Added support for the upcomming Lets_split vitamins included

keyboards/lets_split_vitamins/config.h

@@ -0,0 +1,24 @@
+/*
+Copyright 2012 Jun Wako <wakojun@gmail.com>
+Copyright 2015 Jack Humbert
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef CONFIG_H
+#define CONFIG_H
+
+#include "config_common.h"
+
+#endif

keyboards/lets_split_vitamins/i2c.c

@@ -0,0 +1,162 @@
+#include <util/twi.h>
+#include <avr/io.h>
+#include <stdlib.h>
+#include <avr/interrupt.h>
+#include <util/twi.h>
+#include <stdbool.h>
+#include "i2c.h"
+
+#ifdef USE_I2C
+
+// Limits the amount of we wait for any one i2c transaction.
+// Since were running SCL line 100kHz (=> 10μs/bit), and each transactions is
+// 9 bits, a single transaction will take around 90μs to complete.
+//
+// (F_CPU/SCL_CLOCK)  =>  # of μC cycles to transfer a bit
+// poll loop takes at least 8 clock cycles to execute
+#define I2C_LOOP_TIMEOUT (9+1)*(F_CPU/SCL_CLOCK)/8
+
+#define BUFFER_POS_INC() (slave_buffer_pos = (slave_buffer_pos+1)%SLAVE_BUFFER_SIZE)
+
+volatile uint8_t i2c_slave_buffer[SLAVE_BUFFER_SIZE];
+
+static volatile uint8_t slave_buffer_pos;
+static volatile bool slave_has_register_set = false;
+
+// Wait for an i2c operation to finish
+inline static
+void i2c_delay(void) {
+  uint16_t lim = 0;
+  while(!(TWCR & (1<<TWINT)) && lim < I2C_LOOP_TIMEOUT)
+    lim++;
+
+  // easier way, but will wait slightly longer
+  // _delay_us(100);
+}
+
+// Setup twi to run at 100kHz
+void i2c_master_init(void) {
+  // no prescaler
+  TWSR = 0;
+  // Set TWI clock frequency to SCL_CLOCK. Need TWBR>10.
+  // Check datasheets for more info.
+  TWBR = ((F_CPU/SCL_CLOCK)-16)/2;
+}
+
+// Start a transaction with the given i2c slave address. The direction of the
+// transfer is set with I2C_READ and I2C_WRITE.
+// returns: 0 => success
+//          1 => error
+uint8_t i2c_master_start(uint8_t address) {
+  TWCR = (1<<TWINT) | (1<<TWEN) | (1<<TWSTA);
+
+  i2c_delay();
+
+  // check that we started successfully
+  if ( (TW_STATUS != TW_START) && (TW_STATUS != TW_REP_START))
+    return 1;
+
+  TWDR = address;
+  TWCR = (1<<TWINT) | (1<<TWEN);
+
+  i2c_delay();
+
+  if ( (TW_STATUS != TW_MT_SLA_ACK) && (TW_STATUS != TW_MR_SLA_ACK) )
+    return 1; // slave did not acknowledge
+  else
+    return 0; // success
+}
+
+
+// Finish the i2c transaction.
+void i2c_master_stop(void) {
+  TWCR = (1<<TWINT) | (1<<TWEN) | (1<<TWSTO);
+
+  uint16_t lim = 0;
+  while(!(TWCR & (1<<TWSTO)) && lim < I2C_LOOP_TIMEOUT)
+    lim++;
+}
+
+// Write one byte to the i2c slave.
+// returns 0 => slave ACK
+//         1 => slave NACK
+uint8_t i2c_master_write(uint8_t data) {
+  TWDR = data;
+  TWCR = (1<<TWINT) | (1<<TWEN);
+
+  i2c_delay();
+
+  // check if the slave acknowledged us
+  return (TW_STATUS == TW_MT_DATA_ACK) ? 0 : 1;
+}
+
+// Read one byte from the i2c slave. If ack=1 the slave is acknowledged,
+// if ack=0 the acknowledge bit is not set.
+// returns: byte read from i2c device
+uint8_t i2c_master_read(int ack) {
+  TWCR = (1<<TWINT) | (1<<TWEN) | (ack<<TWEA);
+
+  i2c_delay();
+  return TWDR;
+}
+
+void i2c_reset_state(void) {
+  TWCR = 0;
+}
+
+void i2c_slave_init(uint8_t address) {
+  TWAR = address << 0; // slave i2c address
+  // TWEN  - twi enable
+  // TWEA  - enable address acknowledgement
+  // TWINT - twi interrupt flag
+  // TWIE  - enable the twi interrupt
+  TWCR = (1<<TWIE) | (1<<TWEA) | (1<<TWINT) | (1<<TWEN);
+}
+
+ISR(TWI_vect);
+
+ISR(TWI_vect) {
+  uint8_t ack = 1;
+  switch(TW_STATUS) {
+    case TW_SR_SLA_ACK:
+      // this device has been addressed as a slave receiver
+      slave_has_register_set = false;
+      break;
+
+    case TW_SR_DATA_ACK:
+      // this device has received data as a slave receiver
+      // The first byte that we receive in this transaction sets the location
+      // of the read/write location of the slaves memory that it exposes over
+      // i2c.  After that, bytes will be written at slave_buffer_pos, incrementing
+      // slave_buffer_pos after each write.
+      if(!slave_has_register_set) {
+        slave_buffer_pos = TWDR;
+        // don't acknowledge the master if this memory loctaion is out of bounds
+        if ( slave_buffer_pos >= SLAVE_BUFFER_SIZE ) {
+          ack = 0;
+          slave_buffer_pos = 0;
+        }
+        slave_has_register_set = true;
+      } else {
+        i2c_slave_buffer[slave_buffer_pos] = TWDR;
+        BUFFER_POS_INC();
+      }
+      break;
+
+    case TW_ST_SLA_ACK:
+    case TW_ST_DATA_ACK:
+      // master has addressed this device as a slave transmitter and is
+      // requesting data.
+      TWDR = i2c_slave_buffer[slave_buffer_pos];
+      BUFFER_POS_INC();
+      break;
+
+    case TW_BUS_ERROR: // something went wrong, reset twi state
+      TWCR = 0;
+    default:
+      break;
+  }
+  // Reset everything, so we are ready for the next TWI interrupt
+  TWCR |= (1<<TWIE) | (1<<TWINT) | (ack<<TWEA) | (1<<TWEN);
+}
+#endif

keyboards/lets_split_vitamins/i2c.h

@@ -0,0 +1,49 @@
+#ifndef I2C_H
+#define I2C_H
+
+#include <stdint.h>
+
+#ifndef F_CPU
+#define F_CPU 16000000UL
+#endif
+
+#define I2C_READ 1
+#define I2C_WRITE 0
+
+#define I2C_ACK 1
+#define I2C_NACK 0
+
+#define SLAVE_BUFFER_SIZE 0x10
+
+// i2c SCL clock frequency
+#define SCL_CLOCK  400000L
+
+extern volatile uint8_t i2c_slave_buffer[SLAVE_BUFFER_SIZE];
+
+void i2c_master_init(void);
+uint8_t i2c_master_start(uint8_t address);
+void i2c_master_stop(void);
+uint8_t i2c_master_write(uint8_t data);
+uint8_t i2c_master_read(int);
+void i2c_reset_state(void);
+void i2c_slave_init(uint8_t address);
+
+
+static inline unsigned char i2c_start_read(unsigned char addr) {
+  return i2c_master_start((addr << 1) | I2C_READ);
+}
+
+static inline unsigned char i2c_start_write(unsigned char addr) {
+  return i2c_master_start((addr << 1) | I2C_WRITE);
+}
+
+// from SSD1306 scrips
+extern unsigned char i2c_rep_start(unsigned char addr);
+extern void i2c_start_wait(unsigned char addr);
+extern unsigned char i2c_readAck(void);
+extern unsigned char i2c_readNak(void);
+extern unsigned char i2c_read(unsigned char ack);
+
+#define i2c_read(ack)  (ack) ? i2c_readAck() : i2c_readNak();
+
+#endif

keyboards/lets_split_vitamins/keymaps/DE_simple/config.h

@@ -0,0 +1,37 @@
+/*
+This is the c configuration file for the keymap
+
+Copyright 2012 Jun Wako <wakojun@gmail.com>
+Copyright 2015 Jack Humbert
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef CONFIG_USER_H
+#define CONFIG_USER_H
+
+#include "../../config.h"
+
+/* Use I2C or Serial, not both */
+
+#define USE_SERIAL
+// #define USE_I2C
+
+/* Select hand configuration */
+
+#define MASTER_LEFT
+// #define MASTER_RIGHT
+// #define EE_HANDS
+
+#endif

keyboards/lets_split_vitamins/keymaps/DE_simple/keymap.c

@@ -0,0 +1,157 @@
+#include "lets_split.h"
+#include "action_layer.h"
+#include "eeconfig.h"
+#include "keymap_german.h"
+
+extern keymap_config_t keymap_config;
+
+// Each layer gets a name for readability, which is then used in the keymap matrix below.
+// The underscores don't mean anything - you can have a layer called STUFF or any other name.
+// Layer names don't all need to be of the same length, obviously, and you can also skip them
+// entirely and just use numbers.
+#define _QWERTZ 0
+#define _LOWER 3
+#define _RAISE 4
+#define _ADJUST 16
+
+enum custom_keycodes {
+  QWERTZ = SAFE_RANGE,
+  LOWER,
+  RAISE,
+  ADJUST,
+};
+
+// Fillers to make layering more clear
+#define _______ KC_TRNS
+#define XXXXXXX KC_NO
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+/* Qwertz
+ * ,-----------------------------------------------------------------------------------.
+ * | Esc  |   Q  |   W  |   E  |   R  |   T  |   Z  |   U  |   I  |   O  |   P  | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Tab  |   A  |   S  |   D  |   F  |   G  |   H  |   J  |   K  |   L  |   +  |  #   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | Shift|   Y  |   X  |   C  |   V  |   B  |   N  |   M  |   ,  |   .  |   -  |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | Ctrl | Alt  | AltGr| GUI  |Lower |Space |Space |Raise | Left | Down |  Up  |Right |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_QWERTZ] = KEYMAP( \
+  KC_ESC,  DE_Q,    DE_W,    DE_E,    DE_R,    DE_T,    DE_Z,    DE_U,    DE_I,    DE_O,    DE_P,    KC_BSPC, \
+  KC_TAB,  DE_A,    DE_S,    DE_D,    DE_F,    DE_G,    DE_H,    DE_J,    DE_K,    DE_L,    DE_PLUS, DE_HASH, \
+  KC_LSFT, DE_Y,    DE_X,    DE_C,    DE_V,    DE_B,    DE_N,    DE_M,    DE_COMM, DE_DOT,  DE_MINS, KC_ENT , \
+  KC_LCTL, KC_LALT, DE_ALGR, KC_LGUI, LOWER,   KC_SPC,  KC_SPC,  RAISE,   KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT \
+),
+
+/* Lower
+ * ,-----------------------------------------------------------------------------------.
+ * |   °  |   !  |   "  |   §  |   $  |   %  |   &  |   /  |   (  |   )  |   =  | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Del  |  F1  |  F2  |  F3  |  F4  |  F5  |  F6  |   @  |   €  |   ü  |   ?  |  ´   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | Shift|  F7  |  F8  |  F9  |  F10 |  F11 |  F12 |   |  |   ö  |   ä  |      |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      |      |             |      | Next | Vol- | Vol+ | Play |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_LOWER] = KEYMAP( \
+  DE_CIRC, DE_EXLM, DE_DQOT, DE_PARA, DE_DLR,  DE_PERC, DE_AMPR, DE_SLSH, DE_LPRN, DE_RPRN, DE_EQL, KC_BSPC, \
+  KC_DEL,  KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   DE_AT  , DE_EURO, KC_LBRC, DE_QST, DE_QUOT, \
+  KC_LSFT, KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12, DE_PIPE , KC_SCLN, KC_QUOT, _______, KC_ENT, \
+  _______, _______, _______, _______, _______, _______, _______, _______, KC_MNXT, KC_VOLD, KC_VOLU, KC_MPLY \
+),
+
+/* Raise
+ * ,-----------------------------------------------------------------------------------.
+ * |   °  |   1  |   2  |   3  |   4  |   5  |   6  |   7  |   8  |   9  |   0  | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Del  |  F1  |  F2  |  F3  |  F4  |  F5  |  F6  |   {  |   [  |   ]  |   }  |  \   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | Shift|  F7  |  F8  |  F9  |  F10 |  F11 |  F12 |      |      |      |      |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      |      |             |      | Next | Vol- | Vol+ | Play |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_RAISE] = KEYMAP( \
+  KC_GRV,  KC_1,    KC_2,    KC_3,    KC_4,    KC_5,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    KC_BSPC, \
+  KC_DEL,  KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   DE_LCBR, DE_LBRC, DE_RBRC, DE_RCBR , DE_BSLS, \
+  KC_LSFT, KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,  _______, _______, _______, _______, KC_ENT, \
+  _______, _______, _______, _______, _______, _______, _______, _______, KC_MNXT, KC_VOLD, KC_VOLU, KC_MPLY \
+),
+
+/* Adjust (Lower + Raise)
+ * ,-----------------------------------------------------------------------------------.
+ * |      | Reset|      |      |      |      |      |      |      |      |      |  Del |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * |      |      |      |Aud on|Audoff|AGnorm|AGswap|Qwertz|      |      |      |      |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * |      |      |      |      |      |      |      |      |      |      |      |      |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      |      |             |      |      |      |      |      |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_ADJUST] =  KEYMAP( \
+  _______, RESET  , _______, _______, _______, _______, _______, _______, _______, _______, _______, KC_DEL, \
+  _______, _______, _______, AU_ON,   AU_OFF,  AG_NORM, AG_SWAP, QWERTZ,  _______, _______, _______, _______, \
+  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, \
+  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______ \
+)
+
+
+};
+
+#ifdef AUDIO_ENABLE
+float tone_qwertz[][2]     = SONG(QWERTY_SOUND);
+float tone_dvorak[][2]     = SONG(DVORAK_SOUND);
+float tone_colemak[][2]    = SONG(COLEMAK_SOUND);
+#endif
+
+void persistent_default_layer_set(uint16_t default_layer) {
+  eeconfig_update_default_layer(default_layer);
+  default_layer_set(default_layer);
+}
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+  switch (keycode) {
+    case QWERTZ:
+      if (record->event.pressed) {
+        #ifdef AUDIO_ENABLE
+          PLAY_SONG(tone_qwertz);
+        #endif
+        persistent_default_layer_set(1UL<<_QWERTZ);
+      }
+      return false;
+      break;
+    case LOWER:
+      if (record->event.pressed) {
+        layer_on(_LOWER);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      } else {
+        layer_off(_LOWER);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      }
+      return false;
+      break;
+    case RAISE:
+      if (record->event.pressed) {
+        layer_on(_RAISE);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      } else {
+        layer_off(_RAISE);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      }
+      return false;
+      break;
+    case ADJUST:
+      if (record->event.pressed) {
+        layer_on(_ADJUST);
+      } else {
+        layer_off(_ADJUST);
+      }
+      return false;
+      break;
+  }
+  return true;
+}

keyboards/lets_split_vitamins/keymaps/DE_simple/readme.md

@@ -0,0 +1,59 @@
+De_Simple Keymap
+======
+
+Features
+--------
+
+Changed Keymap to reasamble German Layout.
+
+Layout 
+--------
+
+    Qwertz
+    ,-----------------------------------------------------------------------------------.
+    | Esc  |   Q  |   W  |   E  |   R  |   T  |   Z  |   U  |   I  |   O  |   P  | Bksp |
+    |------+------+------+------+------+-------------+------+------+------+------+------|
+    | Tab  |   A  |   S  |   D  |   F  |   G  |   H  |   J  |   K  |   L  |   +  |  #   |
+    |------+------+------+------+------+------|------+------+------+------+------+------|
+    | Shift|   Y  |   X  |   C  |   V  |   B  |   N  |   M  |   ,  |   .  |   -  |Enter |
+    |------+------+------+------+------+------+------+------+------+------+------+------|
+    | Ctrl | Alt  | AltGr| GUI  |Lower |Space |Space |Raise | Left | Down |  Up  |Right |
+    `-----------------------------------------------------------------------------------'
+    
+    
+    Qwerty
+    ,-----------------------------------------------------------------------------------.
+    | Esc  |   Q  |   W  |   E  |   R  |   T  |   Z  |   U  |   I  |   O  |   P  | Bksp |
+    |------+------+------+------+------+-------------+------+------+------+------+------|
+    | Tab  |   A  |   S  |   D  |   F  |   G  |   H  |   J  |   K  |   L  |   +  |  #   |
+    |------+------+------+------+------+------|------+------+------+------+------+------|
+    | Shift|   Y  |   X  |   C  |   V  |   B  |   N  |   M  |   ,  |   .  |   -  |Enter |
+    |------+------+------+------+------+------+------+------+------+------+------+------|
+    | Ctrl | Alt  | AltGr| GUI  |Lower |Space |Space |Raise | Left | Down |  Up  |Right |
+    `-----------------------------------------------------------------------------------'
+    
+    
+    Raise
+    ,-----------------------------------------------------------------------------------.
+    |   °  |   1  |   2  |   3  |   4  |   5  |   6  |   7  |   8  |   9  |   0  | Bksp |
+    |------+------+------+------+------+-------------+------+------+------+------+------|
+    | Del  |  F1  |  F2  |  F3  |  F4  |  F5  |  F6  |   {  |   [  |   ]  |   }  |  \   |
+    |------+------+------+------+------+------|------+------+------+------+------+------|
+    | Shift|  F7  |  F8  |  F9  |  F10 |  F11 |  F12 |      |      |      |      |Enter |
+    |------+------+------+------+------+------+------+------+------+------+------+------|
+    |      |      |      |      |      |             |      | Next | Vol- | Vol+ | Play |
+    `-----------------------------------------------------------------------------------'
+    
+    
+    Adjust (Lower + Raise)
+    ,-----------------------------------------------------------------------------------.
+    |      | Reset|      |      |      |      |      |      |      |      |      |  Del |
+    |------+------+------+------+------+-------------+------+------+------+------+------|
+    |      |      |      |Aud on|Audoff|AGnorm|AGswap|Qwertz|      |      |      |      |
+    |------+------+------+------+------+------|------+------+------+------+------+------|
+    |      |      |      |      |      |      |      |      |      |      |      |      |
+    |------+------+------+------+------+------+------+------+------+------+------+------|
+    |      |      |      |      |      |             |      |      |      |      |      |
+    `-----------------------------------------------------------------------------------'
+
+

keyboards/lets_split_vitamins/keymaps/OLED_sample/config.h

@@ -0,0 +1,60 @@
+/*
+This is the c configuration file for the keymap
+
+Copyright 2012 Jun Wako <wakojun@gmail.com>
+Copyright 2015 Jack Humbert
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef CONFIG_USER_H
+#define CONFIG_USER_H
+
+#include "../../config.h"
+
+/* Use I2C or Serial, not both */
+
+#define USE_I2C
+//#define USE_SERIAL
+
+/* Select hand configuration */
+
+#define MASTER_LEFT
+// #define MASTER_RIGHT
+// #define EE_HANDS
+#define FLIP_HALF
+
+#define SSD1306OLED
+//#define OLED_ROTATE180
+
+
+#define PREVENT_STUCK_MODIFIERS
+#define TAPPING_FORCE_HOLD
+#define TAPPING_TERM 100
+
+#ifdef SUBPROJECT_rev1
+    #include "../../rev1/config.h"
+#endif
+#ifdef SUBPROJECT_rev2
+    #include "../../rev2/config.h"
+#endif
+
+#undef RGBLED_NUM
+#define RGBLIGHT_ANIMATIONS
+#define RGBLED_NUM 6
+#define RGBLIGHT_HUE_STEP 10
+#define RGBLIGHT_SAT_STEP 17
+#define RGBLIGHT_VAL_STEP 17
+
+#endif

keyboards/lets_split_vitamins/keymaps/OLED_sample/keymap.c

@@ -0,0 +1,447 @@
+#include "lets_split.h"
+#include "bootloader.h"
+#include "action_layer.h"
+#include "eeconfig.h"
+#include "LUFA/Drivers/Peripheral/TWI.h"
+#ifdef AUDIO_ENABLE
+  #include "audio.h"
+#endif
+#ifdef SSD1306OLED
+  #include "ssd1306.h"
+#endif
+
+extern keymap_config_t keymap_config;
+
+//Following line allows macro to read current RGB settings
+extern rgblight_config_t rgblight_config;
+
+
+// Each layer gets a name for readability, which is then used in the keymap matrix below.
+// The underscores don't mean anything - you can have a layer called STUFF or any other name.
+// Layer names don't all need to be of the same length, obviously, and you can also skip them
+// entirely and just use numbers.
+#define _QWERTY 0
+#define _COLEMAK 1
+#define _DVORAK 2
+#define _LOWER 3
+#define _RAISE 4
+#define _ADJUST 16
+
+enum custom_keycodes {
+  QWERTY = SAFE_RANGE,
+  COLEMAK,
+  DVORAK,
+  LOWER,
+  RAISE,
+  ADJUST,
+  BACKLIT,
+  RGBLED_TOGGLE,
+  RGBLED_STEP_MODE,
+  RGBLED_INCREASE_HUE,
+  RGBLED_DECREASE_HUE,
+  RGBLED_INCREASE_SAT,
+  RGBLED_DECREASE_SAT,
+  RGBLED_INCREASE_VAL,
+  RGBLED_DECREASE_VAL,
+};
+
+enum macro_keycodes {
+  KC_SAMPLEMACRO,
+};
+
+
+// Fillers to make layering more clear
+#define _______ KC_TRNS
+#define XXXXXXX KC_NO
+//Macros
+#define M_SAMPLE M(KC_SAMPLEMACRO)
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+/* Qwerty
+ * ,-----------------------------------------------------------------------------------.
+ * | Tab  |   Q  |   W  |   E  |   R  |   T  |   Y  |   U  |   I  |   O  |   P  | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Esc  |   A  |   S  |   D  |   F  |   G  |   H  |   J  |   K  |   L  |   ;  |  "   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | Shift|   Z  |   X  |   C  |   V  |   B  |   N  |   M  |   ,  |   .  |   /  |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |Adjust| Ctrl | Alt  | GUI  |Lower |Space |Space |Raise | Left | Down |  Up  |Right |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_QWERTY] = KEYMAP( \
+  KC_TAB,  KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,    KC_BSPC, \
+  KC_ESC,  KC_A,    KC_S,    KC_D,    KC_F,    KC_G,    KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN, KC_QUOT, \
+  KC_LSFT, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_N,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, KC_ENT , \
+  ADJUST,  KC_LCTL, KC_LALT, KC_LGUI, LOWER,   KC_SPC,  KC_SPC,  RAISE,   KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT \
+),
+
+/* Colemak
+ * ,-----------------------------------------------------------------------------------.
+ * | Tab  |   Q  |   W  |   F  |   P  |   G  |   J  |   L  |   U  |   Y  |   ;  | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Esc  |   A  |   R  |   S  |   T  |   D  |   H  |   N  |   E  |   I  |   O  |  "   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | Shift|   Z  |   X  |   C  |   V  |   B  |   K  |   M  |   ,  |   .  |   /  |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |Adjust| Ctrl | Alt  | GUI  |Lower |Space |Space |Raise | Left | Down |  Up  |Right |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_COLEMAK] = KEYMAP( \
+  KC_TAB,  KC_Q,    KC_W,    KC_F,    KC_P,    KC_G,    KC_J,    KC_L,    KC_U,    KC_Y,    KC_SCLN, KC_BSPC, \
+  KC_ESC,  KC_A,    KC_R,    KC_S,    KC_T,    KC_D,    KC_H,    KC_N,    KC_E,    KC_I,    KC_O,    KC_QUOT, \
+  KC_LSFT, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_K,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, KC_ENT , \
+  ADJUST,  KC_LCTL, KC_LALT, KC_LGUI, LOWER,   KC_SPC,  KC_SPC,  RAISE,   KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT \
+),
+
+/* Dvorak
+ * ,-----------------------------------------------------------------------------------.
+ * | Tab  |   "  |   ,  |   .  |   P  |   Y  |   F  |   G  |   C  |   R  |   L  | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Esc  |   A  |   O  |   E  |   U  |   I  |   D  |   H  |   T  |   N  |   S  |  /   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | Shift|   ;  |   Q  |   J  |   K  |   X  |   B  |   M  |   W  |   V  |   Z  |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |Adjust| Ctrl | Alt  | GUI  |Lower |Space |Space |Raise | Left | Down |  Up  |Right |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_DVORAK] = KEYMAP( \
+  KC_TAB,  KC_QUOT, KC_COMM, KC_DOT,  KC_P,    KC_Y,    KC_F,    KC_G,    KC_C,    KC_R,    KC_L,    KC_BSPC, \
+  KC_ESC,  KC_A,    KC_O,    KC_E,    KC_U,    KC_I,    KC_D,    KC_H,    KC_T,    KC_N,    KC_S,    KC_SLSH, \
+  KC_LSFT, KC_SCLN, KC_Q,    KC_J,    KC_K,    KC_X,    KC_B,    KC_M,    KC_W,    KC_V,    KC_Z,    KC_ENT , \
+  ADJUST,  KC_LCTL, KC_LALT, KC_LGUI, LOWER,   KC_SPC,  KC_SPC,  RAISE,   KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT \
+),
+
+/* Lower
+ * ,-----------------------------------------------------------------------------------.
+ * |   ~  |   !  |   @  |   #  |   $  |   %  |   ^  |   &  |   *  |   (  |   )  | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Del  |  F1  |  F2  |  F3  |  F4  |  F5  |  F6  |   _  |   +  |     |    \  |  |   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * |      |  F7  |  F8  |  F9  |  F10 |  F11 |  F12 |ISO ~ |ISO | |      |      |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      |      |             |      | Next | Vol- | Vol+ | Play |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_LOWER] = KEYMAP( \
+  KC_TILD, KC_EXLM, KC_AT,   KC_HASH, KC_DLR,  KC_PERC, KC_CIRC, KC_AMPR, KC_ASTR, KC_LPRN, KC_RPRN, KC_BSPC, \
+  KC_DEL,  KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_UNDS, KC_PLUS, KC_LCBR, KC_RCBR, KC_PIPE, \
+  _______, KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,S(KC_NUHS),S(KC_NUBS),_______, _______, _______, \
+  _______, _______, _______, _______, _______, _______, _______, _______, KC_MNXT, KC_VOLD, KC_VOLU, KC_MPLY \
+),
+
+/* Raise
+ * ,-----------------------------------------------------------------------------------.
+ * |   `  |   1  |   2  |   3  |   4  |   5  |   6  |   7  |   8  |   9  |   0  | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Del  |  F1  |  F2  |  F3  |  F4  |  F5  |  F6  |   -  |   =  |   [  |   ]  |  \   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * |      |  F7  |  F8  |  F9  |  F10 |  F11 |  F12 |ISO # |ISO / |      |      |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      |      |             |      | Next | Vol- | Vol+ | Play |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_RAISE] = KEYMAP( \
+  KC_GRV,  KC_1,    KC_2,    KC_3,    KC_4,    KC_5,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    KC_BSPC, \
+  KC_DEL,  KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_MINS, KC_EQL,  KC_LBRC, KC_RBRC, KC_BSLS, \
+  _______, KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,  KC_NUHS, KC_NUBS, _______, _______, _______, \
+  _______, _______, _______, _______, _______, _______, _______, _______, KC_MNXT, KC_VOLD, KC_VOLU, KC_MPLY \
+),
+
+/* Adjust (Lower + Raise)
+ * ,-----------------------------------------------------------------------------------.
+ * |      | Reset|      |      |      |      |      |      |      |      |      |  Del |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * |      |      |      |Aud on|Audoff|AGnorm|AGswap|Qwerty|Colemk|Dvorak|      |      |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * |      |      |      |      |      |      |      |      |      |      |      |      |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      |      |             |      |      |      |      |      |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_ADJUST] =  KEYMAP( \
+  _______, RESET,   _______, M_SAMPLE, _______, _______, _______, _______, _______, _______, _______, KC_DEL, \
+  _______, _______, _______, AU_ON,   AU_OFF,  AG_NORM, AG_SWAP, QWERTY,  COLEMAK, DVORAK,  _______, _______, \
+  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, \
+  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______ \
+)
+
+
+};
+
+
+#ifdef AUDIO_ENABLE
+
+float tone_startup[][2]    = SONG(STARTUP_SOUND);
+float tone_qwerty[][2]     = SONG(QWERTY_SOUND);
+float tone_dvorak[][2]     = SONG(DVORAK_SOUND);
+float tone_colemak[][2]    = SONG(COLEMAK_SOUND);
+float tone_plover[][2]     = SONG(PLOVER_SOUND);
+float tone_plover_gb[][2]  = SONG(PLOVER_GOODBYE_SOUND);
+float music_scale[][2]     = SONG(MUSIC_SCALE_SOUND);
+float tone_goodbye[][2]    = SONG(GOODBYE_SOUND);
+#endif
+
+// define variables for reactive RGB
+bool TOG_STATUS = false;
+int RGB_current_mode;
+
+void persistent_default_layer_set(uint16_t default_layer) {
+  eeconfig_update_default_layer(default_layer);
+  default_layer_set(default_layer);
+}
+
+// Setting ADJUST layer RGB back to default
+void update_tri_layer_RGB(uint8_t layer1, uint8_t layer2, uint8_t layer3) {
+  if (IS_LAYER_ON(layer1) && IS_LAYER_ON(layer2)) {
+    rgblight_mode(RGB_current_mode);
+    layer_on(layer3);
+  } else {
+    layer_off(layer3);
+  }
+}
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+  switch (keycode) {
+    case QWERTY:
+      if (record->event.pressed) {
+        #ifdef AUDIO_ENABLE
+          PLAY_SONG(tone_qwerty);
+        #endif
+        persistent_default_layer_set(1UL<<_QWERTY);
+      }
+      return false;
+      break;
+    case COLEMAK:
+      if (record->event.pressed) {
+        #ifdef AUDIO_ENABLE
+          PLAY_SONG(tone_colemak);
+        #endif
+        persistent_default_layer_set(1UL<<_COLEMAK);
+      }
+      return false;
+      break;
+    case DVORAK:
+      if (record->event.pressed) {
+        #ifdef AUDIO_ENABLE
+          PLAY_SONG(tone_dvorak);
+        #endif
+        persistent_default_layer_set(1UL<<_DVORAK);
+      }
+      return false;
+      break;
+    case LOWER:
+      if (record->event.pressed) {
+          //not sure how to have keyboard check mode and set it to a variable, so my work around
+          //uses another variable that would be set to true after the first time a reactive key is pressed.
+        if (TOG_STATUS) { //TOG_STATUS checks is another reactive key currently pressed, only changes RGB mode if returns false
+        } else {
+          TOG_STATUS = !TOG_STATUS;
+          rgblight_mode(16);
+        }
+        layer_on(_LOWER);
+        update_tri_layer_RGB(_LOWER, _RAISE, _ADJUST);
+      } else {
+        rgblight_mode(RGB_current_mode);   // revert RGB to initial mode prior to RGB mode change
+        TOG_STATUS = false;
+        layer_off(_LOWER);
+        update_tri_layer_RGB(_LOWER, _RAISE, _ADJUST);
+      }
+      return false;
+      break;
+    case RAISE:
+      if (record->event.pressed) {
+        //not sure how to have keyboard check mode and set it to a variable, so my work around
+        //uses another variable that would be set to true after the first time a reactive key is pressed.
+        if (TOG_STATUS) { //TOG_STATUS checks is another reactive key currently pressed, only changes RGB mode if returns false
+        } else {
+          TOG_STATUS = !TOG_STATUS;
+          rgblight_mode(15);
+        }
+        layer_on(_RAISE);
+        update_tri_layer_RGB(_LOWER, _RAISE, _ADJUST);
+      } else {
+        rgblight_mode(RGB_current_mode);  // revert RGB to initial mode prior to RGB mode change
+        layer_off(_RAISE);
+        TOG_STATUS = false;
+        update_tri_layer_RGB(_LOWER, _RAISE, _ADJUST);
+      }
+      return false;
+      break;
+    case BACKLIT:
+      if (record->event.pressed) {
+        register_code(KC_RSFT);
+        #ifdef BACKLIGHT_ENABLE
+          backlight_step();
+        #endif
+      } else {
+        unregister_code(KC_RSFT);
+      }
+      return false;
+      break;
+      //led operations - RGB mode change now updates the RGB_current_mode to allow the right RGB mode to be set after reactive keys are released
+    case RGB_MOD:
+      if (record->event.pressed) {
+        rgblight_mode(RGB_current_mode);
+        rgblight_step();
+        RGB_current_mode = rgblight_config.mode;
+      }
+      return false;
+      break;
+  }
+  return true;
+}
+
+void matrix_init_user(void) {
+    #ifdef AUDIO_ENABLE
+        startup_user();
+    #endif
+    RGB_current_mode = rgblight_config.mode;
+}
+
+//SSD1306 OLED init and update loop, make sure to add #define SSD1306OLED in config.h
+#ifdef SSD1306OLED
+void matrix_master_OLED_init (void) {
+    TWI_Init(TWI_BIT_PRESCALE_1, TWI_BITLENGTH_FROM_FREQ(1, 800000));
+    iota_gfx_init();   // turns on the display
+}
+
+void matrix_scan_user(void) {
+     iota_gfx_task();  // this is what updates the display continuously
+}
+#endif
+
+#ifdef AUDIO_ENABLE
+
+void startup_user()
+{
+    _delay_ms(20); // gets rid of tick
+    PLAY_SONG(tone_startup);
+}
+
+void shutdown_user()
+{
+    PLAY_SONG(tone_goodbye);
+    _delay_ms(150);
+    stop_all_notes();
+}
+
+void music_on_user(void)
+{
+    music_scale_user();
+}
+
+void music_scale_user(void)
+{
+    PLAY_SONG(music_scale);
+}
+
+#endif
+
+/*
+ * Macro definition
+ */
+const macro_t *action_get_macro(keyrecord_t *record, uint8_t id, uint8_t opt)
+{
+    if (!eeconfig_is_enabled()) {
+      eeconfig_init();
+    }
+
+    switch (id) {
+      case KC_SAMPLEMACRO:
+        if (record->event.pressed){
+          return MACRO (I(10), T(H), T(E), T(L), T(L), T(O), T(SPACE), T(W), T(O), T(R), T(L), T(D), END);
+        }
+
+    }
+
+    return MACRO_NONE;
+}
+
+
+void matrix_update(struct CharacterMatrix *dest,
+                          const struct CharacterMatrix *source) {
+  if (memcmp(dest->display, source->display, sizeof(dest->display))) {
+    memcpy(dest->display, source->display, sizeof(dest->display));
+    dest->dirty = true;
+  }
+}
+
+//assign the right code to your layers for OLED display
+#define L_BASE 0
+#define L_LOWER 8
+#define L_RAISE 16
+#define L_FNLAYER 64
+#define L_NUMLAY 128
+#define L_NLOWER 136
+#define L_NFNLAYER 192
+#define L_MOUSECURSOR 256
+#define L_ADJUST 65560
+
+void iota_gfx_task_user(void) {
+#if DEBUG_TO_SCREEN
+  if (debug_enable) {
+    return;
+  }
+#endif
+
+  struct CharacterMatrix matrix;
+
+  matrix_clear(&matrix);
+  matrix_write_P(&matrix, PSTR("USB: "));
+#ifdef PROTOCOL_LUFA
+  switch (USB_DeviceState) {
+    case DEVICE_STATE_Unattached:
+      matrix_write_P(&matrix, PSTR("Unattached"));
+      break;
+    case DEVICE_STATE_Suspended:
+      matrix_write_P(&matrix, PSTR("Suspended"));
+      break;
+    case DEVICE_STATE_Configured:
+      matrix_write_P(&matrix, PSTR("Connected"));
+      break;
+    case DEVICE_STATE_Powered:
+      matrix_write_P(&matrix, PSTR("Powered"));
+      break;
+    case DEVICE_STATE_Default:
+      matrix_write_P(&matrix, PSTR("Default"));
+      break;
+    case DEVICE_STATE_Addressed:
+      matrix_write_P(&matrix, PSTR("Addressed"));
+      break;
+    default:
+      matrix_write_P(&matrix, PSTR("Invalid"));
+  }
+#endif
+
+// Define layers here, Have not worked out how to have text displayed for each layer. Copy down the number you see and add a case for it below
+
+  char buf[40];
+  snprintf(buf,sizeof(buf), "Undef-%ld", layer_state);
+  matrix_write_P(&matrix, PSTR("\n\nLayer: "));
+    switch (layer_state) {
+        case L_BASE:
+           matrix_write_P(&matrix, PSTR("Default"));
+           break;
+        case L_RAISE:
+           matrix_write_P(&matrix, PSTR("Raise"));
+           break;
+        case L_LOWER:
+           matrix_write_P(&matrix, PSTR("Lower"));
+           break;
+        case L_ADJUST:
+           matrix_write_P(&matrix, PSTR("ADJUST"));
+           break;
+        default:
+           matrix_write(&matrix, buf);
+ }
+
+  // Host Keyboard LED Status
+  char led[40];
+    snprintf(led, sizeof(led), "\n%s  %s  %s",
+            (host_keyboard_leds() & (1<<USB_LED_NUM_LOCK)) ? "NUMLOCK" : "       ",
+            (host_keyboard_leds() & (1<<USB_LED_CAPS_LOCK)) ? "CAPS" : "    ",
+            (host_keyboard_leds() & (1<<USB_LED_SCROLL_LOCK)) ? "SCLK" : "    ");
+  matrix_write(&matrix, led);
+  matrix_update(&display, &matrix);
+}

keyboards/lets_split_vitamins/keymaps/OLED_sample/readme.md

@@ -0,0 +1,25 @@
+SSD1306 OLED Display via I2C
+======
+
+Features
+--------
+
+Some features supported by the firmware:
+
+
+* I2C connection between the two halves is required as the OLED display will use this connection as well. Note this
+  requires pull-up resistors on the data and clock lines.
+* OLED display will connect from either side
+
+
+Wiring
+------
+
+
+Work in progress...
+
+
+OLED Configuration
+-------------------------------
+
+Work in progress...

keyboards/lets_split_vitamins/keymaps/OLED_sample/rules.mk

@@ -0,0 +1,25 @@
+
+# Build Options
+#   change to "no" to disable the options, or define them in the Makefile in 
+#   the appropriate keymap folder that will get included automatically
+#
+BOOTMAGIC_ENABLE = no       # Virtual DIP switch configuration(+1000)
+MOUSEKEY_ENABLE = yes       # Mouse keys(+4700)
+EXTRAKEY_ENABLE = yes       # Audio control and System control(+450)
+CONSOLE_ENABLE = no         # Console for debug(+400)
+COMMAND_ENABLE = no        # Commands for debug and configuration
+NKRO_ENABLE = yes            # Nkey Rollover - if this doesn't work, see here: https://github.com/tmk/tmk_keyboard/wiki/FAQ#nkro-doesnt-work
+BACKLIGHT_ENABLE = no      # Enable keyboard backlight functionality
+MIDI_ENABLE = no            # MIDI controls
+AUDIO_ENABLE = no           # Audio output on port C6
+UNICODE_ENABLE = no         # Unicode
+BLUETOOTH_ENABLE = no       # Enable Bluetooth with the Adafruit EZ-Key HID
+RGBLIGHT_ENABLE = yes        # Enable WS2812 RGB underlight.  Do not enable this with audio at the same time.
+ONEHAND_ENABLE = no        # Enable one-hand typing
+
+# Do not enable SLEEP_LED_ENABLE. it uses the same timer as BACKLIGHT_ENABLE
+SLEEP_LED_ENABLE = no    # Breathing sleep LED during USB suspend
+
+ifndef QUANTUM_DIR
+	include ../../../../Makefile
+endif

keyboards/lets_split_vitamins/keymaps/adam/config.h

@@ -0,0 +1,50 @@
+/*
+This is the c configuration file for the keymap
+
+Copyright 2012 Jun Wako <wakojun@gmail.com>
+Copyright 2015 Jack Humbert
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef CONFIG_USER_H
+#define CONFIG_USER_H
+
+#include "../../config.h"
+
+/* Use I2C or Serial, not both */
+
+#define USE_SERIAL
+// #define USE_I2C
+
+/* Select hand configuration */
+
+// #define MASTER_LEFT
+// #define MASTER_RIGHT
+#define EE_HANDS
+
+#ifdef SUBPROJECT_rev2
+    /* RGB Underglow */
+    #undef RGBLED_NUM
+    #define RGBLIGHT_ANIMATIONS
+    #define RGBLED_NUM 8
+#endif
+
+#undef TAPPING_TERM
+#define TAPPING_TERM 200 //At 500 some bad logic takes hold
+#define PREVENT_STUCK_MODIFIERS
+#define IGNORE_MOD_TAP_INTERRUPT
+#define PERMISSIVE_HOLD
+
+#endif

keyboards/lets_split_vitamins/keymaps/adam/keymap.c

@@ -0,0 +1,79 @@
+#include "lets_split.h"
+#include "action_layer.h"
+#include "eeconfig.h"
+
+extern keymap_config_t keymap_config;
+
+// Each layer gets a name for readability, which is then used in the keymap matrix below.
+// The underscores don't mean anything - you can have a layer called STUFF or any other name.
+// Layer names don't all need to be of the same length, obviously, and you can also skip them
+// entirely and just use numbers.
+#define BASE 0 // default layer
+#define FLOCK 1 // symbols arrows and F keys on F held down
+#define JLOCK 2 // same as Flock but with fall thru J and mapped to J held down
+
+// Fillers to make layering more clear
+#define _______ KC_TRNS
+#define XXXXXXX KC_NO
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+/* Qwerty
+ * ,-----------------------------------------------------------------------------------.
+ * | Tab  |   Q  |   W  |   E  |   R  |   T  |   Y  |   U  |   I  |   O  |   P  | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Esc  |   A  |   S  |   D  |   F  |   G  |   H  |   J  |   K  |   L  |   ;  |  "   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | Shift|   Z  |   X  |   C  |   V  |   B  |   N  |   M  |   ,  |   .  |   /  |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | Brite| Ctrl | Alt  | GUI  |Lower | Bksp |Space |Raise | Left | Down |  Up  |Right |
+ * `-----------------------------------------------------------------------------------'
+ */
+[BASE] = KEYMAP ( \
+  TD(1),         KC_2,       KC_3,         KC_4,     KC_5,         KC_MINS, KC_EQL,    KC_6,        KC_7,        KC_8,         KC_9,           KC_0,     \
+  KC_Q,         KC_W,       KC_E,         KC_R,     KC_T,         KC_TAB,  KC_TAB,    KC_Y,        KC_U,        KC_I,         KC_O,           KC_P,    \
+  SFT_T(KC_A),  ALT_T(KC_S),CTL_T(KC_D),  F(FLOCK), GUI_T(KC_G),  KC_BSPC, KC_DELETE, GUI_T(KC_H), F(JLOCK),    CTL_T(KC_K),  ALT_T(KC_L),    SFT_T(KC_SCLN), \
+  KC_Z,         KC_X,       KC_C,         KC_V,     KC_B,         KC_SPC,  KC_ENT,    KC_N,        KC_M,        KC_COMM,      KC_DOT,         KC_QUOTE
+),
+[FLOCK] = KEYMAP ( \
+  KC_F1,      KC_F2,      KC_F3,       KC_F4,      KC_F5,      KC_F11,     KC_F12,     KC_F6,      KC_F7,      KC_F8,     KC_F9,    KC_F10, \
+  KC_LBRC,    KC_GRV,     KC_TILDE,    S(KC_1),    XXXXXXX,    XXXXXXX,    XXXXXXX,    XXXXXXX,    KC_HOME,    KC_PGUP,   XXXXXXX,  KC_RBRC, \
+  S(KC_LBRC), _______,    _______,     _______,    _______,    XXXXXXX,    XXXXXXX,    KC_LEFT,    KC_DOWN,    KC_UP,     KC_RIGHT, S(KC_RBRC), \
+  KC_BSLS,    KC_PIPE,    XXXXXXX,     XXXXXXX,    XXXXXXX,    KC_ESC,     KC_ESC,     XXXXXXX,    KC_END,     KC_PGDOWN, KC_QUES,  KC_SLASH \
+),
+[JLOCK] = KEYMAP ( \
+  KC_F1,      KC_F2,      KC_F3,       KC_F4,      KC_F5,      KC_F11,     KC_F12,     KC_F6,      KC_F7,      KC_F8,     KC_F9,    KC_F10, \
+  KC_LBRC,    KC_GRV,     KC_TILDE,    S(KC_1),    XXXXXXX,    XXXXXXX,    XXXXXXX,    XXXXXXX,    KC_HOME,    KC_PGUP,   XXXXXXX,  KC_RBRC, \
+  S(KC_LBRC), _______,    _______,     _______,    _______,    XXXXXXX,    XXXXXXX,    KC_LEFT,    _______,    KC_UP,     KC_RIGHT, S(KC_RBRC), \
+  KC_BSLS,    KC_PIPE,    XXXXXXX,     XXXXXXX,    XXXXXXX,    KC_ESC,     KC_ESC,     XXXXXXX,    KC_END,     KC_PGDOWN, KC_QUES,  KC_SLASH \
+)
+};
+
+const uint16_t PROGMEM fn_actions[] = {
+  [FLOCK] = ACTION_LAYER_TAP_KEY(FLOCK,KC_F),
+  [JLOCK] = ACTION_LAYER_TAP_KEY(JLOCK,KC_J)
+};
+#ifdef TAP_DANCE_ENABLE
+void tap_1(qk_tap_dance_state_t *state, void *user_data) {
+  switch (state->count) {
+  case 1:
+    register_code (KC_1);
+    unregister_code (KC_1);
+    break;
+  case 2:
+    register_code (KC_ESC);
+    unregister_code (KC_ESC);
+    break;
+  case 3:
+    register_code (KC_LSFT);
+    register_code (KC_1);
+    unregister_code (KC_1);
+    unregister_code (KC_LSFT);
+  }
+}
+
+qk_tap_dance_action_t tap_dance_actions[] = {
+	[0]  = ACTION_TAP_DANCE_DOUBLE(KC_1, KC_ESC),
+  [1]  = ACTION_TAP_DANCE_FN(tap_1)
+};
+#endif

keyboards/lets_split_vitamins/keymaps/dale/config.h

@@ -0,0 +1,37 @@
+/*
+This is the c configuration file for the keymap
+
+Copyright 2012 Jun Wako <wakojun@gmail.com>
+Copyright 2015 Jack Humbert
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef CONFIG_USER_H
+#define CONFIG_USER_H
+
+#include "config_common.h"
+
+/* Use I2C or Serial, not both */
+
+#define USE_SERIAL
+// #define USE_I2C
+
+/* Select hand configuration */
+
+#define MASTER_LEFT
+// #define MASTER_RIGHT
+// #define EE_HANDS
+
+#endif

keyboards/lets_split_vitamins/keymaps/dale/keymap.c

@@ -0,0 +1,217 @@
+// Can't Remember Sh*t Keymap for Let's Split
+// Trying to fit as many characters as possible on the default layer
+// 	as its easier for me to remember logical functions than characters
+// Also, I like me some numpad
+
+
+#include "lets_split.h"
+#include "action_layer.h"
+#ifdef AUDIO_ENABLE
+  #include "audio.h"
+#endif
+#include "eeconfig.h"
+
+extern keymap_config_t keymap_config;
+
+// Each layer gets a name for readability, which is then used in the keymap matrix below.
+// The underscores don't mean anything - you can have a layer called STUFF or any other name.
+// Layer names don't all need to be of the same length, obviously, and you can also skip them
+// entirely and just use numbers.
+#define _QWERTY 0
+#define _GAME   1
+#define _LOWER 3
+#define _RAISE 4
+#define _ADJUST 16
+
+enum custom_keycodes {
+  QWERTY = SAFE_RANGE,
+  GAME,
+  LOWER,
+  RAISE,
+  BACKLIT,
+};
+
+// Fillers to make layering more clear
+#define _______ KC_TRNS
+#define XXXXXXX KC_NO
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+/* Qwerty
+ * ,-----------------------------------------------------------------------------------.
+ * | Esc  |   Q  |   W  |   E  |   R  |   T  |   Y  |   U  |   I  |   O  |   P  | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Tab  |   A  |   S  |   D  |   F  |   G  |   H  |   J  |   K  |   L  |   ;  |  '   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | Shift|   Z  |   X  |   C  |   V  |   B  |   N  |   M  |   ,  |   .  |   /  |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | Ctrl |  GUI |  \   | Alt  | Lower|SpcRse| Space|Raise |   [  |   -  |   =  |   ]  |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_QWERTY] = KEYMAP( \
+  KC_ESC,  KC_Q,    KC_W,    KC_E,    KC_R,   KC_T,    KC_Y,    KC_U,   KC_I,    KC_O,   KC_P,    KC_BSPC, \
+  KC_TAB,  KC_A,    KC_S,    KC_D,    KC_F,   KC_G,    KC_H,    KC_J,   KC_K,    KC_L,   KC_SCLN, KC_QUOT, \
+  KC_LSFT, KC_Z,    KC_X,    KC_C,    KC_V,   KC_B,    KC_N,    KC_M,   KC_COMM, KC_DOT, KC_SLSH, SFT_T(KC_ENT), \
+  KC_LCTL, KC_LGUI, KC_BSLS, KC_LALT, LOWER,  LT(4, KC_SPC),  KC_SPC,  RAISE,  LT(3, KC_LBRC), KC_MINS, KC_EQL, CTL_T(KC_RBRC) \
+),
+
+/* Game
+ * ,-----------------------------------------------------------------------------------.
+ * |   1  |   Q  |   W  |   E  |   R  |   T  |   Y  |   U  |   I  |   O  |   P  | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * |Shift |   A  |   S  |   D  |   F  |   G  |   H  |   J  |   K  |   L  |   ;  |  '   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | Ctrl |   Z  |   X  |   C  |   V  |   B  |   N  |   M  |   ,  |   .  |   /  |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | Alt  |   4  |   3  |   2  | Lower|    Space    |Raise | Left | Down |  Up  | Right|
+ * `-----------------------------------------------------------------------------------'
+ */
+[_GAME] = KEYMAP( \
+     KC_1,   KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,    KC_U,   KC_I,    KC_O,   KC_P,    KC_BSPC, \
+  KC_LSFT,   KC_A,    KC_S,    KC_D,    KC_F,    KC_G,    KC_H,    KC_J,   KC_K,    KC_L,   KC_SCLN, KC_QUOT, \
+  KC_LCTL,   KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_N,    KC_M,   KC_COMM, KC_DOT, KC_SLSH, _______ , \
+  KC_LALT,   KC_4,    KC_3,    KC_2,    LOWER,  KC_SPC,  KC_SPC,   RAISE,  KC_LEFT, KC_DOWN, KC_UP, KC_RIGHT \
+),
+
+
+/* Lower   (switched to # because KP# were weird in terminal emulators)
+ * ,-----------------------------------------------------------------------------------.
+ * |  Del |   1  |   2  |   3  |   4  |   5  |   6  |   7  |   8  |   9  |   0  | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * |  Tab |  F1  |  F2  |  F3  |  F4  |  F5  |  F6  |   4  |   5  |   6  |   .  |  *   |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | NumLk|  F7  |  F8  |  F9  |  F10 |  F11 |  F12 |   1  |   2  |   3  |   /  |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |  Esc |      |      |      |      |      |   0  |      |      |      | KP_+ |      |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_LOWER] = KEYMAP( \
+   KC_DEL,   KC_1,   KC_2,   KC_3,   KC_4,   KC_5,   KC_6,   KC_7,  KC_8, KC_9,    KC_0,  _______, \
+   _______,   KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_4,  KC_5, KC_6,  KC_DOT, KC_ASTR, \
+  _______,   KC_F7,   KC_F8,   KC_F9,  KC_F10,  KC_F11,   KC_F12,  KC_1,  KC_2, KC_3, KC_SLSH,  _______, \
+  KC_ESC, _______, _______, _______, _______, _______,    KC_0, _______,  _______, _______, KC_PLUS, _______ \
+),
+
+/* Raise
+ * ,-----------------------------------------------------------------------------------.
+ * |   ~  |   !  |   @  |   #  |   $  |   %  |   ^  |   &  |   *  |   (  |   )  |  Del |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Del  | Wh Up|RightC| M-Up | LeftC|QWERTY| Left | Down |  Up  | Right|  |   |   `  |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * |      | Wh Dn| M-L  | M-Dn | M-R  | ACL0 | ACL1 | ACL2 |      |      |  \   |      |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      | App  |      |      |      |      |  Ins |      | Home | PGDN | PGUP |  End |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_RAISE] = KEYMAP( \
+  KC_TILD,   KC_EXLM,     KC_AT, KC_HASH,  KC_DLR, KC_PERC, KC_CIRC, KC_AMPR, KC_ASTR, KC_LPRN,   KC_RPRN, KC_DEL, \
+   KC_DEL,   KC_WH_U,   KC_BTN2, KC_MS_U, KC_BTN1, QWERTY, KC_LEFT, KC_DOWN,   KC_UP, KC_RGHT,   KC_PIPE,  KC_GRV, \
+  _______,   KC_WH_D,   KC_MS_L, KC_MS_D, KC_MS_R, KC_ACL0, KC_ACL1, KC_ACL2, _______, _______, KC_BSLASH, _______, \
+  _______,   KC_APP,   _______, _______, _______, _______, KC_INS, _______, KC_HOME, KC_PGDN,   KC_PGUP,  KC_END \
+),
+
+/* Adjust (Lower + Raise)
+ * ,-----------------------------------------------------------------------------------.
+ * | C-A-I|Qwerty|      |      |Reset |Macro0|      |      |      |      |      |C-A-D |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * |      |      |      |Aud on|Audoff| Game |AGswap|AGnorm|      |      |      |      |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * |      |Voice-|Voice+|Mus on|Musoff|MIDIon|MIDIof|      |      |      |      |      |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | Brite|      |      |      |      |             |      | BL_T |BL_DEC|BL_INC|BL_ST |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_ADJUST] = KEYMAP( \
+  LALT(LCTL(KC_INS)), QWERTY,   _______, _______, RESET, M(0),  _______, _______, _______, _______, _______, LALT(LCTL(KC_DEL)), \
+  _______, _______, _______, AU_ON,   AU_OFF,  GAME, AG_SWAP, AG_NORM,  _______, _______,  _______,  _______, \
+  _______, MUV_DE,  MUV_IN,  MU_ON,   MU_OFF,  MI_ON,   MI_OFF,  _______, _______, _______, _______, _______, \
+  BACKLIT, _______, _______, _______, _______, _______, _______, _______, BL_TOGG, BL_DEC , BL_INC , BL_STEP \
+)
+
+
+};
+
+const macro_t *action_get_macro(keyrecord_t *record, uint8_t id, uint8_t opt) // this is the function signature -- just copy/paste it into your keymap file as it is.
+{
+  switch(id) {
+    case 0: // this would trigger when you hit a key mapped as M(0)
+      if (record->event.pressed) {
+        return MACRO( D(LSFT), T(LEFT), U(LSFT), D(LCTL), T(X), U(LCTL), T(RIGHT), D(LCTL), T(V), U(LCTL), T(LEFT),  END  ); // this swaps the characters on either side of the cursor when the macro executes
+      }
+      break;
+  }
+  return MACRO_NONE;
+};
+
+
+#ifdef AUDIO_ENABLE
+float tone_qwerty[][2]     = SONG(QWERTY_SOUND);
+float music_scale[][2]     = SONG(MUSIC_SCALE_SOUND);
+#endif
+
+
+void persistant_default_layer_set(uint16_t default_layer) {
+  eeconfig_update_default_layer(default_layer);
+  default_layer_set(default_layer);
+}
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+  switch (keycode) {
+    case QWERTY:
+      if (record->event.pressed) {
+        #ifdef AUDIO_ENABLE
+          PLAY_SONG(tone_qwerty);
+        #endif
+        persistant_default_layer_set(1UL<<_QWERTY);
+      }
+      return false;
+      break;
+    case GAME:
+      if (record->event.pressed) {
+        #ifdef AUDIO_ENABLE
+          PLAY_SONG(music_scale);
+        #endif
+        persistant_default_layer_set(1UL<<_GAME);
+      }
+      return false;
+      break;
+
+
+      case LOWER:
+        if (record->event.pressed) {
+          layer_on(_LOWER);
+          update_tri_layer(_LOWER, _RAISE, _ADJUST);
+        } else {
+          layer_off(_LOWER);
+          update_tri_layer(_LOWER, _RAISE, _ADJUST);
+        }
+      return false;
+      break;
+    case RAISE:
+      if (record->event.pressed) {
+        layer_on(_RAISE);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      } else {
+        layer_off(_RAISE);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      }
+      return false;
+      break;
+    case BACKLIT:
+      if (record->event.pressed) {
+        register_code(KC_RSFT);
+        #ifdef BACKLIGHT_ENABLE
+          backlight_step();
+        #endif
+      } else {
+        unregister_code(KC_RSFT);
+      }
+      return false;
+      break;
+     }
+  return true;
+}
+
+void matrix_init_user(void) {
+
+}

keyboards/lets_split_vitamins/keymaps/default/config.h

@@ -0,0 +1,37 @@
+/*
+This is the c configuration file for the keymap
+
+Copyright 2012 Jun Wako <wakojun@gmail.com>
+Copyright 2015 Jack Humbert
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef CONFIG_USER_H
+#define CONFIG_USER_H
+
+#include "../../config.h"
+
+/* Use I2C or Serial, not both */
+
+#define USE_SERIAL
+// #define USE_I2C
+
+/* Select hand configuration */
+
+//#define MASTER_LEFT
+// #define MASTER_RIGHT
+#define EE_HANDS
+
+#endif

keyboards/lets_split_vitamins/keymaps/default/keymap.c

@@ -0,0 +1,214 @@
+#include "lets_split.h"
+#include "action_layer.h"
+#include "eeconfig.h"
+
+extern keymap_config_t keymap_config;
+
+// Each layer gets a name for readability, which is then used in the keymap matrix below.
+// The underscores don't mean anything - you can have a layer called STUFF or any other name.
+// Layer names don't all need to be of the same length, obviously, and you can also skip them
+// entirely and just use numbers.
+#define _QWERTY 0
+#define _COLEMAK 1
+#define _DVORAK 2
+#define _LOWER 3
+#define _RAISE 4
+#define _ADJUST 16
+
+enum custom_keycodes {
+  QWERTY = SAFE_RANGE,
+  COLEMAK,
+  DVORAK,
+  LOWER,
+  RAISE,
+  ADJUST,
+};
+
+// Fillers to make layering more clear
+#define _______ KC_TRNS
+#define XXXXXXX KC_NO
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+/* Qwerty
+ * ,-----------------------------------------------------------------------------------.
+ * | Esc  |   Q  |   W  |   E  |   R  |   T  |   Y  |   U  |   I  |   O  |   P  | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Tab  |   A  |   S  |   D  |   F  |   G  |   H  |   J  |   K  |   L  |   ;  |  '   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | Shift|   Z  |   X  |   C  |   V  |   B  |   N  |   M  |   ,  |   .  |   /  |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | Ctrl | GUI  |  Alt |Adjust|Lower |Space |Space |Raise | Left | Down |  Up  |Right |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_QWERTY] = KEYMAP( \
+  KC_ESC,  KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,    KC_BSPC, \
+  KC_TAB,  KC_A,    KC_S,    KC_D,    KC_F,    KC_G,    KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN, KC_QUOT, \
+  KC_LSFT, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_N,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, KC_ENT , \
+  KC_LCTRL,KC_LGUI,  KC_LALT, ADJUST,  LOWER,   KC_SPC,  KC_SPC,  RAISE,   KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT \
+),
+
+/* Colemak
+ * ,-----------------------------------------------------------------------------------.
+ * | Tab  |   Q  |   W  |   F  |   P  |   G  |   J  |   L  |   U  |   Y  |   ;  | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Esc  |   A  |   R  |   S  |   T  |   D  |   H  |   N  |   E  |   I  |   O  |  '   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | Shift|   Z  |   X  |   C  |   V  |   B  |   K  |   M  |   ,  |   .  |   /  |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |Adjust| Ctrl | Alt  | GUI  |Lower |Space |Space |Raise | Left | Down |  Up  |Right |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_COLEMAK] = KEYMAP( \
+  KC_TAB,  KC_Q,    KC_W,    KC_F,    KC_P,    KC_G,    KC_J,    KC_L,    KC_U,    KC_Y,    KC_SCLN, KC_BSPC, \
+  KC_ESC,  KC_A,    KC_R,    KC_S,    KC_T,    KC_D,    KC_H,    KC_N,    KC_E,    KC_I,    KC_O,    KC_QUOT, \
+  KC_LSFT, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_K,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, KC_ENT , \
+  ADJUST,  KC_LCTL, KC_LALT, KC_LGUI, LOWER,   KC_SPC,  KC_SPC,  RAISE,   KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT \
+),
+
+/* Dvorak
+ * ,-----------------------------------------------------------------------------------.
+ * | Tab  |   '  |   ,  |   .  |   P  |   Y  |   F  |   G  |   C  |   R  |   L  | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Esc  |   A  |   O  |   E  |   U  |   I  |   D  |   H  |   T  |   N  |   S  |  /   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | Shift|   ;  |   Q  |   J  |   K  |   X  |   B  |   M  |   W  |   V  |   Z  |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |Adjust| Ctrl | Alt  | GUI  |Lower |Space |Space |Raise | Left | Down |  Up  |Right |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_DVORAK] = KEYMAP( \
+  KC_TAB,  KC_QUOT, KC_COMM, KC_DOT,  KC_P,    KC_Y,    KC_F,    KC_G,    KC_C,    KC_R,    KC_L,    KC_BSPC, \
+  KC_ESC,  KC_A,    KC_O,    KC_E,    KC_U,    KC_I,    KC_D,    KC_H,    KC_T,    KC_N,    KC_S,    KC_SLSH, \
+  KC_LSFT, KC_SCLN, KC_Q,    KC_J,    KC_K,    KC_X,    KC_B,    KC_M,    KC_W,    KC_V,    KC_Z,    KC_ENT , \
+  ADJUST,  KC_LCTL, KC_LALT, KC_LGUI, LOWER,   KC_SPC,  KC_SPC,  RAISE,   KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT \
+),
+
+/* Lower
+ * ,-----------------------------------------------------------------------------------.
+ * |   ~  |   !  |   @  |   #  |   $  |   %  |   ^  |   &  |   *  |   (  |   )  | Del  |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Del  |  F1  |  F2  |  F3  |  F4  |  F5  |  F6  |   _  |   +  |      |   \  |  |   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * |RESET |  F7  |  F8  |  F9  |  F10 |  F11 |  F12 |ISO ~ |ISO | |      |      |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      |      |             |      | Next | Vol- | Vol+ | Play |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_LOWER] = KEYMAP( \
+  KC_TILD, KC_EXLM, KC_AT,   KC_HASH, KC_DLR,  KC_PERC, KC_CIRC, KC_AMPR, KC_ASTR, KC_LPRN, KC_RPRN, KC_DEL, \
+  KC_DEL,  KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_UNDS, KC_PLUS, KC_LCBR, KC_RCBR, KC_PIPE, \
+  RESET,   KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,S(KC_NUHS),S(KC_NUBS),_______, _______, _______, \
+  _______, _______, _______, _______, _______, _______, _______, _______, KC_MNXT, KC_VOLD, KC_VOLU, KC_MPLY \
+),
+
+/* Raise
+ * ,-----------------------------------------------------------------------------------.
+ * |   `  |   1  |   2  |   3  |   4  |   5  |   6  |   7  |   8  |   9  |   0  | Del  |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Del  |  F1  |  F2  |  F3  |  F4  |  F5  |  F6  |   -  |   =  |   [  |   ]  |  \   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * |      |  F7  |  F8  |  F9  |  F10 |  F11 |  F12 |ISO # |ISO / |      |      |RESET |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      |      |             |      | Next | Vol- | Vol+ | Play |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_RAISE] = KEYMAP( \
+  KC_GRV,  KC_1,    KC_2,    KC_3,    KC_4,    KC_5,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    KC_DEL, \
+  KC_DEL,  KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_MINS, KC_EQL,  KC_LBRC, KC_RBRC, KC_BSLS, \
+  _______, KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,  KC_NUHS, KC_NUBS, _______, _______, RESET, \
+  _______, _______, _______, _______, _______, _______, _______, _______, KC_MNXT, KC_VOLD, KC_VOLU, KC_MPLY \
+),
+
+/* Adjust (Lower + Raise)
+ * ,-----------------------------------------------------------------------------------.
+ * |      | Reset|      |      |      |      |      |      |      |      |      |  Del |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * |      |      |      |Aud on|Audoff|AGnorm|AGswap|Qwerty|Colemk|Dvorak|      |      |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * |      |      |      |      |      |      |      |      |      |      |      |      |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      |      |             |      |      |      |      |      |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_ADJUST] =  KEYMAP( \
+  _______, RESET,   _______, _______, _______, _______, _______, _______, _______, _______, _______, KC_DEL, \
+  _______, _______, _______, AU_ON,   AU_OFF,  AG_NORM, AG_SWAP, QWERTY,  COLEMAK, DVORAK,  _______, _______, \
+  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, \
+  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______ \
+)
+
+
+};
+
+#ifdef AUDIO_ENABLE
+float tone_qwerty[][2]     = SONG(QWERTY_SOUND);
+float tone_dvorak[][2]     = SONG(DVORAK_SOUND);
+float tone_colemak[][2]    = SONG(COLEMAK_SOUND);
+#endif
+
+void persistent_default_layer_set(uint16_t default_layer) {
+  eeconfig_update_default_layer(default_layer);
+  default_layer_set(default_layer);
+}
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+  switch (keycode) {
+    case QWERTY:
+      if (record->event.pressed) {
+        #ifdef AUDIO_ENABLE
+          PLAY_SONG(tone_qwerty);
+        #endif
+        persistent_default_layer_set(1UL<<_QWERTY);
+      }
+      return false;
+      break;
+    case COLEMAK:
+      if (record->event.pressed) {
+        #ifdef AUDIO_ENABLE
+          PLAY_SONG(tone_colemak);
+        #endif
+        persistent_default_layer_set(1UL<<_COLEMAK);
+      }
+      return false;
+      break;
+    case DVORAK:
+      if (record->event.pressed) {
+        #ifdef AUDIO_ENABLE
+          PLAY_SONG(tone_dvorak);
+        #endif
+        persistent_default_layer_set(1UL<<_DVORAK);
+      }
+      return false;
+      break;
+    case LOWER:
+      if (record->event.pressed) {
+        layer_on(_LOWER);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      } else {
+        layer_off(_LOWER);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      }
+      return false;
+      break;
+    case RAISE:
+      if (record->event.pressed) {
+        layer_on(_RAISE);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      } else {
+        layer_off(_RAISE);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      }
+      return false;
+      break;
+    case ADJUST:
+      if (record->event.pressed) {
+        layer_on(_ADJUST);
+      } else {
+        layer_off(_ADJUST);
+      }
+      return false;
+      break;
+  }
+  return true;
+}

keyboards/lets_split_vitamins/keymaps/default/rules.mk

@@ -0,0 +1,3 @@
+ifndef QUANTUM_DIR
+	include ../../../../Makefile
+endif

keyboards/lets_split_vitamins/keymaps/fabian/config.h

@@ -0,0 +1,34 @@
+/*
+Copyright 2012 Jun Wako <wakojun@gmail.com>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+
+#define USE_SERIAL
+
+#define MASTER_LEFT
+// #define MASTER_RIGHT
+// #define EE_HANDS
+
+
+#ifdef SUBPROJECT_rev1
+    #include "../../rev1/config.h"
+#endif
+#ifdef SUBPROJECT_rev2
+    #include "../../rev2/config.h"
+#endif
+#ifdef SUBPROJECT_rev2fliphalf
+	#include "../../rev2fliphalf/config.h"
+#endif

keyboards/lets_split_vitamins/keymaps/fabian/keymap.c

@@ -0,0 +1,272 @@
+/* Copyright 2015-2017 Jack Humbert
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "lets_split.h"
+#include "action_layer.h"
+#include "eeconfig.h"
+
+extern keymap_config_t keymap_config;
+
+enum custom_layers {
+  _QWERTY,
+  _COLEMAK,
+  _DVORAK,
+  _LOWER,
+  _RAISE,
+  _PLOVER,
+  _ADJUST
+};
+
+enum custom_keycodes {
+  QWERTY = SAFE_RANGE,
+  COLEMAK,
+  DVORAK,
+  PLOVER,
+  LOWER,
+  RAISE,
+  BACKLIT,
+  EXT_PLV,
+};
+
+#define XXXXXXX KC_NO
+#define _______ KC_TRNS
+
+#define CTL_ESC CTL_T(KC_ESC)  // Tap for Escape, hold for Control
+#define HPR_TAB ALL_T(KC_TAB)  // Tap for Tab, hold for Hyper (Super+Ctrl+Alt+Shift)
+#define MEH_GRV MEH_T(KC_GRV)  // Tap for Backtick, hold for Meh (Ctrl+Alt+Shift)
+#define SFT_BSP SFT_T(KC_BSPC) // Tap for Backspace, hold for Shift
+#define SFT_ENT SFT_T(KC_ENT)  // Tap for Enter, hold for Shift
+#define SFT_SPC SFT_T(KC_SPC)  // Tap for Space, hold for Shift
+#define UMLAUT  RALT(KC_U)     // Combine Alt and U
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+/* Qwerty
+ * ,-----------------------------------------------------------------------------------.
+ * | Tab  |   Q  |   W  |   E  |   R  |   T  |   Y  |   U  |   I  |   O  |   P  | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Esc  |   A  |   S  |   D  |   F  |   G  |   H  |   J  |   K  |   L  |   ;  |  "   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | Shift|   Z  |   X  |   C  |   V  |   B  |   N  |   M  |   ,  |   .  |   /  |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | Ctrl | Meh  | Alt  | GUI  |Lower |Space | Tab  |Raise | GUI  |AltGr | Umlt | Ctrl |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_QWERTY] = KEYMAP( \
+  HPR_TAB, KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,    KC_BSPC, \
+  CTL_ESC, KC_A,    KC_S,    KC_D,    KC_F,    KC_G,    KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN, KC_QUOT, \
+  SFT_BSP, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_N,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, SFT_ENT , \
+  KC_LCTL, MEH_GRV, KC_LALT, KC_LGUI, LOWER,   KC_SPC,  HPR_TAB, RAISE,   KC_RGUI, KC_RALT, UMLAUT,  KC_RCTL \
+),
+
+/* Colemak
+ * ,-----------------------------------------------------------------------------------.
+ * | Tab  |   Q  |   W  |   F  |   P  |   G  |   J  |   L  |   U  |   Y  |   ;  | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Esc  |   A  |   R  |   S  |   T  |   D  |   H  |   N  |   E  |   I  |   O  |  "   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | Shift|   Z  |   X  |   C  |   V  |   B  |   K  |   M  |   ,  |   .  |   /  |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | Ctrl | Meh  | Alt  | GUI  |Lower |Space | Tab  |Raise | GUI  |AltGr | Umlt | Ctrl |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_COLEMAK] = KEYMAP( \
+  HPR_TAB, KC_Q,    KC_W,    KC_F,    KC_P,    KC_G,    KC_J,    KC_L,    KC_U,    KC_Y,    KC_SCLN, KC_BSPC, \
+  CTL_ESC, KC_A,    KC_R,    KC_S,    KC_T,    KC_D,    KC_H,    KC_N,    KC_E,    KC_I,    KC_O,    KC_QUOT, \
+  SFT_BSP, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_K,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, SFT_ENT , \
+  KC_LCTL, MEH_GRV, KC_LALT, KC_LGUI, LOWER,   KC_SPC,  HPR_TAB, RAISE,   KC_RGUI, KC_RALT, UMLAUT,  KC_RCTL \
+),
+
+/* Dvorak
+ * ,-----------------------------------------------------------------------------------.
+ * | Tab  |   "  |   ,  |   .  |   P  |   Y  |   F  |   G  |   C  |   R  |   L  | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Esc  |   A  |   O  |   E  |   U  |   I  |   D  |   H  |   T  |   N  |   S  |  /   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | Shift|   ;  |   Q  |   J  |   K  |   X  |   B  |   M  |   W  |   V  |   Z  |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | Ctrl | Meh  | Alt  | GUI  |Lower |Space | Tab  |Raise | GUI  |AltGr | Umlt | Ctrl |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_DVORAK] = KEYMAP( \
+  HPR_TAB, KC_QUOT, KC_COMM, KC_DOT,  KC_P,    KC_Y,    KC_F,    KC_G,    KC_C,    KC_R,    KC_L,    KC_BSPC, \
+  CTL_ESC, KC_A,    KC_O,    KC_E,    KC_U,    KC_I,    KC_D,    KC_H,    KC_T,    KC_N,    KC_S,    KC_SLSH, \
+  SFT_BSP, KC_SCLN, KC_Q,    KC_J,    KC_K,    KC_X,    KC_B,    KC_M,    KC_W,    KC_V,    KC_Z,    SFT_ENT , \
+  KC_LCTL, MEH_GRV, KC_LALT, KC_LGUI, LOWER,   KC_SPC,  HPR_TAB, RAISE,   KC_RGUI, KC_RALT, UMLAUT,  KC_RCTL \
+),
+
+/* Lower
+ * ,-----------------------------------------------------------------------------------.
+ * |   ~  |   !  |   @  |   #  |   $  |   %  |   ^  |   &  |   *  |   (  |   )  | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Del  |  F1  |  F2  |  F3  |  F4  |  F5  |  F6  |   _  |   +  |   {  |   }  |  |   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * |      |  F7  |  F8  |  F9  |  F10 |  F11 |  F12 | MS L | MS D |MS U  | MS R |MS Btn|
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      |      |      |      |      | Next | Vol- | Vol+ | Play |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_LOWER] = KEYMAP( \
+  KC_TILD, KC_EXLM, KC_AT,   KC_HASH, KC_DLR,  KC_PERC, KC_CIRC, KC_AMPR, KC_ASTR, KC_LPRN, KC_RPRN, KC_BSPC, \
+  KC_DEL,  KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_UNDS, KC_PLUS, KC_LCBR, KC_RCBR, KC_PIPE, \
+  _______, KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,  KC_MS_L, KC_MS_D, KC_MS_U, KC_MS_R, KC_BTN1, \
+  _______, _______, _______, _______, _______, _______, _______, _______, KC_MNXT, KC_VOLD, KC_VOLU, KC_MPLY \
+),
+
+/* Raise
+ * ,-----------------------------------------------------------------------------------.
+ * |   `  |   1  |   2  |   3  |   4  |   5  |   6  |   7  |   8  |   9  |   0  | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Del  |  F1  |  F2  |  F3  |  F4  |  F5  |  F6  |   -  |   =  |   [  |   ]  |  \   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * |      |  F7  |  F8  |  F9  |  F10 |  F11 |  F12 | Left | Down |  Up  | Rght |MS_BN2|
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      |      |      |      |      | Next | Vol- | Vol+ | Play |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_RAISE] = KEYMAP( \
+  KC_GRV,  KC_1,    KC_2,    KC_3,    KC_4,    KC_5,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    KC_BSPC, \
+  KC_DEL,  KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_MINS, KC_EQL,  KC_LBRC, KC_RBRC, KC_BSLS, \
+  _______, KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,  KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT, KC_BTN2, \
+  _______, _______, _______, _______, _______, _______, _______, _______, KC_MNXT, KC_VOLD, KC_VOLU, KC_MPLY \
+),
+
+/* Plover layer (http://opensteno.org)
+ * ,-----------------------------------------------------------------------------------.
+ * |   #  |   #  |   #  |   #  |   #  |   #  |   #  |   #  |   #  |   #  |   #  |   #  |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * |      |   S  |   T  |   P  |   H  |   *  |   *  |   F  |   P  |   L  |   T  |   D  |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * |      |   S  |   K  |   W  |   R  |   *  |   *  |   R  |   B  |   G  |   S  |   Z  |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | Exit |      |      |   A  |   O  |      |      |   E  |   U  |      |      |      |
+ * `-----------------------------------------------------------------------------------'
+ */
+
+[_PLOVER] = KEYMAP( \
+  KC_1,    KC_1,    KC_1,    KC_1,    KC_1,    KC_1,    KC_1,    KC_1,    KC_1,    KC_1,    KC_1,    KC_1,    \
+  XXXXXXX, KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,    KC_LBRC, \
+  XXXXXXX, KC_A,    KC_S,    KC_D,    KC_F,    KC_G,    KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN, KC_QUOT, \
+  EXT_PLV, XXXXXXX, XXXXXXX, KC_C,    KC_V,    XXXXXXX, XXXXXXX, KC_N,    KC_M,    XXXXXXX, XXXXXXX, XXXXXXX  \
+),
+
+/* Adjust (Lower + Raise)
+ * ,-----------------------------------------------------------------------------------.
+ * |      | Reset|      |      |      |      |      |      |      |      | Reset|  Del |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * |      |      |      |Aud on|Audoff|AGnorm|AGswap|Qwerty|Colemk|Dvorak|Plover|      |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * |      |Voice-|Voice+|Mus on|Musoff|MIDIon|MIDIof|      |      |      |      |      |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      |      |      |      |      |      |      |      |      |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_ADJUST] = KEYMAP( \
+  _______, RESET,   _______, _______, _______, _______, _______, _______, _______, _______, RESET,   KC_DEL , \
+  _______, _______, MU_MOD,  AU_ON,   AU_OFF,  AG_NORM, AG_SWAP, QWERTY,  COLEMAK, DVORAK,  PLOVER,  _______, \
+  _______, MUV_DE,  MUV_IN,  MU_ON,   MU_OFF,  MI_ON,   MI_OFF,  _______, _______, _______, _______, _______, \
+  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______ \
+)
+
+};
+
+#ifdef AUDIO_ENABLE
+  float plover_song[][2]     = SONG(PLOVER_SOUND);
+  float plover_gb_song[][2]  = SONG(PLOVER_GOODBYE_SOUND);
+#endif
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+  switch (keycode) {
+    case QWERTY:
+      if (record->event.pressed) {
+        set_single_persistent_default_layer(_QWERTY);
+      }
+      return false;
+      break;
+    case COLEMAK:
+      if (record->event.pressed) {
+        set_single_persistent_default_layer(_COLEMAK);
+      }
+      return false;
+      break;
+    case DVORAK:
+      if (record->event.pressed) {
+        set_single_persistent_default_layer(_DVORAK);
+      }
+      return false;
+      break;
+    case LOWER:
+      if (record->event.pressed) {
+        layer_on(_LOWER);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      } else {
+        layer_off(_LOWER);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      }
+      return false;
+      break;
+    case RAISE:
+      if (record->event.pressed) {
+        layer_on(_RAISE);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      } else {
+        layer_off(_RAISE);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      }
+      return false;
+      break;
+    case BACKLIT:
+      if (record->event.pressed) {
+        register_code(KC_RSFT);
+        #ifdef BACKLIGHT_ENABLE
+          backlight_step();
+        #endif
+      } else {
+        unregister_code(KC_RSFT);
+      }
+      return false;
+      break;
+    case PLOVER:
+      if (record->event.pressed) {
+        #ifdef AUDIO_ENABLE
+          stop_all_notes();
+          PLAY_SONG(plover_song);
+        #endif
+        layer_off(_RAISE);
+        layer_off(_LOWER);
+        layer_off(_ADJUST);
+        layer_on(_PLOVER);
+        if (!eeconfig_is_enabled()) {
+            eeconfig_init();
+        }
+        keymap_config.raw = eeconfig_read_keymap();
+        keymap_config.nkro = 1;
+        eeconfig_update_keymap(keymap_config.raw);
+      }
+      return false;
+      break;
+    case EXT_PLV:
+      if (record->event.pressed) {
+        #ifdef AUDIO_ENABLE
+          PLAY_SONG(plover_gb_song);
+        #endif
+        layer_off(_PLOVER);
+      }
+      return false;
+      break;
+  }
+  return true;
+}

keyboards/lets_split_vitamins/keymaps/fabian/rules.mk

@@ -0,0 +1,9 @@
+# Build Options
+#   change to "no" to disable the options, or define them in the Makefile in 
+#   the appropriate keymap folder that will get included automatically
+#
+# UNICODE_ENABLE = yes
+
+ifndef QUANTUM_DIR
+	include ../../../../Makefile
+endif

keyboards/lets_split_vitamins/keymaps/heartrobotninja/config.h

@@ -0,0 +1,58 @@
+/*
+This is the c configuration file for the keymap
+
+Copyright 2012 Jun Wako <wakojun@gmail.com>
+Copyright 2015 Jack Humbert
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef CONFIG_USER_H
+#define CONFIG_USER_H
+
+#include "../../config.h"
+
+/* Use I2C or Serial, not both */
+
+#define USE_SERIAL
+
+/* Select hand configuration */
+
+// #define MASTER_LEFT
+// #define MASTER_RIGHT
+#define EE_HANDS
+
+#define ONESHOT_TAP_TOGGLE 2
+#define ONESHOT_TIMEOUT 1000
+
+#undef LEADER_TIMEOUT
+#define LEADER_TIMEOUT 1000
+
+#undef TAPPING_TERM
+#define TAPPING_TERM 200
+
+#undef TAPPING_TOGGLE
+#define TAPPING_TOGGLE 2
+
+#ifdef SUBPROJECT_rev1
+#include "../../rev1/config.h"
+#endif
+#ifdef SUBPROJECT_rev2
+#include "../../rev2/config.h"
+#endif
+#ifdef SUBPROJECT_rev2fliphalf
+#include "../../rev2fliphalf/config.h"
+#endif
+
+#endif

keyboards/lets_split_vitamins/keymaps/heartrobotninja/keymap.c

@@ -0,0 +1,183 @@
+#include "lets_split.h"
+#include "action_layer.h"
+#include "action_util.h"
+#include "debug.h"
+#include "eeconfig.h"
+
+extern keymap_config_t keymap_config;
+
+// Each layer gets a name for readability, which is then used in the keymap matrix below.
+// The underscores don't mean anything - you can have a layer called STUFF or any other name.
+// Layer names don't all need to be of the same length, obviously, and you can also skip them
+// entirely and just use numbers.
+#define _COLE 0
+#define _LOWER 1
+#define _RAISE 2
+#define _AUX 16
+
+/* Layers */
+enum
+{
+  COLE = 0,
+  LOWER, // right hand 10 key.
+  RAISE, // left hand Fn, right hand symbols.
+  AUX,
+};
+
+/* Tap Dancery */
+enum
+{
+  TD_BTK,
+  TD_TDE,
+  TD_LPRN,
+  TD_RPRN,
+  TD_MIN,
+  TD_USC,
+};
+
+bool time_travel = false;
+
+// Fillers to make layering more clear
+#define ____ KC_TRNS
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+        /* Colemak
+ * ,-----------------------------------------------------------------------------------.
+ * | ' " `|   Q  |   W  |   F  |   P  |   G  |   J  |   L  |   U  |   Y  |  = + | ~ ; :|
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | ( [ {|   A  |   R  |   S  |   T  |   D  |   H  |   N  |   E  |   I  |   O  | ) ] }|
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | - , <|   Z  |   X  |   C  |   V  |   B  |   K  |   M  |   ?  |   |  |   ^  | _ . >|
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |Lower |Raise | Ctrl | Alt  | Bksp | Spc  |Enter |LShft | ESC  |  <   |   v  |   >  |
+ * `-----------------------------------------------------------------------------------'
+ */
+        [_COLE] = KEYMAP(
+            TD(TD_BTK), KC_Q, KC_W, KC_F, KC_P, KC_G, KC_J, KC_L, KC_U, KC_Y, KC_EQL, TD(TD_TDE),
+            TD(TD_LPRN), KC_A, KC_R, KC_S, KC_T, KC_D, KC_H, KC_N, KC_E, KC_I, KC_O, TD(TD_RPRN),
+            TD(TD_MIN), KC_Z, KC_X, KC_C, KC_V, KC_B, KC_K, KC_M, KC_SLSH, KC_BSLS, KC_UP, TD(TD_USC),
+            LOWER, RAISE, OSM(MOD_LCTL), OSM(MOD_LALT), KC_SPC, KC_BSPC, KC_ENT, OSM(MOD_LSFT), KC_ESC, KC_LEFT, KC_DOWN, KC_RGHT),
+
+        /* Lower
+ * ,-----------------------------------------------------------------------------------.
+ * | ---- | ---- | ---- | ---- | ---- | ---- |   7  |   8  |   9  |   *  |   /  |   ^  |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | ---- | ---- | ---- | ---- | ---- | ---- |  4   |   5  |   6  |   +  |   -  | ---- |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | ---- | ---- | ---- | ---- | ---- | ---- |  1   |   2  |   3  |   =  | ---- | ---- |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | ---- | ---- | ---- | ---- | ---- | ---- | ---- |   0  |   .  | ---- | ---- | ---- |
+ * `-----------------------------------------------------------------------------------'
+ */
+        [_LOWER] = KEYMAP(
+            ____, ____, ____, ____, ____, ____, KC_7, KC_8, KC_9, KC_PAST, KC_PSLS, KC_CIRC,
+            ____, ____, ____, ____, ____, ____, KC_4, KC_5, KC_6, KC_PPLS, KC_PMNS, ____,
+            ____, ____, ____, ____, ____, ____, KC_1, KC_2, KC_3, KC_PEQL, ____, ____,
+            ____, ____, ____, ____, ____, ____, ____, KC_0, KC_MNXT, ____, ____, ____),
+
+        /* Raise
+ * ,-----------------------------------------------------------------------------------.
+ * |  F1  |  F2  |  F3  |   F4  |  F5  |  F6 |   !  |   @  |   #  |   $  |   %  |  ` ~ |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * |  F7  |  F8  |  F9  |  F10 |  F11 |  F12 |   ^  |   &  |   *  |   (  |   )  |  - _ |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | ____ | ____ | ____ | ____ | ____ | ____ |  [ { |  ] } |  \ | |  ; : | ' "  |  = + |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | ____ | ____ | ____ | ____ | ____ | ____ | ____ | ____ | ____ |  , < | . >  |  / ? |
+ * `-----------------------------------------------------------------------------------'
+ */
+        [_RAISE] = KEYMAP(
+            KC_F1, KC_F2, KC_F3, KC_F4, KC_F5, KC_F6, KC_EXLM, KC_AT, KC_HASH, KC_DLR, KC_PERC, KC_GRV,
+            KC_F7, KC_F8, KC_F9, KC_F10, KC_F11, KC_F12, KC_CIRC, KC_AMPR, KC_ASTR, KC_LPRN, KC_RPRN, KC_MINS,
+            KC_F7, KC_F8, KC_F9, KC_F10, KC_F11, KC_F12, KC_LBRC, KC_RBRC, KC_BSLS, KC_SCLN, KC_QUOT, KC_EQL,
+            ____, ____, ____, ____, ____, ____, ____, ____, ____, KC_COMM, KC_DOT, KC_SLSH),
+
+        /* Adjust (Lower + Raise)
+ * ,-----------------------------------------------------------------------------------.
+ * | Reset| ____ | ____ | ____ | ____ | ____ | ____ | LOCK | ____ | ____ | ____ | VUP  |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | ____ | ____ |  RUN | ____ | ____ | ____ | ____ | ____ | ____ | ____ | ____ | VDWN |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | ____ | ____ | ____ | ____ | ____ | ____ | ____ | ____ | ____ | ____ | PGUP | MUTE |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | ____ | ____ | ____ | ____ | ____ | ____ | ____ | ____ | ____ | HOME | PGDN | END  |
+ * `-----------------------------------------------------------------------------------'
+ */
+        [_AUX] = KEYMAP(
+            RESET, ____, ____, ____, ____, ____, ____, LGUI(KC_L), ____, ____, ____, KC_VOLU,
+            ____, ____, LGUI(KC_R), ____, ____, ____, ____, ____, ____, ____, ____, KC_VOLD,
+            ____, ____, ____, ____, ____, ____, ____, ____, ____, ____, KC_PGUP, KC_MUTE,
+            ____, ____, ____, ____, KC_TAB, KC_DEL, ____, ____, ____, KC_HOME, KC_PGDOWN, KC_END)
+
+};
+
+qk_tap_dance_action_t tap_dance_actions[] = {
+        [TD_BTK] = ACTION_TAP_DANCE_DOUBLE(KC_QUOT, KC_GRV),
+        [TD_TDE] = ACTION_TAP_DANCE_DOUBLE(KC_SCLN, KC_TILD),
+        [TD_LPRN] = ACTION_TAP_DANCE_DOUBLE(KC_LBRC, KC_LPRN),
+        [TD_RPRN] = ACTION_TAP_DANCE_DOUBLE(KC_RBRC, KC_RPRN),
+        [TD_MIN] = ACTION_TAP_DANCE_DOUBLE(KC_COMM, KC_MINS),
+        [TD_USC] = ACTION_TAP_DANCE_DOUBLE(KC_DOT, KC_UNDS)};
+
+void persistent_default_layer_set(uint16_t default_layer)
+{
+  eeconfig_update_default_layer(default_layer);
+  default_layer_set(default_layer);
+};
+
+void matrix_scan_user(void){};
+
+void matrix_init_user(void){};
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record)
+{
+  switch (keycode)
+  {
+  case COLE:
+    if (record->event.pressed)
+    {
+      persistent_default_layer_set(1UL << _COLE);
+    }
+    return false;
+    break;
+  case LOWER:
+    if (record->event.pressed)
+    {
+      layer_on(_LOWER);
+      update_tri_layer(_LOWER, _RAISE, _AUX);
+    }
+    else
+    {
+      layer_off(_LOWER);
+      update_tri_layer(_LOWER, _RAISE, _AUX);
+    }
+    return false;
+    break;
+  case RAISE:
+    if (record->event.pressed)
+    {
+      layer_on(_RAISE);
+      update_tri_layer(_LOWER, _RAISE, _AUX);
+    }
+    else
+    {
+      layer_off(_RAISE);
+      update_tri_layer(_LOWER, _RAISE, _AUX);
+    }
+    return false;
+    break;
+  case AUX:
+    if (record->event.pressed)
+    {
+      layer_on(_AUX);
+    }
+    else
+    {
+      layer_off(_AUX);
+    }
+    return false;
+    break;
+  }
+  return true;
+}

keyboards/lets_split_vitamins/keymaps/heartrobotninja/rules.mk

@@ -0,0 +1,26 @@
+# Build Options
+#   change to "no" to disable the options, or define them in the Makefile in
+#   the appropriate keymap folder that will get included automatically
+#
+BOOTMAGIC_ENABLE = no       # Virtual DIP switch configuration(+1000)
+MOUSEKEY_ENABLE = no       # Mouse keys(+4700)
+EXTRAKEY_ENABLE = yes       # Audio control and System control(+450)
+CONSOLE_ENABLE = no         # Console for debug(+400)
+COMMAND_ENABLE = no        # Commands for debug and configuration
+TAP_DANCE_ENABLE = yes
+NKRO_ENABLE = yes            # Nkey Rollover - if this doesn't work, see here: https://github.com/tmk/tmk_keyboard/wiki/FAQ#nkro-doesnt-work
+BACKLIGHT_ENABLE = no      # Enable keyboard backlight functionality
+MIDI_ENABLE = no            # MIDI controls
+AUDIO_ENABLE = no           # Audio output on port C6
+UNICODE_ENABLE = no         # Unicode
+BLUETOOTH_ENABLE = no       # Enable Bluetooth with the Adafruit EZ-Key HID
+RGBLIGHT_ENABLE = no        # Enable WS2812 RGB underlight.  Do not enable this with audio at the same time.
+ONEHAND_ENABLE = no        # Enable one-hand typing
+
+# Do not enable SLEEP_LED_ENABLE. it uses the same timer as BACKLIGHT_ENABLE
+SLEEP_LED_ENABLE = no    # Breathing sleep LED during USB suspend
+
+ifndef QUANTUM_DIR
+	include ../../../../Makefile
+endif
+

keyboards/lets_split_vitamins/keymaps/henxing/Readme.md

@@ -0,0 +1,51 @@
+# Let's Split the Atreus
+
+This keymap is a port of the Atreus keymap to the Let's Split keyboard, using a
+similar method of handling layer switches as the `default` keymap.
+
+
+# Layers
+
+The following tables are the layers as implemented.
+
+### Underscores in Layer
+
+Any underscore represents a key that is mapped to `KC_NO`, or no keypress. The
+2x3 block in the middle is like this because the Atreus does not have any keys
+there. It has been left blank for the user to add her own special keypresses or
+macros that she finds useful to have on that particular layer.
+
+
+## `_QWERTY`
+
+```c
+/*
+ *  q   w   e    r    t    _    _    y   u   i  o   p
+ *  a   s   d    f    g    _    _    h   j   k  l   ;
+ *  z   x   c    v    b    _    _    n   m   ,  .   /
+ * esc tab gui shift bksp ctrl alt space fn  -  ' enter
+ */
+ ```
+
+
+## `_LOWER`
+
+```c
+/*
+ *  !       @     up     {    }    _     _  pgup    7     8     9    *
+ *  #     left   down  right  $    _     _  pgdn    4     5     6    +
+ *  [       ]      (     )    &    _     _    `     1     2     3    \
+ * lower  insert  gui  shift bksp ctrl  alt space   fn    .     0    =
+ */
+ ```
+
+## `_RAISE`
+
+```c
+/*
+ * insert home   up   end  pgup   _     _   up     F7    F8    F9   F10
+ *  del   left  down right pgdn   _     _  down    F4    F5    F6   F11
+ *   _   volup    _    _   reset  _     _          F1    F2    F3   F12
+ *   _   voldn super shift bksp  ctrl  alt space   L0  prtsc scroll pause
+ */
+ ```

keyboards/lets_split_vitamins/keymaps/henxing/config.h

@@ -0,0 +1,37 @@
+/*
+This is the c configuration file for the keymap
+
+Copyright 2012 Jun Wako <wakojun@gmail.com>
+Copyright 2015 Jack Humbert
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef CONFIG_USER_H
+#define CONFIG_USER_H
+
+#include "../../config.h"
+
+/* Use I2C or Serial, not both */
+
+#define USE_SERIAL
+// #define USE_I2C
+
+/* Select hand configuration */
+
+#define MASTER_LEFT
+// #define MASTER_RIGHT
+// #define EE_HANDS
+
+#endif

keyboards/lets_split_vitamins/keymaps/henxing/keymap.c

@@ -0,0 +1,114 @@
+#include "lets_split.h"
+#include "action_layer.h"
+#include "eeconfig.h"
+
+extern keymap_config_t keymap_config;
+
+// Each layer gets a name for readability, which is then used in the keymap matrix below.
+// The underscores don't mean anything - you can have a layer called STUFF or any other name.
+// Layer names don't all need to be of the same length, obviously, and you can also skip them
+// entirely and just use numbers.
+#define _QWERTY 0
+#define _LOWER 1
+#define _RAISE 2
+
+enum custom_keycodes {
+    QWERTY = SAFE_RANGE,
+    LOWER,
+    RAISE
+};
+
+// Fillers to make layering more clear
+#define _______ KC_TRNS
+#define XXXXXXX KC_NO
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+    /*
+     *  q   w   e    r    t    _    _    y   u   i  o   p
+     *  a   s   d    f    g    _    _    h   j   k  l   ;
+     *  z   x   c    v    b    _    _    n   m   ,  .   /
+     * esc tab gui shift bksp ctrl alt space fn  -  ' enter
+     */
+    [_QWERTY] = KEYMAP( \
+            KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,    KC_NO,   KC_NO,   KC_Y,    KC_U,     KC_I,    KC_O,    KC_P,    \
+            KC_A,    KC_S,    KC_D,    KC_F,    KC_G,    KC_NO,   KC_NO,   KC_H,    KC_J,     KC_K,    KC_L,    KC_SCLN, \
+            KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_NO,   KC_NO,   KC_N,    KC_M,     KC_COMM, KC_DOT,  KC_SLSH, \
+            KC_ESC, KC_TAB, KC_LGUI,  KC_LSFT,  KC_BSPC, KC_LCTL, KC_LALT, KC_SPC,  LOWER,    KC_MINS, KC_QUOT, KC_ENT   \
+            ),
+
+    /*
+     *  !       @     up     {    }    _     _  pgup    7     8     9    *
+     *  #     left   down  right  $    _     _  pgdn    4     5     6    +
+     *  [       ]      (     )    &    _     _    `     1     2     3    \
+     * lower  insert  gui  shift bksp ctrl  alt space   fn    .     0    =
+     */
+    [_LOWER] = KEYMAP( \
+            KC_EXLM,  KC_AT,   KC_UP,   KC_LCBR, KC_RCBR, KC_NO,   KC_NO,   KC_PGUP, KC_7,    KC_8,   KC_9, KC_ASTR, \
+            KC_HASH,  KC_LEFT, KC_DOWN, KC_RGHT, KC_DEL,  KC_NO,   KC_NO,   KC_PGDN, KC_4,    KC_5,   KC_6, KC_PLUS, \
+            KC_LBRC,  KC_RBRC, KC_LPRN, KC_RPRN, KC_AMPR, KC_NO,   KC_NO,   KC_GRV,  KC_1,    KC_2,   KC_3, KC_BSLS, \
+            RAISE,    KC_INS,  KC_LGUI, KC_LSFT, KC_BSPC, KC_LCTL, KC_LALT, KC_SPC,  KC_TRNS, KC_DOT, KC_0, KC_EQL   \
+            ),
+
+    /*
+     * insert home   up   end  pgup   _     _   up     F7    F8    F9   F10
+     *  del   left  down right pgdn   _     _  down    F4    F5    F6   F11
+     *   _   volup    _    _   reset  _     _          F1    F2    F3   F12
+     *   _   voldn super shift bksp  ctrl  alt space   L0  prtsc scroll pause
+     */
+    [_RAISE] = KEYMAP( \
+            KC_INS,  KC_HOME, KC_UP,   KC_END,  KC_PGUP, KC_NO,   KC_NO,   KC_UP,   KC_F7,    KC_F8,   KC_F9,   KC_F10, \
+            KC_DEL,  KC_LEFT, KC_DOWN, KC_RGHT, KC_PGDN, KC_NO,   KC_NO,   KC_DOWN, KC_F4,    KC_F5,   KC_F6,   KC_F11, \
+            KC_TRNS, KC_VOLU, KC_TRNS, KC_TRNS, RESET,   KC_NO,   KC_NO,   KC_TRNS, KC_F1,    KC_F2,   KC_F3,   KC_F12, \
+            KC_NO,   KC_VOLD, KC_LGUI, KC_LSFT, KC_BSPC, KC_LCTL, KC_LALT, KC_SPC,  QWERTY,   KC_PSCR, KC_SLCK, KC_PAUS \
+            )
+
+};
+
+#ifdef AUDIO_ENABLE
+float tone_qwerty[][2]     = SONG(QWERTY_SOUND);
+float tone_dvorak[][2]     = SONG(DVORAK_SOUND);
+float tone_colemak[][2]    = SONG(COLEMAK_SOUND);
+#endif
+
+void persistent_default_layer_set(uint16_t default_layer) {
+    eeconfig_update_default_layer(default_layer);
+    default_layer_set(default_layer);
+}
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+
+    // The value to return
+    bool return_value = false;
+
+    switch (keycode) {
+        case QWERTY:
+            if (record->event.pressed) {
+#ifdef AUDIO_ENABLE
+                PLAY_SONG(tone_qwerty);
+#endif
+                persistent_default_layer_set(1UL<<_QWERTY);
+            }
+            break;
+
+        case LOWER:
+            if (record->event.pressed) {
+                layer_on(_LOWER);
+            } else {
+                layer_off(_LOWER);
+            }
+            break;
+
+        case RAISE:
+            persistent_default_layer_set(1UL<<_RAISE);
+            break;
+        default:
+
+            // If the keycode is not handled by any of the other cases, we
+            // should return true
+            return_value = true;
+            break;
+    }
+
+    return return_value;
+}

keyboards/lets_split_vitamins/keymaps/hexwire/README.md

@@ -0,0 +1,108 @@
+Hexwire's Let's Split Layout
+============================
+
+### Changes from default layout
+
+- Main layer
+    - The right space bar key has been changed to backspace, as I only hit space with my left thumb
+    - Backtick is at the lower right and also serves goes to the 3rd function layer when held
+    - Enter key acts as shift when held
+    - Escape key acts as control when held
+    - Minus key at upper right
+- Lower layer
+    - Numbers are on the lower layer, to make it easier to use a numpad on the right hand
+    - Arrow keys
+    - Straight and curly brackets in the middle two columns
+    - Screenshot keys for MacOS
+- Upper layer
+    - Symbols are on the upper layer
+    - Media keys
+    - Page Up/Down, Home/End
+- 3rd function layer
+    - Function keys
+
+## Layouts
+
+### Qwerty
+
+```
+,----+----+----+----+----+----.    ,----+----+----+----+----+----.
+ TAB , Q  , W  , E  , R  , T  ,      Y  , U  , I  , O  , P  ,MINS,
+|----+----+----+----+----+----|    |----+----+----+----+----+----|
+  X0 , A  , S  , D  , F  , G  ,      H  , J  , K  , L  ,SCLN,QUOT,
+|----+----+----+----+----+----|    |----+----+----+----+----+----|
+ LSFT, Z  , X  , C  , V  , B  ,      N  , M  ,COMM,DOT ,SLSH, X4 ,
+|----+----+----+----+----+----|    |----+----+----+----+----+----|
+  X3 ,LCTL,LALT,LGUI, X1 ,SPC ,     BSPC, X2 ,LEFT,DOWN, UP ,RGHT
+`----+----+----+----+----+----'    `----+----+----+----+----+----'
+```
+
+### Colemak
+
+```
+,----+----+----+----+----+----.    ,----+----+----+----+----+----.
+ TAB , Q  , W  , F  , P  , G  ,      J  , L  , U  , Y  ,SCLN,MINS,
+|----+----+----+----+----+----|    |----+----+----+----+----+----|
+  X0 , A  , R  , S  , T  , D  ,      H  , N  , E  , I  , O  ,QUOT,
+|----+----+----+----+----+----|    |----+----+----+----+----+----|
+ LSFT, Z  , X  , C  , V  , B  ,      K  , M  ,COMM,DOT ,SLSH, X4 ,
+|----+----+----+----+----+----|    |----+----+----+----+----+----|
+  X3 ,LCTL,LALT,LGUI, X1 ,SPC ,     BSPC, X2 ,LEFT,DOWN, UP ,RGHT
+`----+----+----+----+----+----'    `----+----+----+----+----+----'
+```
+
+### Dvorak
+
+```
+,----+----+----+----+----+----.    ,----+----+----+----+----+----.
+ TAB ,QUOT,COMM,DOT , P  , Y  ,      F  , G  , C  , R  , L  ,MINS,
+|----+----+----+----+----+----|    |----+----+----+----+----+----|
+  X0 , A  , O  , E  , U  , I  ,      D  , H  , R  , N  , S  ,SLSH,
+|----+----+----+----+----+----|    |----+----+----+----+----+----|
+ LSFT,SCLN, Q  , J  , K  , X  ,      B  , M  , W  , V  , Z  , X4 ,
+|----+----+----+----+----+----|    |----+----+----+----+----+----|
+  X3 ,LCTL,LALT,LGUI, X1 ,SPC ,     BSPC, X2 ,LEFT,DOWN, UP ,RGHT
+`----+----+----+----+----+----'    `----+----+----+----+----+----'
+```
+
+### Lower
+
+```
+,----+----+----+----+----+----.    ,----+----+----+----+----+----.
+     , 1  , 2  , 3  , 4  , 5  ,      6  , 7  , 8  , 9  , 0  ,    ,
+|----+----+----+----+----+----|    |----+----+----+----+----+----|
+ DEL ,CAPP,LEFT,RGHT, UP ,LBRC,     RBRC, P4 , P5 , P6 ,PLUS,PIPE,
+|----+----+----+----+----+----|    |----+----+----+----+----+----|
+     ,CPYP,    ,    ,DOWN,LCBR,     RCBR, P1 , P2 , P3 ,MINS,    ,
+|----+----+----+----+----+----|    |----+----+----+----+----+----|
+     ,    ,    ,    ,    ,    ,     DEL ,    , P0 ,PDOT,    ,
+`----+----+----+----+----+----'    `----+----+----+----+----+----'
+```
+
+### Raise
+
+```
+,----+----+----+----+----+----.    ,----+----+----+----+----+----.
+     ,EXLM, AT ,HASH,DLR ,PERC,     CIRC,AMPR,ASTR,LPRN,RPRN,    ,
+|----+----+----+----+----+----|    |----+----+----+----+----+----|
+ DEL ,MPRV,MNXT,VOLU,PGUP,UNDS,     EQL ,HOME,    ,    ,    ,BSLS,
+|----+----+----+----+----+----|    |----+----+----+----+----+----|
+ MUTE,MSTP,MPLY,VOLD,PGDN,MINS,     PLUS,END ,    ,    ,    ,    ,
+|----+----+----+----+----+----|    |----+----+----+----+----+----|
+     ,    ,    ,    ,    ,    ,         ,    ,    ,    ,    ,    
+`----+----+----+----+----+----'    `----+----+----+----+----+----'
+```
+
+### 3rd function layer
+
+```
+,----+----+----+----+----+----.    ,----+----+----+----+----+----.
+ F12 , F1 , F2 , F3 , F4 , F5 ,      F6 , F7 , F8 , F9 ,F10 ,F11 ,
+|----+----+----+----+----+----|    |----+----+----+----+----+----|
+     ,    ,    ,    ,    ,    ,         ,    ,    ,    ,    ,    ,
+|----+----+----+----+----+----|    |----+----+----+----+----+----|
+     ,    ,    ,    ,    ,    ,         ,    ,    ,    ,    ,    ,
+|----+----+----+----+----+----|    |----+----+----+----+----+----|
+     ,    ,    ,    ,    ,    ,         ,    ,    ,    ,    ,   
+`----+----+----+----+----+----'    `----+----+----+----+----+----'
+```

keyboards/lets_split_vitamins/keymaps/hexwire/config.h

@@ -0,0 +1,26 @@
+#ifndef CONFIG_USER_H
+#define CONFIG_USER_H
+
+#include "../../config.h"
+
+/* Use I2C or Serial, not both */
+
+#define USE_SERIAL
+// #define USE_I2C
+
+/* Select hand configuration */
+
+#define MASTER_LEFT
+// #define MASTER_RIGHT
+// #define EE_HANDS
+
+#define TAPPING_TERM 150
+
+#undef RGBLED_NUM
+#define RGBLIGHT_ANIMATIONS
+#define RGBLED_NUM 8
+#define RGBLIGHT_HUE_STEP 8
+#define RGBLIGHT_SAT_STEP 8
+#define RGBLIGHT_VAL_STEP 8
+
+#endif

keyboards/lets_split_vitamins/keymaps/hexwire/keymap.c

@@ -0,0 +1,205 @@
+#include "lets_split.h"
+#include "action_layer.h"
+#include "eeconfig.h"
+
+extern keymap_config_t keymap_config;
+
+#define _QWERTY 0
+#define _COLEMAK 1
+#define _DVORAK 2
+#define _LOWER 3
+#define _RAISE 4
+#define _FN3 5
+#define _FN4 6
+#define _ADJUST 16
+
+enum custom_keycodes {
+  QWERTY = SAFE_RANGE,
+  COLEMAK,
+  DVORAK,
+  LOWER,
+  RAISE,
+  FN3,
+  FN4,
+  ADJUST,
+};
+
+#define KC_ KC_TRNS
+#define _______ KC_TRNS
+
+#define KC_CAPW LGUI(LSFT(KC_3))        // Capture whole screen
+#define KC_CPYW LGUI(LSFT(LCTL(KC_3)))  // Copy whole screen
+#define KC_CAPP LGUI(LSFT(KC_4))        // Capture portion of screen
+#define KC_CPYP LGUI(LSFT(LCTL(KC_4)))  // Copy portion of screen
+#define KC_X0 MT(MOD_LCTL, KC_ESC)
+#define KC_X1 LOWER
+#define KC_X2 RAISE
+#define KC_X3 LT(_FN3, KC_GRV)
+#define KC_X4 MT(MOD_LSFT, KC_ENT)
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+  [_QWERTY] = KC_KEYMAP(
+  //,----+----+----+----+----+----.    ,----+----+----+----+----+----.
+     TAB , Q  , W  , E  , R  , T  ,      Y  , U  , I  , O  , P  ,MINS,
+  //|----+----+----+----+----+----|    |----+----+----+----+----+----|
+      X0 , A  , S  , D  , F  , G  ,      H  , J  , K  , L  ,SCLN,QUOT,
+  //|----+----+----+----+----+----|    |----+----+----+----+----+----|
+     LSFT, Z  , X  , C  , V  , B  ,      N  , M  ,COMM,DOT ,SLSH, X4 ,
+  //|----+----+----+----+----+----|    |----+----+----+----+----+----|
+      X3 ,LCTL,LALT,LGUI, X1 ,SPC ,     BSPC, X2 ,LEFT,DOWN, UP ,RGHT
+  //`----+----+----+----+----+----'    `----+----+----+----+----+----'
+  ),
+
+  [_COLEMAK] = KC_KEYMAP(
+  //,----+----+----+----+----+----.    ,----+----+----+----+----+----.
+     TAB , Q  , W  , F  , P  , G  ,      J  , L  , U  , Y  ,SCLN,MINS,
+  //|----+----+----+----+----+----|    |----+----+----+----+----+----|
+      X0 , A  , R  , S  , T  , D  ,      H  , N  , E  , I  , O  ,QUOT,
+  //|----+----+----+----+----+----|    |----+----+----+----+----+----|
+     LSFT, Z  , X  , C  , V  , B  ,      K  , M  ,COMM,DOT ,SLSH, X4 ,
+  //|----+----+----+----+----+----|    |----+----+----+----+----+----|
+      X3 ,LCTL,LALT,LGUI, X1 ,SPC ,     BSPC, X2 ,LEFT,DOWN, UP ,RGHT
+  //`----+----+----+----+----+----'    `----+----+----+----+----+----'
+  ),
+
+  [_DVORAK] = KC_KEYMAP(
+  //,----+----+----+----+----+----.    ,----+----+----+----+----+----.
+     TAB ,QUOT,COMM,DOT , P  , Y  ,      F  , G  , C  , R  , L  ,MINS,
+  //|----+----+----+----+----+----|    |----+----+----+----+----+----|
+      X0 , A  , O  , E  , U  , I  ,      D  , H  , T  , N  , S  ,SLSH,
+  //|----+----+----+----+----+----|    |----+----+----+----+----+----|
+     LSFT,SCLN, Q  , J  , K  , X  ,      B  , M  , W  , V  , Z  , X4 ,
+  //|----+----+----+----+----+----|    |----+----+----+----+----+----|
+      X3 ,LCTL,LALT,LGUI, X1 ,SPC ,     BSPC, X2 ,LEFT,DOWN, UP ,RGHT
+  //`----+----+----+----+----+----'    `----+----+----+----+----+----'
+  ),
+
+  [_LOWER] = KC_KEYMAP(
+  //,----+----+----+----+----+----.    ,----+----+----+----+----+----.
+         , 1  , 2  , 3  , 4  , 5  ,      6  , 7  , 8  , 9  , 0  ,    ,
+  //|----+----+----+----+----+----|    |----+----+----+----+----+----|
+     DEL ,CAPP,LEFT,RGHT, UP ,LBRC,     RBRC, P4 , P5 , P6 ,PLUS,PIPE,
+  //|----+----+----+----+----+----|    |----+----+----+----+----+----|
+         ,CPYP,    ,    ,DOWN,LCBR,     RCBR, P1 , P2 , P3 ,MINS,    ,
+  //|----+----+----+----+----+----|    |----+----+----+----+----+----|
+         ,    ,    ,    ,    ,    ,     DEL ,    , P0 ,PDOT,    ,
+  //`----+----+----+----+----+----'    `----+----+----+----+----+----'
+  ),
+
+  [_RAISE] = KC_KEYMAP(
+  //,----+----+----+----+----+----.    ,----+----+----+----+----+----.
+         ,EXLM, AT ,HASH,DLR ,PERC,     CIRC,AMPR,ASTR,LPRN,RPRN,    ,
+  //|----+----+----+----+----+----|    |----+----+----+----+----+----|
+     DEL ,MPRV,MNXT,VOLU,PGUP,UNDS,     EQL ,HOME,    ,    ,    ,BSLS,
+  //|----+----+----+----+----+----|    |----+----+----+----+----+----|
+     MUTE,MSTP,MPLY,VOLD,PGDN,MINS,     PLUS,END ,    ,    ,    ,    ,
+  //|----+----+----+----+----+----|    |----+----+----+----+----+----|
+         ,    ,    ,    ,    ,    ,         ,    ,    ,    ,    ,
+  //`----+----+----+----+----+----'    `----+----+----+----+----+----'
+  ),
+
+  [_FN3] = KC_KEYMAP(
+  //,----+----+----+----+----+----.    ,----+----+----+----+----+----.
+     F12 , F1 , F2 , F3 , F4 , F5 ,      F6 , F7 , F8 , F9 ,F10 ,F11 ,
+  //|----+----+----+----+----+----|    |----+----+----+----+----+----|
+         ,    ,    ,    ,    ,    ,         ,    ,    ,    ,    ,    ,
+  //|----+----+----+----+----+----|    |----+----+----+----+----+----|
+         ,    ,    ,    ,    ,    ,         ,    ,    ,    ,    ,    ,
+  //|----+----+----+----+----+----|    |----+----+----+----+----+----|
+         ,    ,    ,    ,    ,    ,         ,    ,    ,    ,    ,
+  //`----+----+----+----+----+----'    `----+----+----+----+----+----'
+  ),
+
+/* Adjust (Lower + Raise)
+ * ,-----------------------------------------------------------------------------------.
+ * |      | Reset|RGB Tg|RGB Md|Hue Up|Hue Dn|Sat Up|Sat Dn|Val Up|Val Dn|      |      |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * |      |      |      |Aud on|Audoff|AGnorm|AGswap|Qwerty|Colemk|Dvorak|      |      |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * |      |      |      |      |      |      |      |      |      |      |      |      |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      |      |             |      |      |      |      |      |
+ * `-----------------------------------------------------------------------------------'
+ */
+  [_ADJUST] = KEYMAP( \
+    _______, RESET  , RGB_TOG, RGB_MOD, RGB_HUD, RGB_HUI, RGB_SAD, RGB_SAI, RGB_VAD, RGB_VAI, _______, _______, \
+    _______, _______, _______, AU_ON,   AU_OFF,  AG_NORM, AG_SWAP, QWERTY,  COLEMAK, DVORAK,  _______, _______, \
+    _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, \
+    _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______ \
+  )
+
+
+};
+
+#ifdef AUDIO_ENABLE
+float tone_qwerty[][2]     = SONG(QWERTY_SOUND);
+float tone_dvorak[][2]     = SONG(DVORAK_SOUND);
+float tone_colemak[][2]    = SONG(COLEMAK_SOUND);
+#endif
+
+void persistent_default_layer_set(uint16_t default_layer) {
+  eeconfig_update_default_layer(default_layer);
+  default_layer_set(default_layer);
+}
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+  switch (keycode) {
+    case QWERTY:
+      if (record->event.pressed) {
+        #ifdef AUDIO_ENABLE
+          PLAY_SONG(tone_qwerty);
+        #endif
+        persistent_default_layer_set(1UL<<_QWERTY);
+      }
+      return false;
+      break;
+    case COLEMAK:
+      if (record->event.pressed) {
+        #ifdef AUDIO_ENABLE
+          PLAY_SONG(tone_colemak);
+        #endif
+        persistent_default_layer_set(1UL<<_COLEMAK);
+      }
+      return false;
+      break;
+    case DVORAK:
+      if (record->event.pressed) {
+        #ifdef AUDIO_ENABLE
+          PLAY_SONG(tone_dvorak);
+        #endif
+        persistent_default_layer_set(1UL<<_DVORAK);
+      }
+      return false;
+      break;
+    case LOWER:
+      if (record->event.pressed) {
+        layer_on(_LOWER);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      } else {
+        layer_off(_LOWER);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      }
+      return false;
+      break;
+    case RAISE:
+      if (record->event.pressed) {
+        layer_on(_RAISE);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      } else {
+        layer_off(_RAISE);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      }
+      return false;
+      break;
+    case ADJUST:
+      if (record->event.pressed) {
+        layer_on(_ADJUST);
+      } else {
+        layer_off(_ADJUST);
+      }
+      return false;
+      break;
+  }
+  return true;
+}

keyboards/lets_split_vitamins/keymaps/hexwire/rules.mk

@@ -0,0 +1,5 @@
+RGBLIGHT_ENABLE = yes
+
+ifndef QUANTUM_DIR
+	include ../../../../Makefile
+endif

keyboards/lets_split_vitamins/keymaps/khord/config.h

@@ -0,0 +1,41 @@
+/*
+This is the c configuration file for the keymap
+
+Copyright 2012 Jun Wako <wakojun@gmail.com>
+Copyright 2015 Jack Humbert
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef CONFIG_USER_H
+#define CONFIG_USER_H
+
+#include "../../config.h"
+
+#define TAPPING_TERM 150
+
+/* Use I2C or Serial, not both */
+
+#define USE_SERIAL
+// #define USE_I2C
+
+/* Select hand configuration */
+
+//#define MASTER_LEFT
+// #define MASTER_RIGHT
+#define EE_HANDS
+
+#define RGBLIGHT_ANIMATIONS
+
+#endif

keyboards/lets_split_vitamins/keymaps/khord/keymap.c

@@ -0,0 +1,169 @@
+#include "lets_split.h"
+#include "action_layer.h"
+#include "eeconfig.h"
+
+extern keymap_config_t keymap_config;
+
+#define _QWERTY 0
+#define _LOWER 3
+#define _RAISE 4
+#define _ADJUST 16
+
+enum custom_keycodes {
+  QWERTY = SAFE_RANGE,
+  LOWER,
+  RAISE,
+  ADJUST,
+  ADMIN,
+  SMSPC1
+};
+
+// Fillers to make layering more clear
+#define _______ KC_TRNS
+#define XXXXXXX KC_NO
+
+// Tap Dance Declarations
+enum {
+  SFT_CAP = 0
+};
+
+// Dylan's additions
+#define C_A_DEL LALT(LCTL(KC_DEL))
+#define C_A_INS LALT(LCTL(KC_INS))
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+/* Qwerty
+ * ,-----------------------------------------------------------------------------------.
+ * | Tab  |   Q  |   W  |   E  |   R  |   T  |   Y  |   U  |   I  |   O  |   P  | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Esc  |   A  |   S  |   D  |   F  |   G  |   H  |   J  |   K  |   L  |   ;  |  "   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | Shift|   Z  |   X  |   C  |   V  |   B  |   N  |   M  |   ,  |   .  |   /  |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |Adjust| Ctrl | Alt  | GUI  |Lower |Space |Space |Raise | Left | Down |  Up  |Right |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_QWERTY] = KEYMAP( \
+  KC_TAB,        KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,    KC_BSPC, \
+  CTL_T(KC_ESC), KC_A,    KC_S,    KC_D,    KC_F,    KC_G,    KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN, KC_QUOT, \
+  TD(SFT_CAP),   KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_N,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, SFT_T(KC_ENT), \
+  ADJUST,        KC_LCTL, KC_LALT, KC_LGUI, LOWER,   KC_SPC,  KC_SPC,  RAISE,   KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT \
+),
+
+/* Lower
+ * ,-----------------------------------------------------------------------------------.
+ * |   ~  |   !  |   @  |   #  |   $  |   %  |   ^  |   &  |   *  |   (  |   )  | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Del  |  F1  |  F2  |  F3  |  F4  |  F5  |  F6  |   _  |   +  |   {  |   }  |  |   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * |      |  F7  |  F8  |  F9  |  F10 |  F11 |  F12 |      |      |  END | HOME |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      |      |             |      | Next | Vol- | Vol+ | Play |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_LOWER] = KEYMAP( \
+  KC_TILD, KC_EXLM, KC_AT,   KC_HASH, KC_DLR,  KC_PERC, KC_CIRC, KC_AMPR, KC_ASTR, KC_LPRN, KC_RPRN, KC_BSPC, \
+  KC_DEL,  KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_UNDS, KC_PLUS, KC_LCBR, KC_RCBR, KC_PIPE, \
+  _______, KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,  _______, _______, KC_END,  KC_HOME, _______, \
+  _______, _______, _______, _______, _______, _______, _______, _______, KC_MNXT, KC_VOLD, KC_VOLU, KC_MPLY \
+),
+
+/* Raise
+ * ,-----------------------------------------------------------------------------------.
+ * |   `  |   1  |   2  |   3  |   4  |   5  |   6  |   7  |   8  |   9  |   0  | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Del  |  F1  |  F2  |  F3  |  F4  |  F5  |  F6  |   -  |   =  |   [  |   ]  |  \   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * |      |  F7  |  F8  |  F9  |  F10 |  F11 |  F12 |      |      |PG DN |PG UP |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      |      |             |      | Next | Vol- | Vol+ | Play |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_RAISE] = KEYMAP( \
+  KC_GRV,  KC_1,    KC_2,    KC_3,    KC_4,    KC_5,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    KC_BSPC, \
+  KC_DEL,  KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_MINS, KC_EQL,  KC_LBRC, KC_RBRC, KC_BSLS, \
+  _______, KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,  _______, _______, KC_PGDN, KC_PGUP, _______, \
+  _______, _______, _______, _______, _______, _______, _______, _______, KC_MNXT, KC_VOLD, KC_VOLU, KC_MPLY \
+),
+
+/* Adjust (Lower + Raise)
+ * ,-----------------------------------------------------------------------------------.
+ * |      | Reset|      |      |AGnorm|AGswap|      |      |      |string|string|  Del |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * |      |RGBMOD|HUE-UP|SAT-UP|BRI-UP|      |PLAIN |BREATH|RANBOW| SWIRL|      |      |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * |      |RGBTOG|HUE-DN|SAT-DN|BRI-DN|      |GRDNT | XMAS |KNIGHT| SNAKE|      | CAIns|
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      |      |             |      |      |      |      | CADel|
+ * `-----------------------------------------------------------------------------------'
+ */
+[_ADJUST] =  KEYMAP( \
+  _______, RESET,   _______, _______, AG_NORM, AG_SWAP, _______, _______, _______, ADMIN,    SMSPC1,  KC_DEL, \
+  _______, RGB_MOD, RGB_HUI, RGB_SAI, RGB_VAI, _______, RGB_M_P, RGB_M_B, RGB_M_R, RGB_M_SW, _______, _______, \
+  _______, RGB_TOG, RGB_HUD, RGB_SAD, RGB_VAD, _______, RGB_M_G, RGB_M_X, RGB_M_K, RGB_M_SN, _______, C_A_INS, \
+  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,  _______, C_A_DEL \
+)
+
+};
+
+qk_tap_dance_action_t tap_dance_actions[] = {
+  [SFT_CAP] = ACTION_TAP_DANCE_DOUBLE(KC_LSFT, KC_CAPS)
+};
+
+void persistent_default_layer_set(uint16_t default_layer) {
+  eeconfig_update_default_layer(default_layer);
+  default_layer_set(default_layer);
+}
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+  switch (keycode) {
+    case QWERTY:
+      if (record->event.pressed) {
+        persistent_default_layer_set(1UL<<_QWERTY);
+      }
+      return false;
+      break;
+    case LOWER:
+      if (record->event.pressed) {
+        layer_on(_LOWER);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      } else {
+        layer_off(_LOWER);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      }
+      return false;
+      break;
+    case RAISE:
+      if (record->event.pressed) {
+        layer_on(_RAISE);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      } else {
+        layer_off(_RAISE);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      }
+      return false;
+      break;
+    case ADJUST:
+      if (record->event.pressed) {
+        layer_on(_ADJUST);
+      } else {
+        layer_off(_ADJUST);
+      }
+      return false;
+      break;
+    case ADMIN:
+      if (record->event.pressed) {
+        SEND_STRING("Administrator");
+      }
+      return false;
+      break;
+    case SMSPC1:
+      if (record->event.pressed) {
+        SEND_STRING("Simspace1!");
+      }
+      return false;
+      break;
+  }
+  return true;
+}

keyboards/lets_split_vitamins/keymaps/khord/rules.mk

@@ -0,0 +1,7 @@
+TAP_DANCE_ENABLE = yes
+RGBLIGHT_ENABLE = yes
+USE_I2C = no
+
+ifndef QUANTUM_DIR
+	include ../../../../Makefile
+endif

keyboards/lets_split_vitamins/keymaps/kris/keymap.c

@@ -0,0 +1,214 @@
+#include "lets_split.h"
+#include "action_layer.h"
+#include "eeconfig.h"
+
+extern keymap_config_t keymap_config;
+
+// Each layer gets a name for readability, which is then used in the keymap matrix below.
+// The underscores don't mean anything - you can have a layer called STUFF or any other name.
+// Layer names don't all need to be of the same length, obviously, and you can also skip them
+// entirely and just use numbers.
+#define _QWERTY 0
+#define _COLEMAK 1
+#define _DVORAK 2
+#define _LOWER 3
+#define _RAISE 4
+#define _ADJUST 16
+
+enum custom_keycodes {
+  QWERTY = SAFE_RANGE,
+  COLEMAK,
+  DVORAK,
+  LOWER,
+  RAISE,
+  ADJUST,
+};
+
+// Fillers to make layering more clear
+#define _______ KC_TRNS
+#define XXXXXXX KC_NO
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+/* Qwerty
+ * ,-----------------------------------------------------------------------------------.
+ * | Tab  |   Q  |   W  |   E  |   R  |   T  |   Y  |   U  |   I  |   O  |   P  | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Ctrl |   A  |   S  |   D  |   F  |   G  |   H  |   J  |   K  |   L  |   ;  |Enter |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | Shift|   Z  |   X  |   C  |   V  |   B  |   N  |   M  |   ,  |   .  |   /  |Shift||
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |Adjust| Alt  |  Gui |Caps  |Lower |Space |Space |Raise | [    | ]    |  -   |Ctrl  |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_QWERTY] = KEYMAP( \
+  KC_TAB,  KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,    KC_BSPC, \
+  KC_LCTRL,  KC_A,    KC_S,    KC_D,    KC_F,    KC_G,    KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN, KC_ENT, \
+  KC_LSFT, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_N,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, KC_RSFT , \
+  ADJUST, KC_LALT,  KC_LGUI, KC_CAPS,  LOWER,   KC_SPC,  KC_SPC,  RAISE,   KC_LBRC, KC_RBRC, KC_MINS,   KC_RCTRL \
+),
+
+/* Colemak
+ * ,-----------------------------------------------------------------------------------.
+ * | Tab  |   Q  |   W  |   F  |   P  |   G  |   J  |   L  |   U  |   Y  |   ;  | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Esc  |   A  |   R  |   S  |   T  |   D  |   H  |   N  |   E  |   I  |   O  |  "   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | Shift|   Z  |   X  |   C  |   V  |   B  |   K  |   M  |   ,  |   .  |   /  |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |Adjust| Ctrl | Alt  | GUI  |Lower |Space |Space |Raise | Left | Down |  Up  |Right |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_COLEMAK] = KEYMAP( \
+  KC_TAB,  KC_Q,    KC_W,    KC_F,    KC_P,    KC_G,    KC_J,    KC_L,    KC_U,    KC_Y,    KC_SCLN, KC_BSPC, \
+  KC_ESC,  KC_A,    KC_R,    KC_S,    KC_T,    KC_D,    KC_H,    KC_N,    KC_E,    KC_I,    KC_O,    KC_QUOT, \
+  KC_LSFT, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_K,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, KC_ENT , \
+  ADJUST, KC_LALT,  KC_LGUI, KC_CAPS,  LOWER,   KC_SPC,  KC_SPC,  RAISE,   KC_LBRC, KC_RBRC, KC_MINS,   KC_RCTRL \
+),
+
+/* Dvorak
+ * ,-----------------------------------------------------------------------------------.
+ * | Tab  |   "  |   ,  |   .  |   P  |   Y  |   F  |   G  |   C  |   R  |   L  | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Esc  |   A  |   O  |   E  |   U  |   I  |   D  |   H  |   T  |   N  |   S  |  /   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | Shift|   ;  |   Q  |   J  |   K  |   X  |   B  |   M  |   W  |   V  |   Z  |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |Adjust| Ctrl | Alt  | GUI  |Lower |Space |Space |Raise | Left | Down |  Up  |Right |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_DVORAK] = KEYMAP( \
+  KC_TAB,  KC_QUOT, KC_COMM, KC_DOT,  KC_P,    KC_Y,    KC_F,    KC_G,    KC_C,    KC_R,    KC_L,    KC_BSPC, \
+  KC_ESC,  KC_A,    KC_O,    KC_E,    KC_U,    KC_I,    KC_D,    KC_H,    KC_T,    KC_N,    KC_S,    KC_SLSH, \
+  KC_LSFT, KC_SCLN, KC_Q,    KC_J,    KC_K,    KC_X,    KC_B,    KC_M,    KC_W,    KC_V,    KC_Z,    KC_ENT , \
+  ADJUST,  KC_LCTL, KC_LALT, KC_LGUI, LOWER,   KC_SPC,  KC_SPC,  RAISE,   KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT \
+),
+
+/* Lower
+ * ,-----------------------------------------------------------------------------------.
+ * |   ~  |   !  |   @  |   #  |   $  |   %  |   ^  |   &  |   *  |   (  |   )  | Del  |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Del  |  F1  |  F2  |  F3  |  F4  |  F5  |  F6  |   _  |   +  |     |    \  |  |   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * |      |  F7  |  F8  |  F9  |  F10 |  F11 |  F12 |ISO ~ |ISO | |      |      |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      |      |             |      | Next | Vol- | Vol+ | Play |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_LOWER] = KEYMAP( \
+  KC_TILD, KC_EXLM, KC_AT,   KC_HASH, KC_DLR,  KC_PERC, KC_CIRC, KC_AMPR, KC_ASTR, KC_LPRN, KC_RPRN, KC_DEL, \
+  KC_DEL,  KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_UNDS, KC_PLUS, KC_LCBR, KC_RCBR, KC_PIPE, \
+  _______, KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,S(KC_NUHS),S(KC_NUBS),_______, _______, _______, \
+  _______, _______, _______, _______, _______, _______, _______, _______, KC_MNXT, KC_VOLD, KC_VOLU, KC_MPLY \
+),
+
+/* Raise
+ * ,-----------------------------------------------------------------------------------.
+ * |   `  |   1  |   2  |   3  |   4  |   5  |   6  |   7  |   8  |   9  |   0  | Del  |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Del  |  F1  |  F2  |  F3  |  F4  |  F5  |  F6  |   4  |   5  |   6  |   ]  |  \   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * |      |  F7  |  F8  |  F9  |  F10 |  F11 |  F12 |ISO # |ISO / |      |      |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      |      |             |      | Next | Vol- | Vol+ | Play |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_RAISE] = KEYMAP( \
+  KC_GRV,  KC_1,    KC_2,    KC_3,    KC_4,    KC_5,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    KC_DEL, \
+  KC_DEL,  KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_4, KC_5,  KC_6, KC_RBRC, KC_BSLS, \
+  _______, KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,  KC_1, KC_2, KC_3, _______, _______, \
+  _______, _______, _______, _______, _______, _______, _______, _______, KC_0, KC_VOLD, KC_VOLU, KC_MPLY \
+),
+
+/* Adjust (Lower + Raise)
+ * ,-----------------------------------------------------------------------------------.
+ * |      | Reset|      |      |      |      |      |      |      |      |      |  Del |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * |      |      |      |Aud on|Audoff|AGnorm|AGswap|Qwerty|Colemk|Dvorak|      |      |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * |      |      |      |      |      |      |      |      |      |      |      |      |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      |      |             |      |      |      |      |      |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_ADJUST] =  KEYMAP( \
+  _______, RESET,   _______, _______, _______, _______, _______, _______, _______, _______, _______, KC_DEL, \
+  _______, _______, _______, AU_ON,   AU_OFF,  AG_NORM, AG_SWAP, QWERTY,  COLEMAK, DVORAK,  _______, _______, \
+  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, \
+  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______ \
+)
+
+
+};
+
+#ifdef AUDIO_ENABLE
+float tone_qwerty[][2]     = SONG(QWERTY_SOUND);
+float tone_dvorak[][2]     = SONG(DVORAK_SOUND);
+float tone_colemak[][2]    = SONG(COLEMAK_SOUND);
+#endif
+
+void persistent_default_layer_set(uint16_t default_layer) {
+  eeconfig_update_default_layer(default_layer);
+  default_layer_set(default_layer);
+}
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+  switch (keycode) {
+    case QWERTY:
+      if (record->event.pressed) {
+        #ifdef AUDIO_ENABLE
+          PLAY_SONG(tone_qwerty);
+        #endif
+        persistent_default_layer_set(1UL<<_QWERTY);
+      }
+      return false;
+      break;
+    case COLEMAK:
+      if (record->event.pressed) {
+        #ifdef AUDIO_ENABLE
+          PLAY_SONG(tone_colemak);
+        #endif
+        persistent_default_layer_set(1UL<<_COLEMAK);
+      }
+      return false;
+      break;
+    case DVORAK:
+      if (record->event.pressed) {
+        #ifdef AUDIO_ENABLE
+          PLAY_SONG(tone_dvorak);
+        #endif
+        persistent_default_layer_set(1UL<<_DVORAK);
+      }
+      return false;
+      break;
+    case LOWER:
+      if (record->event.pressed) {
+        layer_on(_LOWER);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      } else {
+        layer_off(_LOWER);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      }
+      return false;
+      break;
+    case RAISE:
+      if (record->event.pressed) {
+        layer_on(_RAISE);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      } else {
+        layer_off(_RAISE);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      }
+      return false;
+      break;
+    case ADJUST:
+      if (record->event.pressed) {
+        layer_on(_ADJUST);
+      } else {
+        layer_off(_ADJUST);
+      }
+      return false;
+      break;
+  }
+  return true;
+}

keyboards/lets_split_vitamins/keymaps/mbsurfer/config.h

@@ -0,0 +1,43 @@
+/*
+This is the c configuration file for the keymap
+
+Copyright 2012 Jun Wako <wakojun@gmail.com>
+Copyright 2015 Jack Humbert
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef CONFIG_USER_H
+#define CONFIG_USER_H
+
+#include "../../config.h"
+
+#define TAPPING_TERM 100
+
+/* Use I2C or Serial, not both */
+
+#define USE_SERIAL
+// #define USE_I2C
+
+/* Select hand configuration */
+
+//#define MASTER_LEFT
+// #define MASTER_RIGHT
+#define EE_HANDS
+
+#undef RGBLED_NUM
+#define RGBLIGHT_ANIMATIONS
+#define RGBLED_NUM 8
+
+#endif

keyboards/lets_split_vitamins/keymaps/mbsurfer/keymap.c

@@ -0,0 +1,275 @@
+#include "lets_split.h"
+#include "action_layer.h"
+#include "eeconfig.h"
+
+extern rgblight_config_t rgblight_config;
+extern keymap_config_t keymap_config;
+
+// Each layer gets a name for readability, which is then used in the keymap matrix below.
+// The underscores don't mean anything - you can have a layer called STUFF or any other name.
+// Layer names don't all need to be of the same length, obviously, and you can also skip them
+// entirely and just use numbers.
+#define _QWERTY 0
+#define _COLEMAK 1
+#define _DVORAK 2
+#define _LOWER 3
+#define _RAISE 4
+#define _ADJUST 16
+
+enum custom_keycodes {
+  QWERTY = SAFE_RANGE,
+  COLEMAK,
+  DVORAK,
+  LOWER,
+  RAISE,
+  ADJUST,
+};
+
+// Fillers to make layering more clear
+#define _______ KC_TRNS
+#define XXXXXXX KC_NO
+
+// Tap Dance Declarations
+enum {
+  SFT_CAP = 0,
+  LFT_HOM,
+  DWN_PDN,
+  UPP_PUP,
+  RGT_END
+};
+
+// Task Manager
+#define C_S_ESC LSFT(LCTL(KC_ESC))
+#define C_A_DEL LALT(LCTL(KC_DEL))
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+/* Qwerty
+ * ,------------------------------------------     ------------------------------------------.
+ * | Tab  |   Q  |   W  |   E  |   R  |   T  |     |  Y   |   U  |   I  |   O  |   P  | Bksp |
+ * |------+------+------+------+------+-------     -------+------+------+------+------+------|
+ * | Esc  |   A  |   S  |   D  |   F  |   G  |     |  H   |   J  |   K  |   L  |   ;  |  "   |
+ * |------+------+------+------+------+-------     -------+------+------+------+------+------|
+ * | Shift|   Z  |   X  |   C  |   V  |   B  |     |  N   |   M  |   ,  |   .  |   /  |Enter |
+ * |------+------+------+------+------+------+     +------+------+------+------+------+------|
+*  |Adjust| Ctrl | Alt  | GUI  |Lower |Space |     |Space |Raise | Left | Down |  Up  |Right |
+ * `------------------------------------------     ------------------------------------------'
+ */
+[_QWERTY] = KEYMAP( \
+  KC_TAB,        KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,    KC_U,    KC_I,        KC_O,        KC_P,        KC_BSPC, \
+  CTL_T(KC_ESC), KC_A,    KC_S,    KC_D,    KC_F,    KC_G,    KC_H,    KC_J,    KC_K,        KC_L,        KC_SCLN,     KC_QUOT, \
+  TD(SFT_CAP),   KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_N,    KC_M,    KC_COMM,     KC_DOT,      KC_SLSH,     SFT_T(KC_ENT), \
+  ADJUST,        KC_LCTL, KC_LALT, KC_LGUI, LOWER,   KC_SPC,  KC_SPC,  RAISE,   TD(LFT_HOM), TD(DWN_PDN), TD(UPP_PUP), TD(RGT_END) \
+),
+
+/* Colemak
+ * ,------------------------------------------     ------------------------------------------.
+ * | Tab  |   Q  |   W  |   F  |   P  |   G  |     |   J  |   L  |   U  |   Y  |   ;  | Bksp |
+ * |------+------+------+------+------+-------     -------+------+------+------+------+------|
+ * | Esc  |   A  |   R  |   S  |   T  |   D  |     |   H  |   N  |   E  |   I  |   O  |  "   |
+ * |------+------+------+------+------+-------     -------+------+------+------+------+------|
+ * | Shift|   Z  |   X  |   C  |   V  |   B  |     |   K  |   M  |   ,  |   .  |   /  |Enter |
+ * |------+------+------+------+------+------+     +------+------+------+------+------+------|
+ * |Adjust| Ctrl | Alt  | GUI  |Lower |Space |     |Space |Raise | Left | Down |  Up  |Right |
+ * `------------------------------------------     ------------------------------------------'
+ */
+[_COLEMAK] = KEYMAP( \
+  KC_TAB,  KC_Q,    KC_W,    KC_F,    KC_P,    KC_G,    KC_J,    KC_L,    KC_U,    KC_Y,    KC_SCLN, KC_BSPC, \
+  KC_ESC,  KC_A,    KC_R,    KC_S,    KC_T,    KC_D,    KC_H,    KC_N,    KC_E,    KC_I,    KC_O,    KC_QUOT, \
+  KC_LSFT, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_K,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, KC_ENT , \
+  ADJUST,  KC_LCTL, KC_LALT, KC_LGUI, LOWER,   KC_SPC,  KC_SPC,  RAISE,   KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT \
+),
+
+/* Dvorak
+ * ,------------------------------------------     ------------------------------------------.
+ * | Tab  |   "  |   ,  |   .  |   P  |   Y  |     |   F  |   G  |   C  |   R  |   L  | Bksp |
+ * |------+------+------+------+------+-------     -------+------+------+------+------+------|
+ * | Esc  |   A  |   O  |   E  |   U  |   I  |     |   D  |   H  |   T  |   N  |   S  |  /   |
+ * |------+------+------+------+------+-------     -------+------+------+------+------+------|
+ * | Shift|   ;  |   Q  |   J  |   K  |   X  |     |   B  |   M  |   W  |   V  |   Z  |Enter |
+ * |------+------+------+------+------+------+     +------+------+------+------+------+------|
+ * |Adjust| Ctrl | Alt  | GUI  |Lower |Space |     |Space |Raise | Left | Down |  Up  |Right |
+ * `------------------------------------------     ------------------------------------------'
+ */
+[_DVORAK] = KEYMAP( \
+  KC_TAB,  KC_QUOT, KC_COMM, KC_DOT,  KC_P,    KC_Y,    KC_F,    KC_G,    KC_C,    KC_R,    KC_L,    KC_BSPC, \
+  KC_ESC,  KC_A,    KC_O,    KC_E,    KC_U,    KC_I,    KC_D,    KC_H,    KC_T,    KC_N,    KC_S,    KC_SLSH, \
+  KC_LSFT, KC_SCLN, KC_Q,    KC_J,    KC_K,    KC_X,    KC_B,    KC_M,    KC_W,    KC_V,    KC_Z,    KC_ENT , \
+  ADJUST,  KC_LCTL, KC_LALT, KC_LGUI, LOWER,   KC_SPC,  KC_SPC,  RAISE,   KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT \
+),
+
+/* Lower
+ * ,------------------------------------------     ------------------------------------------.
+ * |   ~  |   !  |   @  |   #  |   $  |   %  |     |   ^  |   &  |   *  |   (  |   )  | Bksp |
+ * |------+------+------+------+------+-------     -------+------+------+------+------+------|
+ * | Del  |  F1  |  F2  |  F3  |  F4  |  F5  |     |  F6  |   _  |   +  |   {  |   }  |  |   |
+ * |------+------+------+------+------+-------     -------+------+------+------+------+------|
+ * |      |  F7  |  F8  |  F9  |  F10 |  F11 |     |  F12 |ISO ~ |ISO | |  END | HOME |Enter |
+ * |------+------+------+------+------+------+     +------+------+------+------+------+------|
+ * |      |      |      |      |      |      |     |      |      | Next | Vol- | Vol+ | Play |
+ * `------------------------------------------     ------------------------------------------'
+ */
+[_LOWER] = KEYMAP( \
+  KC_TILD, KC_EXLM, KC_AT,   KC_HASH, KC_DLR,  KC_PERC, KC_CIRC, KC_AMPR,    KC_ASTR,    KC_LPRN, KC_RPRN, KC_BSPC, \
+  KC_DEL,  KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_UNDS,    KC_PLUS,    KC_LCBR, KC_RCBR, KC_PIPE, \
+  _______, KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,  S(KC_NUHS), S(KC_NUBS), KC_END,  KC_HOME, _______, \
+  _______, _______, _______, _______, _______, _______, _______, _______,    KC_MNXT,    KC_VOLD, KC_VOLU, KC_MPLY  \
+),
+
+/* Raise
+ * ,------------------------------------------     ------------------------------------------.
+ * |   `  |   1  |   2  |   3  |   4  |   5  |     |   6  |   7  |   8  |   9  |   0  | Bksp |
+ * |------+------+------+------+------+-------     -------+------+------+------+------+------|
+ * | Del  |  F1  |  F2  |  F3  |  F4  |  F5  |     |  F6  |   -  |   =  |   [  |   ]  |  \   |
+ * |------+------+------+------+------+-------     -------+------+------+------+------+------|
+ * |      |  F7  |  F8  |  F9  |  F10 |  F11 |     |  F12 |ISO # |ISO / |PG DN |PG UP |Enter |
+ * |------+------+------+------+------+------+     +------+------+------+------+------+------|
+ * |      |      |      |      |      |      |     |      |      | Next | Vol- | Vol+ | Play |
+ * `------------------------------------------     ------------------------------------------'
+ */
+[_RAISE] = KEYMAP( \
+  KC_GRV,  KC_1,    KC_2,    KC_3,    KC_4,    KC_5,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    KC_BSPC, \
+  KC_DEL,  KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_MINS, KC_EQL,  KC_LBRC, KC_RBRC, KC_BSLS, \
+  _______, KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,  KC_NUHS, KC_NUBS, KC_PGDN, KC_PGUP, _______, \
+  _______, _______, _______, _______, _______, _______, _______, _______, KC_MNXT, KC_VOLD, KC_VOLU, KC_MPLY \
+),
+
+/* Adjust (Lower + Raise)
+ * ,------------------------------------------     ------------------------------------------.
+ * | Reset|      | Plain|Breath|Rainbw| Swirl|     | Snake|Knight| Xmas |Grdent|      |  Del |
+ * |------+------+------+------+------+-------     -------+------+------+------+------+------|
+ * |      |      |      |Aud on|Audoff|AGnorm|     |AGswap|Qwerty|Colemk|Dvorak|      |      |
+ * |------+------+------+------+------+-------     -------+------+------+------+------+------|
+ * |      |Toggle| Mode | Hue- | Hue+ | Sat- |     | Sat+ | Val- | Val+ |      |      |      | (RGB)
+ * |------+------+------+------+------+------+     +------+------+------+------+------+------|
+ * |      |      |      |      |      |      |     |      |      |      |      |TskMng|CAltDe|
+ * `------------------------------------------     ------------------------------------------'
+ */
+[_ADJUST] =  KEYMAP( \
+  RESET,   _______, RGB_M_P, RGB_M_B, RGB_M_R, RGB_M_SW, RGB_M_SN, RGB_M_K, RGB_M_X, RGB_M_G, _______, KC_DEL,  \
+  _______, _______, _______, AU_ON,   AU_OFF,  AG_NORM,  AG_SWAP,  QWERTY,  COLEMAK, DVORAK,  _______, _______, \
+  _______, RGB_TOG, RGB_MOD, RGB_HUD, RGB_HUI, RGB_SAD,  RGB_SAI,  RGB_VAD, RGB_VAI, _______, _______, _______, \
+  _______, _______, _______, _______, _______, _______,  _______,  _______, _______, _______, C_S_ESC, C_A_DEL \
+)
+
+
+};
+
+int RGB_current_mode;
+int RGB_current_hue;
+
+qk_tap_dance_action_t tap_dance_actions[] = {
+  [SFT_CAP] = ACTION_TAP_DANCE_DOUBLE(KC_LSFT, KC_CAPS),
+  [LFT_HOM] = ACTION_TAP_DANCE_DOUBLE(KC_LEFT, KC_HOME),
+  [DWN_PDN] = ACTION_TAP_DANCE_DOUBLE(KC_DOWN, KC_PGDN),
+  [UPP_PUP] = ACTION_TAP_DANCE_DOUBLE(KC_UP, KC_PGUP),
+  [RGT_END] = ACTION_TAP_DANCE_DOUBLE(KC_RGHT, KC_END)
+};
+
+void persistent_default_layer_set(uint16_t default_layer) {
+  eeconfig_update_default_layer(default_layer);
+  default_layer_set(default_layer);
+}
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+  switch (keycode) {
+    case QWERTY:
+      if (record->event.pressed) {
+        persistent_default_layer_set(1UL<<_QWERTY);
+      }
+      return false;
+      break;
+    case COLEMAK:
+      if (record->event.pressed) {
+        persistent_default_layer_set(1UL<<_COLEMAK);
+      }
+      return false;
+      break;
+    case DVORAK:
+      if (record->event.pressed) {
+        persistent_default_layer_set(1UL<<_DVORAK);
+      }
+      return false;
+      break;
+    case LOWER:
+      if (record->event.pressed) {
+
+        if (IS_LAYER_OFF(_RAISE) && IS_LAYER_OFF(_ADJUST)) {
+          // Save current RGB info
+          RGB_current_mode = rgblight_config.mode;
+          RGB_current_hue = rgblight_config.hue;
+
+          // Set RGB to Blue
+          rgblight_mode(1);
+          rgblight_setrgb(0, 0, 255);
+        }
+
+        layer_on(_LOWER);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+
+        if (IS_LAYER_ON(_ADJUST)){
+          // Set RGB to cyan
+          rgblight_setrgb(0, 255, 255);
+        }
+      } else {
+
+        layer_off(_LOWER);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+
+        if (IS_LAYER_OFF(_RAISE) && IS_LAYER_OFF(_ADJUST)) {
+          // Reset RGB
+          rgblight_mode(RGB_current_mode);
+          rgblight_sethsv(RGB_current_hue, rgblight_config.sat, rgblight_config.val);
+        } else if (IS_LAYER_ON(_RAISE)){
+          // Set RGB to Red
+          rgblight_setrgb(0, 255, 0);
+        }
+      }
+      return false;
+      break;
+    case RAISE:
+      if (record->event.pressed) {
+
+        if (IS_LAYER_OFF(_LOWER) && IS_LAYER_OFF(_ADJUST)) {
+          // Save current RGB info
+          RGB_current_mode = rgblight_config.mode;
+          RGB_current_hue = rgblight_config.hue;
+
+          // Set RGB to Green
+          rgblight_mode(1);
+          rgblight_setrgb(0, 255, 0);
+        }
+
+        layer_on(_RAISE);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+
+        if (IS_LAYER_ON(_ADJUST)){
+          // Set RGB to cyan
+          rgblight_setrgb(0, 255, 255);
+        }
+      } else {
+        layer_off(_RAISE);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+
+        if (IS_LAYER_OFF(_LOWER) && IS_LAYER_OFF(_ADJUST)) {
+          // Reset RGB
+          rgblight_mode(RGB_current_mode);
+          rgblight_sethsv(RGB_current_hue, rgblight_config.sat, rgblight_config.val);
+        } else if (IS_LAYER_ON(_LOWER)){
+          // Set RGB to Blue
+          rgblight_setrgb(0, 0, 255);
+        }
+      }
+      return false;
+      break;
+    case ADJUST:
+      if (record->event.pressed) {
+        layer_on(_ADJUST);
+      } else {
+        layer_off(_ADJUST);
+      }
+      return false;
+      break;
+  }
+  return true;
+}

keyboards/lets_split_vitamins/keymaps/mbsurfer/rules.mk

@@ -0,0 +1,7 @@
+TAP_DANCE_ENABLE = yes
+RGBLIGHT_ENABLE = yes
+USE_I2C = no
+
+ifndef QUANTUM_DIR
+	include ../../../../Makefile
+endif

keyboards/lets_split_vitamins/keymaps/mjt/config.h

@@ -0,0 +1,38 @@
+/*
+Copyright 2012 Jun Wako <wakojun@gmail.com>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+
+#define USE_SERIAL
+
+#define MASTER_LEFT
+// #define MASTER_RIGHT
+// #define EE_HANDS
+
+
+#ifdef SUBPROJECT_rev1
+    #include "../../rev1/config.h"
+#endif
+#ifdef SUBPROJECT_rev2
+    #include "../../rev2/config.h"
+#endif
+#ifdef SUBPROJECT_rev2fliphalf
+	#include "../../rev2fliphalf/config.h"
+#endif
+
+#undef RGBLED_NUM
+#define RGBLIGHT_ANIMATIONS
+#define RGBLED_NUM 10

keyboards/lets_split_vitamins/keymaps/mjt/keymap.c

@@ -0,0 +1,217 @@
+#include "lets_split.h"
+#include "action_layer.h"
+#include "eeconfig.h"
+#ifdef BACKLIGHT_ENABLE
+  #include "backlight.h"
+#endif
+
+extern keymap_config_t keymap_config;
+
+// Each layer gets a name for readability, which is then used in the keymap matrix below.
+// The underscores don't mean anything - you can have a layer called STUFF or any other name.
+// Layer names don't all need to be of the same length, obviously, and you can also skip them
+// entirely and just use numbers.
+#define _QWERTY 0
+#define _COLEMAK 1
+#define _DVORAK 2
+#define _LOWER 3
+#define _RAISE 4
+#define _ADJUST 16
+
+enum custom_keycodes {
+  QWERTY = SAFE_RANGE,
+  COLEMAK,
+  DVORAK,
+  LOWER,
+  RAISE,
+  ADJUST,
+};
+
+// Fillers to make layering more clear
+#define _______ KC_TRNS
+#define XXXXXXX KC_NO
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+/* Qwerty
+ * ,-----------------------------------------------------------------------------------.
+ * | Tab  |   Q  |   W  |   E  |   R  |   T  |   Y  |   U  |   I  |   O  |   P  | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Esc  |   A  |   S  |   D  |   F  |   G  |   H  |   J  |   K  |   L  |   ;  |  "   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | Shift|   Z  |   X  |   C  |   V  |   B  |   N  |   M  |   ,  |   .  |   /  |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |Adjust| Ctrl | Alt  | GUI  |Lower |Space |Space |Raise | Left | Down |  Up  |Right |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_QWERTY] = KEYMAP( \
+  KC_TAB,  KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,    KC_BSPC, \
+  KC_ESC,  KC_A,    KC_S,    KC_D,    KC_F,    KC_G,    KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN, KC_QUOT, \
+  KC_LSFT, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_N,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, KC_ENT , \
+  ADJUST,  KC_LCTL, KC_LALT, KC_LGUI, LOWER,   KC_SPC,  KC_SPC,  RAISE,   KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT \
+),
+
+/* Colemak
+ * ,-----------------------------------------------------------------------------------.
+ * | Tab  |   Q  |   W  |   F  |   P  |   G  |   J  |   L  |   U  |   Y  |   ;  | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Esc  |   A  |   R  |   S  |   T  |   D  |   H  |   N  |   E  |   I  |   O  |  "   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | Shift|   Z  |   X  |   C  |   V  |   B  |   K  |   M  |   ,  |   .  |   /  |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |Adjust| Ctrl | Alt  | GUI  |Lower |Space |Space |Raise | Left | Down |  Up  |Right |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_COLEMAK] = KEYMAP( \
+  KC_TAB,  KC_Q,    KC_W,    KC_F,    KC_P,    KC_G,    KC_J,    KC_L,    KC_U,    KC_Y,    KC_SCLN, KC_BSPC, \
+  KC_ESC,  KC_A,    KC_R,    KC_S,    KC_T,    KC_D,    KC_H,    KC_N,    KC_E,    KC_I,    KC_O,    KC_QUOT, \
+  KC_LSFT, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_K,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, KC_ENT , \
+  ADJUST,  KC_LCTL, KC_LALT, KC_LGUI, LOWER,   KC_SPC,  KC_SPC,  RAISE,   KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT \
+),
+
+/* Dvorak
+ * ,-----------------------------------------------------------------------------------.
+ * | Tab  |   "  |   ,  |   .  |   P  |   Y  |   F  |   G  |   C  |   R  |   L  | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Esc  |   A  |   O  |   E  |   U  |   I  |   D  |   H  |   T  |   N  |   S  |  /   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | Shift|   ;  |   Q  |   J  |   K  |   X  |   B  |   M  |   W  |   V  |   Z  |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |Adjust| Ctrl | Alt  | GUI  |Lower |Space |Space |Raise | Left | Down |  Up  |Right |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_DVORAK] = KEYMAP( \
+  KC_TAB,  KC_QUOT, KC_COMM, KC_DOT,  KC_P,    KC_Y,    KC_F,    KC_G,    KC_C,    KC_R,    KC_L,    KC_BSPC, \
+  KC_ESC,  KC_A,    KC_O,    KC_E,    KC_U,    KC_I,    KC_D,    KC_H,    KC_T,    KC_N,    KC_S,    KC_SLSH, \
+  KC_LSFT, KC_SCLN, KC_Q,    KC_J,    KC_K,    KC_X,    KC_B,    KC_M,    KC_W,    KC_V,    KC_Z,    KC_ENT , \
+  ADJUST,  KC_LCTL, KC_LALT, KC_LGUI, LOWER,   KC_SPC,  KC_SPC,  RAISE,   KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT \
+),
+
+/* Lower
+ * ,-----------------------------------------------------------------------------------.
+ * |   ~  |   !  |   @  |   #  |   $  |   %  |   ^  |   &  |   *  |   (  |   )  | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Del  |  F1  |  F2  |  F3  |  F4  |  F5  |  F6  |   _  |   +  |     |    \  |  |   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * |      |  F7  |  F8  |  F9  |  F10 |  F11 |  F12 |ISO ~ |ISO | |      |      |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      |      |             |      | Next | Vol- | Vol+ | Play |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_LOWER] = KEYMAP( \
+  KC_TILD, KC_EXLM, KC_AT,   KC_HASH, KC_DLR,  KC_PERC, KC_CIRC, KC_AMPR, KC_ASTR, KC_LPRN, KC_RPRN, KC_BSPC, \
+  KC_DEL,  KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_UNDS, KC_PLUS, KC_LCBR, KC_RCBR, KC_PIPE, \
+  _______, KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,S(KC_NUHS),S(KC_NUBS),_______, _______, _______, \
+  _______, _______, _______, _______, _______, _______, _______, _______, KC_MNXT, KC_VOLD, KC_VOLU, KC_MPLY \
+),
+
+/* Raise
+ * ,-----------------------------------------------------------------------------------.
+ * |   `  |   1  |   2  |   3  |   4  |   5  |   6  |   7  |   8  |   9  |   0  | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Del  |  F1  |  F2  |  F3  |  F4  |  F5  |  F6  |   -  |   =  |   [  |   ]  |  \   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * |      |  F7  |  F8  |  F9  |  F10 |  F11 |  F12 |ISO # |ISO / |      |      |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      |      |             |      | Next | Vol- | Vol+ | Play |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_RAISE] = KEYMAP( \
+  KC_GRV,  KC_1,    KC_2,    KC_3,    KC_4,    KC_5,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    KC_BSPC, \
+  KC_DEL,  KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_MINS, KC_EQL,  KC_LBRC, KC_RBRC, KC_BSLS, \
+  _______, KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,  KC_NUHS, KC_NUBS, _______, _______, _______, \
+  _______, _______, _______, _______, _______, _______, _______, _______, KC_MNXT, KC_VOLD, KC_VOLU, KC_MPLY \
+),
+
+/* Adjust (Lower + Raise)
+ * ,-----------------------------------------------------------------------------------.
+ * |      | Reset|      |      |      |      |      |      |      |      |      |  Del |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * |      |      |      |Aud on|Audoff|AGnorm|AGswap|Qwerty|Colemk|Dvorak|      |      |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * |      |      |      |      |      |      |      |      |      |      |      |      |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      |      |             |      |      |      |      |      |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_ADJUST] =  KEYMAP( \
+  _______, RESET,   _______, _______, _______, _______, _______, _______, _______, _______, _______, KC_DEL, \
+  _______, _______, _______, AU_ON,   AU_OFF,  AG_NORM, AG_SWAP, QWERTY,  COLEMAK, DVORAK,  _______, _______, \
+  _______, RGB_TOG, RGB_MOD, RGB_HUI, RGB_HUD, RGB_SAI, RGB_SAD, RGB_VAI, RGB_VAD, _______, _______, _______, \
+  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______ \
+)
+
+
+};
+
+#ifdef AUDIO_ENABLE
+float tone_qwerty[][2]     = SONG(QWERTY_SOUND);
+float tone_dvorak[][2]     = SONG(DVORAK_SOUND);
+float tone_colemak[][2]    = SONG(COLEMAK_SOUND);
+#endif
+
+void persistent_default_layer_set(uint16_t default_layer) {
+  eeconfig_update_default_layer(default_layer);
+  default_layer_set(default_layer);
+}
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+  switch (keycode) {
+    case QWERTY:
+      if (record->event.pressed) {
+        #ifdef AUDIO_ENABLE
+          PLAY_NOTE_ARRAY(tone_qwerty, false, 0);
+        #endif
+        persistent_default_layer_set(1UL<<_QWERTY);
+      }
+      return false;
+      break;
+    case COLEMAK:
+      if (record->event.pressed) {
+        #ifdef AUDIO_ENABLE
+          PLAY_NOTE_ARRAY(tone_colemak, false, 0);
+        #endif
+        persistent_default_layer_set(1UL<<_COLEMAK);
+      }
+      return false;
+      break;
+    case DVORAK:
+      if (record->event.pressed) {
+        #ifdef AUDIO_ENABLE
+          PLAY_NOTE_ARRAY(tone_dvorak, false, 0);
+        #endif
+        persistent_default_layer_set(1UL<<_DVORAK);
+      }
+      return false;
+      break;
+    case LOWER:
+      if (record->event.pressed) {
+        layer_on(_LOWER);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      } else {
+        layer_off(_LOWER);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      }
+      return false;
+      break;
+    case RAISE:
+      if (record->event.pressed) {
+        layer_on(_RAISE);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      } else {
+        layer_off(_RAISE);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      }
+      return false;
+      break;
+    case ADJUST:
+      if (record->event.pressed) {
+        layer_on(_ADJUST);
+      } else {
+        layer_off(_ADJUST);
+      }
+      return false;
+      break;
+  }
+  return true;
+}

keyboards/lets_split_vitamins/keymaps/mjt/rules.mk

@@ -0,0 +1,25 @@
+
+# Build Options
+#   change to "no" to disable the options, or define them in the Makefile in 
+#   the appropriate keymap folder that will get included automatically
+#
+BOOTMAGIC_ENABLE = no       # Virtual DIP switch configuration(+1000)
+MOUSEKEY_ENABLE = yes       # Mouse keys(+4700)
+EXTRAKEY_ENABLE = yes       # Audio control and System control(+450)
+CONSOLE_ENABLE = no         # Console for debug(+400)
+COMMAND_ENABLE = no        # Commands for debug and configuration
+NKRO_ENABLE = yes            # Nkey Rollover - if this doesn't work, see here: https://github.com/tmk/tmk_keyboard/wiki/FAQ#nkro-doesnt-work
+BACKLIGHT_ENABLE = no      # Enable keyboard backlight functionality
+MIDI_ENABLE = no            # MIDI controls
+AUDIO_ENABLE = no           # Audio output on port C6
+UNICODE_ENABLE = no         # Unicode
+BLUETOOTH_ENABLE = no       # Enable Bluetooth with the Adafruit EZ-Key HID
+RGBLIGHT_ENABLE = yes        # Enable WS2812 RGB underlight.  Do not enable this with audio at the same time.
+ONEHAND_ENABLE = no        # Enable one-hand typing
+
+# Do not enable SLEEP_LED_ENABLE. it uses the same timer as BACKLIGHT_ENABLE
+SLEEP_LED_ENABLE = no    # Breathing sleep LED during USB suspend
+
+ifndef QUANTUM_DIR
+	include ../../../../Makefile
+endif

keyboards/lets_split_vitamins/keymaps/piemod/README.md

@@ -0,0 +1,31 @@
+PieMod
+======
+
+A keymap for users that need:
+
+- *P*: Programming symbols.
+
+- *I*: i3wm.
+
+- *E*: Emacs.
+
+- *M*: Macros.
+
+- *O*: Ortholinear.
+
+- *D*: Dvorak.
+
+Still a work-in-progress. Suggestions welcome @ https://github.com/dwrz/piemod.
+
+### Keymap
+
+![PieMod Keymap](./keymap.png)
+
+### TODO
+
+- [ ] Add Emacs layer.
+- [ ] Add Macro layer.
+- [ ] Add system control keys (rotation, brightness).
+- [ ] Switch " and ' quotes (or function to toggle default).
+- [ ] Add capslock.
+.

keyboards/lets_split_vitamins/keymaps/piemod/config.h

@@ -0,0 +1,37 @@
+/*
+This is the c configuration file for the keymap
+
+Copyright 2012 Jun Wako <wakojun@gmail.com>
+Copyright 2015 Jack Humbert
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef CONFIG_USER_H
+#define CONFIG_USER_H
+
+#include "../../config.h"
+
+/* Use I2C or Serial, not both */
+
+#define USE_SERIAL
+// #define USE_I2C
+
+/* Select hand configuration */
+
+#define MASTER_LEFT
+// #define MASTER_RIGHT
+// #define EE_HANDS
+
+#endif

keyboards/lets_split_vitamins/keymaps/piemod/keymap.c

@@ -0,0 +1,121 @@
+#include "lets_split.h"
+#include "action_layer.h"
+#include "eeconfig.h"
+
+extern keymap_config_t keymap_config;
+
+#define _DVORAK 0
+#define _ARROW 1 //F(1)
+#define _SYMBOL 2 // F(2)
+#define _NUMBER 3 // F(3)
+#define _FUNCTION 4 // F(4)
+#define _EMACS 5 // F(5)
+#define _MACROS 6 // F(6)
+#define _MOUSE 7 // F(7)
+
+enum custom_keycodes {
+  DVORAK = SAFE_RANGE,
+  ARROW,
+  SYMBOL,
+  NUMBER,
+  FUNCTION,
+  EMACS,
+  MACROS,
+  MOUSE,
+};
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+[_DVORAK] = KEYMAP( \
+  KC_ESC,  KC_QUOTE,  F(7),  KC_DOT,  KC_P,  KC_Y,  KC_F,  KC_G,  KC_C,  KC_R,  KC_L,  KC_DELETE, \
+  KC_TAB,  F(1),  F(2),  F(3),  F(4),  KC_I,  KC_D,  KC_H,  KC_T,  KC_N,  KC_S,  KC_ENTER, \
+  KC_LSHIFT,  KC_SCOLON,  F(5),   KC_J,   KC_K,  KC_X,   KC_B,   KC_M,   KC_W,  KC_V,  KC_Z,  KC_MINUS, \
+  F(10), F(6),  KC_MENU, KC_LALT,  KC_LGUI,  KC_BSPACE,  KC_SPACE,  KC_RCTRL,  KC_LEFT,  KC_DOWN,  KC_UP, KC_RIGHT \
+),
+
+[_ARROW] = KEYMAP( \
+  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_HOME,  KC_UP,  KC_END,  KC_PGUP, \
+  KC_NO,  KC_TRNS,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_LEFT,  KC_DOWN,  KC_RIGHT,  KC_PGDN, \
+  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_HOME,  KC_PGDN,  KC_PGUP,  KC_END,  KC_NO, \
+  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO \
+),
+
+[_SYMBOL] = KEYMAP( \
+  KC_TILD,  KC_GRAVE,  KC_NO,  KC_EQUAL,  KC_PLUS,  KC_NO,  KC_LBRACKET,  KC_RBRACKET,  KC_AMPR,  KC_ASTR,  KC_LPRN,  KC_RPRN, \
+  KC_NO,  KC_NO,  KC_TRNS,  KC_SCOLON,  KC_COLN,  KC_NO,  KC_LCBR,  KC_RCBR,  KC_DLR,  KC_PERC,  KC_CIRC,  F(21), \
+  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_BSLASH,  KC_SLASH,  KC_EXLM,  KC_AT,  KC_HASH,  KC_PIPE, \
+  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_ASTR,   KC_SLASH,  KC_MINUS,  KC_PLUS,  KC_EQUAL \
+),
+
+[_NUMBER] = KEYMAP( \
+  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_7,  KC_8,  KC_9,  KC_NO, \
+  KC_NO,  KC_NO,  KC_NO,  KC_TRNS,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_4,  KC_5,  KC_6,  KC_NO, \
+ KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_0,  KC_1,  KC_2,  KC_3,  KC_NO, \
+  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_ASTR,  KC_SLASH,  KC_MINUS,  KC_PLUS,  KC_EQUAL \
+),
+
+[_FUNCTION] = KEYMAP( \
+  KC_PSCREEN,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_F1,  KC_F2,  KC_F3,  KC_F4,  KC_F5,  KC_F6, \
+  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_TRNS,  KC_NO,  KC_F7,  KC_F8,  KC_F9,  KC_F10,  KC_F11,  KC_F12, \
+  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO, KC_NO,  KC_AUDIO_MUTE,  KC_AUDIO_VOL_DOWN,  KC_AUDIO_VOL_UP,  KC_MEDIA_PLAY_PAUSE, \
+  RESET,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_DELETE,  KC_INSERT,  KC_HOME,  KC_PGDN,  KC_PGUP,  KC_END \
+),
+
+[_EMACS] = KEYMAP( \
+  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO, \
+  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO, \
+  KC_NO,  KC_TRNS,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO, \
+  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO \
+),
+
+[_MACROS] = KEYMAP( \
+  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO, \
+  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO, \
+  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO, \
+  KC_NO,  KC_TRNS,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO \
+),
+
+[_MOUSE] = KEYMAP( \
+  KC_NO,  KC_NO,  KC_TRNS,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_MS_U,  KC_NO,  KC_NO, \
+  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_MS_L,  KC_MS_D,  KC_MS_R,  KC_NO, \
+  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO, \
+  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_NO,  KC_MS_BTN1,  KC_MS_BTN2,  KC_MS_BTN3,  KC_NO,  KC_NO,  KC_NO \
+)
+};
+
+enum function_id {
+    TEENSY_KEY,
+    CUSTOM_KEY,
+    L_CTRL_ALT_ENT,
+    R_CTRL_ALT_ENT,
+};
+
+int CAPSLOCKED = 0;
+
+  const uint16_t PROGMEM fn_actions[] = {
+
+    // DVORAK 0
+    // ARROW 1, F(1)
+    // SYMBOL 2, F(2)
+    // NUMBER 3, F(3)
+    // FUNCTION 4, F(4)
+    // EMACS 5, F(5)
+    // MACROS 6, F(6)
+    // MOUSE 7, F(7)
+
+    // Layers
+    [1] =  ACTION_LAYER_TAP_KEY(1, KC_A),     // FN1 = Momentary Arrow layer on A.
+    [2] =  ACTION_LAYER_TAP_KEY(2, KC_O),     // FN2 = Momentary symbOl layer on O.
+    [3] =  ACTION_LAYER_TAP_KEY(3, KC_E),     // FN3 = Momentary numbEr layer on E.
+    [4] =  ACTION_LAYER_TAP_KEY(4, KC_U),     // FN4 = Momentary fUnction layer on U.
+    [5] =  ACTION_LAYER_TAP_KEY(5, KC_Q),     // FN5 = Momentary emaQs layer on Q. 
+    [6] =  ACTION_LAYER_TAP_KEY(6, KC_LCTRL), // FN6 = Momentary MACROS on ??? key.
+    [7] =  ACTION_LAYER_TAP_KEY(7, KC_COMMA), // FN7 = Momentary MOUSE on , key.
+
+    // Special Keys
+    [10] =  ACTION_MODS_KEY(KC_LCTRL, KC_LALT), // FN10 = Ctrl + Alt.
+    
+    // Symbols
+    [21] =  ACTION_MODS_KEY(MOD_LSFT, KC_SLASH), // FN21 = Question mark.
+
+  };

keyboards/lets_split_vitamins/keymaps/pitty/README.md

@@ -0,0 +1,91 @@
+# Pittyolo's Let's Split Layout
+
+This is my Let's Split layout, modified for my ISO Hungarian taste :)
+
+Added some layer feedback in the underglow, but it's still a WIP.
+
+I wrote the keys that will appear when using Hungarian layout in Windows and the respective English keys in brackets.
+
+
+ ### Qwerty
+```
+,-----------------------------------------------------------------------------------.
+| Tab  |   Q  |   W  |   E  |   R  |   T  |  Z(Y)|   U  |   I  |   O  |   P  | Bksp |
+|------+------+------+------+------+-------------+------+------+------+------+------|
+| Esc  |   A  |   S  |   D  |LTVIMF|   G  |   H  |   J  |   K  |   L  |  É(;)| Á(") |
+|------+------+------+------+------+------|------+------+------+------+------+------|
+|Í/Shft| Y(Z) |   X  |   C  |   V  |   B  |   N  |   M  |   ,  |   .  |  -(/)| Shift|
+|------+------+------+------+------+------+------+------+------+------+------+------|
+| Ctrl |  GUI |  Alt |ADJUST|  Spc | LOWER| Bksp | Ent  |  Alt | =(&) | GAME | Del  |
+`-----------------------------------------------------------------------------------'
+```
+ 
+ Tap left shift writes the missing ISO key, hold is Shift. 
+
+
+ ### Gaming mode (Toggle layer)
+```
+,-----------------------------------------------------------------------------------.
+|      |      |      |      |      |      |      |      |      |      |      |Lower |
+|------+------+------+------+------+------+------+------+------+------+------+------|
+|      |      |      |      |   F  |      |      |      |      |      |      |      |
+|------+------+------+------+------+------+------+------+------+------+------+------|
+| Shift|      |      |      |      |      |      |      |      |      |      |QWERTY|
+|------+------+------+------+------+------+------+------+------+------+------+------|
+|      |      |      |      |      |      |      |      | Left | Down |  Up  | Right|
+`-----------------------------------------------------------------------------------'
+```
+ 
+Disabled some of the functions in the main layer to help with better gaming experience.
+
+
+ ### Lower (Hold down right Space)
+```
+,-----------------------------------------------------------------------------------.
+| 0(') |   1  |   2  |   3  |   4  |   5  |   6  |   7  |   8  |   9  | Ö(0) | Ü(-) |
+|------+------+------+------+------+------+------+------+------+------+------+------|
+|  F10 |  F1  |  F2  |  F3  |  F4  |  F5  |  F6  |  F7  |  F8  |  F9  |  F11 |  F12 |
+|------+------+------+------+------+-------------+------+------+------+------+------|
+|      |      |      |      |      |      |      |      |  Ins | Home | PgUp | Shift|
+|------+------+------+------+------+------+------+------+------+------+------+------|
+|      |      |      |      |      |      |      |      |  Del | End  | PgDn | AltGr|
+`-----------------------------------------------------------------------------------'
+```
+ 
+ Function layer with everything that is missing from the main layer. 
+
+ 
+  ### NAV (double tap toggles the layer, and hold for momentary switch)
+```
+,-----------------------------------------------------------------------------------.
+|      |      |  Up  |      |  F2  |      |      |   7  |   8  |   9  |   /  |      |
+|------+------+------+------+------+------|------+------+------+------+------+------|
+|      | Left | Down | Right|      |      |      |   4  |   5  |   6  |   *  |      |
+|------+------+------+------+------+------|------+------+------+------+------+------|
+| Shift|      |      |      |      |      |      |   1  |   2  |   3  |   -  |      |
+|------+------+------+------+------+------|------+------+------+------+------+------|
+|      |      |      |      |      |      |      |   0  |   .  |   =  |   +  |      |
+`-----------------------------------------------------------------------------------'
+```
+ 
+ Navigation layer with a numpad on the right side. 
+
+ 
+ 
+ ### Vim Movement (Hold down F)
+```
+,-----------------------------------------------------------------------------------.
+|RGBMOD|RGBTOG|      |      |      |      |      |  Ú   |   Í  |   Ó  |   Ő  |  Ű   |
+|------+------+------+------+------+------+------+------+------+------+------+------|
+|DM_stp|      |      | LCTRL|      |      | Left | Down |  Up  | Right|      |      |
+|------+------+------+------+------+------+------+------+------+------+------+------|
+|DM_REC|      |      |      |      |      |      |      |      |      |      |      |
+|------+------+------+------+------+------+------+------+------+------+------+------|
+|      |      |      |      | LShft|      |      |      |      |      |      | RESET|
+`-----------------------------------------------------------------------------------'
+```
+ 
+ Turns hjkl into vim movement. I moved accented Hungarian letters here.
+ 
+
+ 

keyboards/lets_split_vitamins/keymaps/pitty/config.h

@@ -0,0 +1,26 @@
+#ifndef CONFIG_USER_H
+#define CONFIG_USER_H
+
+#include "../../config.h"
+
+/* Use I2C or Serial, not both */
+
+#define USE_SERIAL
+// #define USE_I2C
+
+/* Select hand configuration */
+
+#define MASTER_LEFT
+// #define MASTER_RIGHT
+// #define EE_HANDS
+
+#define TAPPING_TOGGLE 2
+
+#undef RGBLED_NUM
+#define RGBLIGHT_ANIMATIONS
+#define RGBLED_NUM 2
+#define RGBLIGHT_HUE_STEP 8
+#define RGBLIGHT_SAT_STEP 8
+#define RGBLIGHT_VAL_STEP 8
+
+#endif

keyboards/lets_split_vitamins/keymaps/pitty/keymap.c

@@ -0,0 +1,171 @@
+#include "lets_split.h"
+#include "action_layer.h"
+#include "eeconfig.h"
+
+//Following line allows macro to read current RGB settings
+extern rgblight_config_t rgblight_config;
+
+extern keymap_config_t keymap_config;
+
+#define _QWERTY 0
+#define _GAME 1
+#define _LOWER 2
+#define _NAV 3
+#define _VIM 4
+
+enum custom_keycodes {
+  QWERTY = SAFE_RANGE,
+  GAME,
+  LOWER,
+  NAV,
+  VIM,
+};
+
+
+// Fillers to make layering more clear
+#define _______ KC_TRNS
+#define XXXXXXX KC_NO
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+/* Qwerty
+ * ,-----------------------------------------------------------------------------------.
+ * | Tab  |   Q  |   W  |   E  |   R  |   T  |  Z(Y)|   U  |   I  |   O  |   P  | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Esc  |   A  |   S  |   D  |LTVIMF|   G  |   H  |   J  |   K  |   L  |  É(;)| Á(") |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * |Í/Shft| Y(Z) |   X  |   C  |   V  |   B  |   N  |   M  |   ,  |   .  |  -(/)| Shift|
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | Ctrl |  GUI |  Alt |ADJUST|  Spc | LOWER| Bksp | Ent  |  Alt | =(&) | GAME | Del  |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_QWERTY] = KEYMAP( \
+  KC_TAB,                KC_Q,      KC_W,    KC_E,     KC_R,           KC_T,               KC_Y,     KC_U,    KC_I,    KC_O,         KC_P,          KC_BSPC, \
+  KC_ESC,                KC_A,      KC_S,    KC_D,     LT(_VIM, KC_F), KC_G,               KC_H,     KC_J,    KC_K,    KC_L,         KC_SCLN,       KC_QUOT, \
+  MT(MOD_LSFT, KC_NUBS), KC_Z,      KC_X,    KC_C,     KC_V,           KC_B,               KC_N,     KC_M,    KC_COMM, KC_DOT,       KC_SLSH,       KC_RSFT, \
+  KC_LCTL,               KC_LGUI,   KC_LALT, TT(_NAV), KC_SPC,         LT(_LOWER, KC_SPC), KC_BSPC,  KC_ENT,  KC_RALT, KC_AMPERSAND, TG(_GAME),     KC_DEL \
+),
+
+/* Gaming mode
+ * ,-----------------------------------------------------------------------------------.
+ * |      |      |      |      |      |      |      |      |      |      |      |Lower |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      |   F  |      |      |      |      |      |      |      |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | Shift|      |      |      |      |      |      |      |      |      |      |QWERTY|
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      |      |      |      |      | Left | Down |  Up  | Right|
+ * `-----------------------------------------------------------------------------------'
+ */
+[_GAME] =  KEYMAP( \
+  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, OSL(_LOWER),    \
+  _______, _______, _______, _______, KC_F,    _______, _______, _______, _______, _______, _______, _______,    \
+  KC_LSFT, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, TO(_QWERTY),    \
+  _______, _______, _______, _______, _______, _______, _______, _______, KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT \
+),
+
+/* Lower
+ * ,-----------------------------------------------------------------------------------.
+ * | 0(') |   1  |   2  |   3  |   4  |   5  |   6  |   7  |   8  |   9  | Ö(0) | Ü(-) |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |  F10 |  F1  |  F2  |  F3  |  F4  |  F5  |  F6  |  F7  |  F8  |  F9  |  F11 |  F12 |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * |      |      |      |      |      |      |      |      |  Ins | Home | PgUp | Shift|
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      |      |      |      |      |  Del | End  | PgDn | AltGr|
+ * `-----------------------------------------------------------------------------------'
+ */
+[_LOWER] = KEYMAP( \
+  KC_GRV,  KC_1,    KC_2,    KC_3,    KC_4,    KC_5,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    KC_MINUS, \
+  KC_F10,  KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_F7,   KC_F8,   KC_F9,   KC_F11,  KC_F12, \
+  _______, _______, _______, _______, _______, _______, _______, _______, KC_INS,  KC_HOME, KC_PGUP, KC_RSFT, \
+  _______, _______, _______, _______, _______, _______, _______, _______, KC_DEL,  KC_END,  KC_PGDN, KC_RALT \
+),
+
+
+/* NAV
+ * ,-----------------------------------------------------------------------------------.
+ * |      |      |  Up  |      |  F2  |      |      |   7  |   8  |   9  |   /  |      |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * |      | Left | Down | Right|      |      |      |   4  |   5  |   6  |   *  |      |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | Shift|      |      |      |      |      |      |   1  |   2  |   3  |   -  |      |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * |      |      |      |      |      |      |      |   0  |   .  |   =  |   +  |      |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_NAV] = KEYMAP( \
+  _______,   _______, KC_UP,   _______, KC_F2,   _______, _______,  KC_7,    KC_8,      KC_9,         KC_KP_SLASH,    _______, \
+  _______,   KC_LEFT, KC_DOWN, KC_RGHT, _______, _______, _______,  KC_4,    KC_5,      KC_6,         KC_KP_ASTERISK, _______, \
+  KC_LSFT,   _______, _______, _______, _______, _______, _______,  KC_1,    KC_2,      KC_3,         KC_KP_MINUS,    _______, \
+  _______,   _______, _______, _______, _______, _______, _______,  KC_GRV,  KC_KP_DOT, KC_KP_EQUAL,  KC_KP_PLUS,     _______ \
+),
+
+/* Vim Movement (Hold down F)
+ * ,-----------------------------------------------------------------------------------.
+ * |RGBMOD|RGBTOG|      |      |      |      |      |  Ú   |   Í  |   Ó  |   Ő  |  Ű   |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |DM_stp|      |      | LCTRL|      |      | Left | Down |  Up  | Right|      |      |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |DM_REC|      |      |      |      |      |      |      |      |      |      |      |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      | LShft|      |      |      |      |      |      | RESET|
+ * `-----------------------------------------------------------------------------------'
+ */
+[_VIM] =  KEYMAP( \
+  RGB_MOD, RGB_TOG,  _______, _______, _______, _______, _______, KC_RBRC, KC_NUBS, KC_EQL , KC_LBRC, KC_NUHS, \
+  _______, _______,  _______, KC_LCTL, _______, _______, KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT, _______, _______, \
+  _______, _______,  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, \
+  _______, _______,  _______, _______, KC_LSFT, _______, _______, _______, _______, _______, _______, RESET \
+)
+
+
+};
+
+// define variables for reactive RGB
+bool RGB_INIT = false;
+bool TOG_STATUS = false;
+int RGB_current_mode;
+
+void persistent_default_layer_set(uint16_t default_layer) {
+  eeconfig_update_default_layer(default_layer);
+  default_layer_set(default_layer);
+}
+
+
+void matrix_scan_user(void) {
+   uint8_t layer = biton32(layer_state);
+   switch (layer) {
+     case _NAV:
+         if (RGB_INIT) {} else {
+           RGB_current_mode = rgblight_config.mode;
+           RGB_INIT = true;
+         }
+         if (TOG_STATUS) { //TOG_STATUS checks is another reactive key currently pressed, only changes RGB mode if returns false
+         } else {
+           TOG_STATUS = !TOG_STATUS;
+           rgblight_mode(29);
+         }
+         break;
+     case _LOWER:
+         if (RGB_INIT) {} else {
+           RGB_current_mode = rgblight_config.mode;
+           RGB_INIT = true;
+         }
+         if (TOG_STATUS) { //TOG_STATUS checks is another reactive key currently pressed, only changes RGB mode if returns false
+         } else {
+           TOG_STATUS = !TOG_STATUS;
+           rgblight_mode(29);
+         }
+         break;
+     case _QWERTY:
+         if (RGB_INIT) {} else {
+           RGB_current_mode = rgblight_config.mode;
+           RGB_INIT = true;
+         }
+         rgblight_mode(RGB_current_mode);   // revert RGB to initial mode prior to RGB mode change
+         TOG_STATUS = false;
+         break;
+   }
+ };
+ 

keyboards/lets_split_vitamins/keymaps/pitty/rules.mk

@@ -0,0 +1,6 @@
+RGBLIGHT_ENABLE = yes
+NKRO_ENABLE = yes
+
+ifndef QUANTUM_DIR
+	include ../../../../Makefile
+endif

keyboards/lets_split_vitamins/keymaps/poker/config.h

@@ -0,0 +1,37 @@
+/*
+This is the c configuration file for the keymap
+
+Copyright 2012 Jun Wako <wakojun@gmail.com>
+Copyright 2015 Jack Humbert
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef CONFIG_USER_H
+#define CONFIG_USER_H
+
+#include "../../config.h"
+
+/* Use I2C or Serial, not both */
+
+#define USE_SERIAL
+// #define USE_I2C
+
+/* Select hand configuration */
+
+#define MASTER_LEFT
+// #define MASTER_RIGHT
+// #define EE_HANDS
+
+#endif

keyboards/lets_split_vitamins/keymaps/poker/keymap.c

@@ -0,0 +1,241 @@
+#include "lets_split.h"
+#include "action_layer.h"
+#include "eeconfig.h"
+
+extern keymap_config_t keymap_config;
+
+// Each layer gets a name for readability, which is then used in the keymap matrix below.
+// The underscores don't mean anything - you can have a layer called STUFF or any other name.
+// Layer names don't all need to be of the same length, obviously, and you can also skip them
+// entirely and just use numbers.
+#define _QWERTY 0
+#define _COLEMAK 1
+#define _DVORAK 2
+#define _LOWER 3
+#define _RAISE 4
+#define _FN 5
+#define _ADJUST 16
+
+enum custom_keycodes {
+  QWERTY = SAFE_RANGE,
+  COLEMAK,
+  DVORAK,
+  LOWER,
+  RAISE,
+  FN,
+  ADJUST
+};
+
+// Fillers to make layering more clear
+#define _______ KC_TRNS
+#define XXXXXXX KC_NO
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+/* Qwerty
+ * ,-----------------------------------------------------------------------------------.
+ * | Tab  |   Q  |   W  |   E  |   R  |   T  |   Y  |   U  |   I  |   O  |   P  | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Func |   A  |   S  |   D  |   F  |   G  |   H  |   J  |   K  |   L  |   ;  |  "   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | Shift|   Z  |   X  |   C  |   V  |   B  |   N  |   M  |   ,  |   .  |   /  |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | Ctrl | GUI  | Esc  | Alt  |Lower |  Esc |Space |Raise | Left | Up   | Down |Right |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_QWERTY] = KEYMAP( \
+  KC_TAB         , KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,    KC_BSPC, \
+  FN             , KC_A,    KC_S,    KC_D,    KC_F,    KC_G,    KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN, KC_QUOT, \
+  SFT_T(KC_ESC)  , KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_N,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, MT(MOD_RSFT, KC_ENT), \
+  KC_LCTL        , KC_LGUI, KC_ESC,  KC_LALT, LOWER,   KC_ESC,  KC_SPC,  RAISE,   KC_LEFT, KC_UP,   KC_DOWN, KC_RGHT \
+),
+
+/* Colemak
+ * ,-----------------------------------------------------------------------------------.
+ * | Tab  |   Q  |   W  |   F  |   P  |   G  |   J  |   L  |   U  |   Y  |   ;  | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Func |   A  |   R  |   S  |   T  |   D  |   H  |   N  |   E  |   I  |   O  |  "   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | Shift|   Z  |   X  |   C  |   V  |   B  |   K  |   M  |   ,  |   .  |   /  |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | Ctrl | GUI  | Esc  | Alt  |Lower |  Esc |Space |Raise | Left | Down |  Up  |Right |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_COLEMAK] = KEYMAP( \
+  KC_TAB         , KC_Q,    KC_W,    KC_F,    KC_P,    KC_G,    KC_J,    KC_L,    KC_U,    KC_Y,    KC_SCLN, KC_BSPC, \
+  FN             , KC_A,    KC_R,    KC_S,    KC_T,    KC_D,    KC_H,    KC_N,    KC_E,    KC_I,    KC_O,    KC_QUOT, \
+  SFT_T(KC_ESC)  , KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_K,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, MT(MOD_RSFT, KC_ENT), \
+  KC_LCTL        , KC_LGUI, KC_ESC,  KC_LALT, LOWER,   KC_ESC,  KC_SPC,  RAISE,   KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT \
+),
+
+/* Dvorak
+ * ,-----------------------------------------------------------------------------------.
+ * | Tab  |   "  |   ,  |   .  |   P  |   Y  |   F  |   G  |   C  |   R  |   L  | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Func |   A  |   O  |   E  |   U  |   I  |   D  |   H  |   T  |   N  |   S  |  /   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | Shift|   ;  |   Q  |   J  |   K  |   X  |   B  |   M  |   W  |   V  |   Z  |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | Ctrl | GUI  | Esc  | Alt  |Lower |  Esc |Space |Raise | Left | Down |  Up  |Right |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_DVORAK] = KEYMAP( \
+  KC_TAB         , KC_QUOT, KC_COMM, KC_DOT,  KC_P,    KC_Y,    KC_F,    KC_G,    KC_C,    KC_R,    KC_L,    KC_BSPC, \
+  FN             , KC_A,    KC_O,    KC_E,    KC_U,    KC_I,    KC_D,    KC_H,    KC_T,    KC_N,    KC_S,    KC_SLSH, \
+  SFT_T(KC_ESC)  , KC_SCLN, KC_Q,    KC_J,    KC_K,    KC_X,    KC_B,    KC_M,    KC_W,    KC_V,    KC_Z,    MT(MOD_RSFT, KC_ENT), \
+  KC_LCTL        , KC_LGUI, KC_ESC,  KC_LALT, LOWER,   KC_ESC,  KC_SPC,  RAISE,   KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT \
+),
+
+/* Lower
+ * ,-----------------------------------------------------------------------------------.
+ * |   ~  |   !  |   @  |   #  |   $  |   %  |   ^  |   &  |   *  |   (  |   )  | Del  |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * |      |  F1  |  F2  |  F3  |  F4  |  F5  |  F6  |   _  |   +  |   {  |   }  |  |   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * |      |  F7  |  F8  |  F9  |  F10 |  F11 |  F12 |ISO ~ |ISO | | Home | End  |      |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      |      |      |      |      | Home |Pg Up |Pg Dn | End  |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_LOWER] = KEYMAP( \
+  KC_TILD, KC_EXLM, KC_AT,   KC_HASH, KC_DLR,  KC_PERC, KC_CIRC, KC_AMPR,    KC_ASTR,    KC_LPRN, KC_RPRN, KC_DEL , \
+  _______, KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_UNDS,    KC_PLUS,    KC_LCBR, KC_RCBR, KC_PIPE, \
+  _______, KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,  S(KC_NUHS), S(KC_NUBS), KC_HOME, KC_END,  _______, \
+  _______, _______, _______, _______, _______, _______, _______, _______,    KC_HOME,    KC_PGUP, KC_PGDN, KC_END \
+),
+
+/* Raise
+ * ,-----------------------------------------------------------------------------------.
+ * |   `  |   1  |   2  |   3  |   4  |   5  |   6  |   7  |   8  |   9  |   0  | Del  |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * |      |  F1  |  F2  |  F3  |  F4  |  F5  |  F6  |   -  |   =  |   [  |   ]  |  \   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * |      |  F7  |  F8  |  F9  |  F10 |  F11 |  F12 |ISO # |ISO / |Pg Up |Pg Dn |      |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      |      |      |      |      | Home |Pg Up |Pg Dn | End  |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_RAISE] = KEYMAP( \
+  KC_GRV,  KC_1,    KC_2,    KC_3,    KC_4,    KC_5,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    KC_DEL , \
+  _______, KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_MINS, KC_EQL,  KC_LBRC, KC_RBRC, KC_BSLS, \
+  _______, KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,  KC_NUHS, KC_NUBS, KC_PGUP, KC_PGDN, _______, \
+  _______, _______, _______, _______, _______, _______, _______, _______, KC_HOME, KC_PGUP, KC_PGDN, KC_END \
+),
+
+/* Function
+ * ,-----------------------------------------------------------------------------------.
+ * | Esc  |      | Prev | Play | Next |      |      |Pg Up |  Up  |Pg Dn |Prt Sc| Del  |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * |      |      | Vol- | Mute | Vol+ |      | Home | Left | Down |Right | End  |      |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * |      |      |      |      |      |      |      |      |      |      |      |      |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      | Esc  |      |      | Esc  | Home |Pg Up |Pg Dn | End  |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_FN] = KEYMAP( \
+  KC_ESC , _______, KC_MPRV, KC_MPLY, KC_MNXT, _______, _______, KC_PGUP, KC_UP,   KC_PGDN, KC_PSCR, KC_DEL, \
+  _______, _______, KC_VOLD, KC_MUTE, KC_VOLU, _______, KC_HOME, KC_LEFT, KC_DOWN, KC_RGHT, KC_END , _______, \
+  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, \
+  _______, _______, _______, _______, KC_ESC , _______, _______, KC_ESC , KC_HOME, KC_PGUP, KC_PGDN, KC_END \
+),
+
+/* Adjust (Lower + Raise)
+ * ,-----------------------------------------------------------------------------------.
+ * |      | Reset|      |      |      |      |      |      |      |      |      |  Del |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * |      |      |      |Aud on|Audoff|AGnorm|AGswap|Qwerty|Colemk|Dvorak|      |      |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | Caps |Voice-|Voice+|Mus on|Musoff|MIDIon|MIDIof|      |      |      |      | Caps |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      |      |      |      |      |      |      |      |      |
+ * `-----------------------------------------------------------------------------------'
+ */
+ [_ADJUST] = KEYMAP( \
+  _______, RESET,   DEBUG,   _______, _______, _______, _______, _______, _______, _______, _______, KC_DEL , \
+  _______, _______, MU_MOD,  AU_ON,   AU_OFF,  AG_NORM, AG_SWAP, QWERTY,  COLEMAK, DVORAK,  _______,  _______, \
+  KC_CAPS, MUV_DE,  MUV_IN,  MU_ON,   MU_OFF,  MI_ON,   MI_OFF,  _______, _______, _______, _______, KC_CAPS, \
+  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______ \
+ )
+
+};
+
+#ifdef AUDIO_ENABLE
+float tone_qwerty[][2]     = SONG(QWERTY_SOUND);
+float tone_dvorak[][2]     = SONG(DVORAK_SOUND);
+float tone_colemak[][2]    = SONG(COLEMAK_SOUND);
+#endif
+
+void persistent_default_layer_set(uint16_t default_layer) {
+  eeconfig_update_default_layer(default_layer);
+  default_layer_set(default_layer);
+}
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+  switch (keycode) {
+    case QWERTY:
+      if (record->event.pressed) {
+        #ifdef AUDIO_ENABLE
+          PLAY_SONG(tone_qwerty);
+        #endif
+        persistent_default_layer_set(1UL<<_QWERTY);
+      }
+      return false;
+      break;
+    case COLEMAK:
+      if (record->event.pressed) {
+        #ifdef AUDIO_ENABLE
+          PLAY_SONG(tone_colemak);
+        #endif
+        persistent_default_layer_set(1UL<<_COLEMAK);
+      }
+      return false;
+      break;
+    case DVORAK:
+      if (record->event.pressed) {
+        #ifdef AUDIO_ENABLE
+          PLAY_SONG(tone_dvorak);
+        #endif
+        persistent_default_layer_set(1UL<<_DVORAK);
+      }
+      return false;
+      break;
+    case LOWER:
+      if (record->event.pressed) {
+        layer_on(_LOWER);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      } else {
+        layer_off(_LOWER);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      }
+      return false;
+      break;
+    case RAISE:
+      if (record->event.pressed) {
+        layer_on(_RAISE);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      } else {
+        layer_off(_RAISE);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      }
+      return false;
+      break;
+    case FN:
+      if (record->event.pressed) {
+        layer_on(_FN);
+      } else {
+        layer_off(_FN);
+      }
+      return false;
+      break;
+    case ADJUST:
+      if (record->event.pressed) {
+        layer_on(_ADJUST);
+      } else {
+        layer_off(_ADJUST);
+      }
+      return false;
+      break;
+  }
+  return true;
+}

keyboards/lets_split_vitamins/keymaps/poker/rules.mk

@@ -0,0 +1,3 @@
+ifndef QUANTUM_DIR
+	include ../../../../Makefile
+endif

keyboards/lets_split_vitamins/keymaps/smt/config.h

@@ -0,0 +1,37 @@
+/*
+This is the c configuration file for the keymap
+
+Copyright 2012 Jun Wako <wakojun@gmail.com>
+Copyright 2015 Jack Humbert
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef CONFIG_USER_H
+#define CONFIG_USER_H
+
+#include "../../config.h"
+
+/* Use I2C or Serial, not both */
+
+#define USE_SERIAL
+// #define USE_I2C
+
+/* Select hand configuration */
+
+#define MASTER_LEFT
+// #define MASTER_RIGHT
+// #define EE_HANDS
+
+#endif

keyboards/lets_split_vitamins/keymaps/smt/keymap.c

@@ -0,0 +1,219 @@
+#include "lets_split.h"
+#include "action_layer.h"
+#include "eeconfig.h"
+
+extern keymap_config_t keymap_config;
+
+// Each layer gets a name for readability, which is then used in the keymap matrix below.
+// The underscores don't mean anything - you can have a layer called STUFF or any other name.
+// Layer names don't all need to be of the same length, obviously, and you can also skip them
+// entirely and just use numbers.
+#define _QWERTY 0
+#define _COLEMAK 1
+#define _DVORAK 2
+#define _LOWER 3
+#define _RAISE 4
+#define _ADJUST 16
+
+enum custom_keycodes {
+  QWERTY = SAFE_RANGE,
+  COLEMAK,
+  DVORAK,
+  LOWER,
+  RAISE,
+  ADJUST,
+};
+
+// Fillers to make layering more clear
+#define _______ KC_TRNS
+#define XXXXXXX KC_NO
+
+// Custom macros
+#define CTL_ESC     CTL_T(KC_ESC)               // Tap for Esc, hold for Ctrl
+#define SFT_ENT     SFT_T(KC_ENT)               // Tap for Enter, hold for Shift
+#define HPR_TAB     ALL_T(KC_TAB)               // Tap for Tab, hold for Hyper (Super+Ctrl+Alt+Shift)
+#define MEH_GRV     MEH_T(KC_GRV)               // Tap for Backtick, hold for Meh (Ctrl+Alt+Shift)
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+/* Qwerty
+ * ,-----------------------------------------. ,-----------------------------------------.
+ * | Tab  |   Q  |   W  |   E  |   R  |   T  | |   Y  |   U  |   I  |   O  |   P  | Bksp |
+ * |------+------+------+------+------+------| |------+------+------+------+------+------|
+ * | Esc  |   A  |   S  |   D  |   F  |   G  | |   H  |   J  |   K  |   L  |   ;  |  "   |
+ * |------+------+------+------+------+------| |------+------+------+------+------+------|
+ * | Shift|   Z  |   X  |   C  |   V  |   B  | |   N  |   M  |   ,  |   .  |   /  |Enter |
+ * |------+------+------+------+------+------| |------+------+------+------+------+------|
+ * |   `  | Ctrl | Alt  | GUI  |Lower |Space | |Space |Raise | Left | Down |  Up  |Right |
+ * `-----------------------------------------' `-----------------------------------------'
+ */
+[_QWERTY] = KEYMAP( \
+  HPR_TAB, KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,    KC_BSPC, \
+  CTL_ESC, KC_A,    KC_S,    KC_D,    KC_F,    KC_G,    KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN, KC_QUOT, \
+  KC_LSFT, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_N,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, SFT_ENT, \
+  MEH_GRV, KC_LCTL, KC_LALT, KC_LGUI, LOWER,   KC_SPC,  KC_SPC,  RAISE,   KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT
+),
+
+/* Colemak
+ * ,-----------------------------------------. ,-----------------------------------------.
+ * | Tab  |   Q  |   W  |   F  |   P  |   G  | |   J  |   L  |   U  |   Y  |   ;  | Bksp |
+ * |------+------+------+------+------+------| |------+------+------+------+------+------|
+ * | Esc  |   A  |   R  |   S  |   T  |   D  | |   H  |   N  |   E  |   I  |   O  |  "   |
+ * |------+------+------+------+------+------| |------+------+------+------+------+------|
+ * | Shift|   Z  |   X  |   C  |   V  |   B  | |   K  |   M  |   ,  |   .  |   /  |Enter |
+ * |------+------+------+------+------+------| |------+------+------+------+------+------|
+ * |   `  | Ctrl | Alt  | GUI  |Lower |Space | |Space |Raise | Left | Down |  Up  |Right |
+ * `-----------------------------------------' `-----------------------------------------'
+ */
+[_COLEMAK] = KEYMAP( \
+  HPR_TAB, KC_Q,    KC_W,    KC_F,    KC_P,    KC_G,    KC_J,    KC_L,    KC_U,    KC_Y,    KC_SCLN, KC_BSPC, \
+  CTL_ESC, KC_A,    KC_R,    KC_S,    KC_T,    KC_D,    KC_H,    KC_N,    KC_E,    KC_I,    KC_O,    KC_QUOT, \
+  KC_LSFT, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_K,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, SFT_ENT, \
+  MEH_GRV, KC_LCTL, KC_LALT, KC_LGUI, LOWER,   KC_SPC,  KC_SPC,  RAISE,   KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT
+),
+
+/* Dvorak
+ * ,-----------------------------------------. ,-----------------------------------------.
+ * | Tab  |   "  |   ,  |   .  |   P  |   Y  | |   F  |   G  |   C  |   R  |   L  | Bksp |
+ * |------+------+------+------+------+------| |------+------+------+------+------+------|
+ * | Esc  |   A  |   O  |   E  |   U  |   I  | |   D  |   H  |   T  |   N  |   S  |  -   |
+ * |------+------+------+------+------+------| |------+------+------+------+------+------|
+ * | Shift|   ;  |   Q  |   J  |   K  |   X  | |   B  |   M  |   W  |   V  |   Z  |Enter |
+ * |------+------+------+------+------+------| |------+------+------+------+------+------|
+ * |   `  | Ctrl | Alt  | GUI  |Lower |Space | |Space |Raise | Left | Down |  Up  |Right |
+ * `-----------------------------------------' `-----------------------------------------'
+ */
+[_DVORAK] = KEYMAP( \
+  HPR_TAB, KC_QUOT, KC_COMM, KC_DOT,  KC_P,    KC_Y,    KC_F,    KC_G,    KC_C,    KC_R,    KC_L,    KC_BSPC, \
+  CTL_ESC, KC_A,    KC_O,    KC_E,    KC_U,    KC_I,    KC_D,    KC_H,    KC_T,    KC_N,    KC_S,    KC_MINS, \
+  KC_LSFT, KC_SCLN, KC_Q,    KC_J,    KC_K,    KC_X,    KC_B,    KC_M,    KC_W,    KC_V,    KC_Z,    SFT_ENT, \
+  MEH_GRV, KC_LCTL, KC_LALT, KC_LGUI, LOWER,   KC_SPC,  KC_SPC,  RAISE,   KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT
+),
+
+/* Lower
+ * ,-----------------------------------------. ,-----------------------------------------.
+ * |   0  |   1  |   2  |   3  |   4  |   5  | |   6  |   7  |   8  |   9  |   0  | Del  |
+ * |------+------+------+------+------+------| |------+------+------+------+------+------|
+ * |   $  |  F1  |  F2  |  F3  |  F4  |  F5  | |  F6  |   4  |   5  |   6  |      |      |
+ * |------+------+------+------+------+------| |------+------+------+------+------+------|
+ * |      |  F7  |  F8  |  F9  |  F10 |  F11 | |  F12 |   1  |   2  |   3  |      |      |
+ * |------+------+------+------+------+------| |------+------+------+------+------+------|
+ * |      |      |      |      |      |      | |      |      | Next | Vol- | Vol+ | Play |
+ * `-----------------------------------------' `-----------------------------------------'
+ */
+[_LOWER] = KEYMAP( \
+  ALL_T(KC_0),   KC_1,    KC_2,    KC_3,    KC_4,    KC_5,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    KC_DEL, \
+  CTL_T(KC_DLR), KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_4,    KC_5,    KC_6,    _______, _______, \
+  _______,       KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,  KC_1,    KC_2,    KC_3,    _______, _______, \
+  _______,       _______, _______, _______, _______, _______, _______, _______, KC_MNXT, KC_VOLD, KC_VOLU, KC_MPLY
+),
+
+/* Raise
+ * ,-----------------------------------------. ,-----------------------------------------.
+ * |   ~  |   !  |   @  |   #  |   $  |   %  | |   ^  |   &  |   *  |   (  |   )  | Del  |
+ * |------+------+------+------+------+------| |------+------+------+------+------+------|
+ * |      |      |      |      |      |      | |   _  |   ?  |   +  |   {  |   }  |  |   |
+ * |------+------+------+------+------+------| |------+------+------+------+------+------|
+ * |      |      |      |      |      |      | |   -  |   /  |   =  |   [  |   ]  |  \   |
+ * |------+------+------+------+------+------| |------+------+------+------+------+------|
+ * |      |      |      |      |      |      | |      |      | Home |PageDn|PageUp| End  |
+ * `-----------------------------------------' `-----------------------------------------'
+ */
+[_RAISE] = KEYMAP( \
+  ALL_T(KC_TILD), KC_EXLM, KC_AT,   KC_HASH, KC_DLR,  KC_PERC, KC_CIRC, KC_AMPR, KC_ASTR, KC_LPRN, KC_RPRN, KC_DEL, \
+  _______,        _______, _______, _______, _______, _______, KC_UNDS, KC_QUES, KC_PLUS, KC_LCBR, KC_RCBR, KC_PIPE, \
+  _______,        _______, _______, _______, _______, _______, KC_MINS, KC_SLSH, KC_EQL,  KC_LBRC, KC_RBRC, SFT_T(KC_BSLS), \
+  _______,        _______, _______, _______, _______, _______, _______, _______, KC_HOME, KC_PGDN, KC_PGUP, KC_END
+),
+
+/* Adjust (Lower + Raise)
+ * ,-----------------------------------------. ,-----------------------------------------.
+ * |      | Reset|      |      |      |      | |      |      |      |      |      | Reset|
+ * |------+------+------+------+------+------| |------+------+------+------+------+------|
+ * |      |      |      |Aud on|Audoff|AGnorm| |AGswap|Qwerty|Colemk|Dvorak|      |      |
+ * |------+------+------+------+------+------| |------+------+------+------+------+------|
+ * |      |      |      |      |      |      | |      |      |      |      |      |      |
+ * |------+------+------+------+------+------| |------+------+------+------+------+------|
+ * |      |      |      |      |      |      | |      |      |      |      |      |      |
+ * `-----------------------------------------' `-----------------------------------------'
+ */
+[_ADJUST] = KEYMAP( \
+  _______, RESET,   _______, _______, _______, _______, _______, _______, _______, _______, _______, RESET, \
+  _______, _______, _______, AU_ON,   AU_OFF,  AG_NORM, AG_SWAP, QWERTY,  COLEMAK, DVORAK,  _______, _______, \
+  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, \
+  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______
+)
+
+};
+
+#ifdef AUDIO_ENABLE
+float tone_qwerty[][2]     = SONG(QWERTY_SOUND);
+float tone_dvorak[][2]     = SONG(DVORAK_SOUND);
+float tone_colemak[][2]    = SONG(COLEMAK_SOUND);
+#endif
+
+void persistent_default_layer_set(uint16_t default_layer) {
+  eeconfig_update_default_layer(default_layer);
+  default_layer_set(default_layer);
+}
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+  switch (keycode) {
+    case QWERTY:
+      if (record->event.pressed) {
+        #ifdef AUDIO_ENABLE
+          PLAY_SONG(tone_qwerty);
+        #endif
+        persistent_default_layer_set(1UL<<_QWERTY);
+      }
+      return false;
+      break;
+    case COLEMAK:
+      if (record->event.pressed) {
+        #ifdef AUDIO_ENABLE
+          PLAY_SONG(tone_colemak);
+        #endif
+        persistent_default_layer_set(1UL<<_COLEMAK);
+      }
+      return false;
+      break;
+    case DVORAK:
+      if (record->event.pressed) {
+        #ifdef AUDIO_ENABLE
+          PLAY_SONG(tone_dvorak);
+        #endif
+        persistent_default_layer_set(1UL<<_DVORAK);
+      }
+      return false;
+      break;
+    case LOWER:
+      if (record->event.pressed) {
+        layer_on(_LOWER);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      } else {
+        layer_off(_LOWER);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      }
+      return false;
+      break;
+    case RAISE:
+      if (record->event.pressed) {
+        layer_on(_RAISE);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      } else {
+        layer_off(_RAISE);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      }
+      return false;
+      break;
+    case ADJUST:
+      if (record->event.pressed) {
+        layer_on(_ADJUST);
+      } else {
+        layer_off(_ADJUST);
+      }
+      return false;
+      break;
+  }
+  return true;
+}

keyboards/lets_split_vitamins/keymaps/smt/readme.md

@@ -0,0 +1,88 @@
+# smt's Let's Split keymap
+
+This keymap is ported from my Planck keymap.
+
+
+## Qwerty
+
+```
+,-----------------------------------------. ,-----------------------------------------.
+| Tab  |   Q  |   W  |   E  |   R  |   T  | |   Y  |   U  |   I  |   O  |   P  | Bksp |
+|------+------+------+------+------+------| |------+------+------+------+------+------|
+| Esc  |   A  |   S  |   D  |   F  |   G  | |   H  |   J  |   K  |   L  |   ;  |  "   |
+|------+------+------+------+------+------| |------+------+------+------+------+------|
+| Shift|   Z  |   X  |   C  |   V  |   B  | |   N  |   M  |   ,  |   .  |   /  |Enter |
+|------+------+------+------+------+------| |------+------+------+------+------+------|
+|   `  | Ctrl | Alt  | GUI  |Lower |Space | |Space |Raise | Left | Down |  Up  |Right |
+`-----------------------------------------' `-----------------------------------------'
+```
+
+## Colemak
+
+```
+,-----------------------------------------. ,-----------------------------------------.
+| Tab  |   Q  |   W  |   F  |   P  |   G  | |   J  |   L  |   U  |   Y  |   ;  | Bksp |
+|------+------+------+------+------+------| |------+------+------+------+------+------|
+| Esc  |   A  |   R  |   S  |   T  |   D  | |   H  |   N  |   E  |   I  |   O  |  "   |
+|------+------+------+------+------+------| |------+------+------+------+------+------|
+| Shift|   Z  |   X  |   C  |   V  |   B  | |   K  |   M  |   ,  |   .  |   /  |Enter |
+|------+------+------+------+------+------| |------+------+------+------+------+------|
+|   `  | Ctrl | Alt  | GUI  |Lower |Space | |Space |Raise | Left | Down |  Up  |Right |
+`-----------------------------------------' `-----------------------------------------'
+```
+
+## Dvorak
+
+```
+,-----------------------------------------. ,-----------------------------------------.
+| Tab  |   "  |   ,  |   .  |   P  |   Y  | |   F  |   G  |   C  |   R  |   L  | Bksp |
+|------+------+------+------+------+------| |------+------+------+------+------+------|
+| Esc  |   A  |   O  |   E  |   U  |   I  | |   D  |   H  |   T  |   N  |   S  |  -   |
+|------+------+------+------+------+------| |------+------+------+------+------+------|
+| Shift|   ;  |   Q  |   J  |   K  |   X  | |   B  |   M  |   W  |   V  |   Z  |Enter |
+|------+------+------+------+------+------| |------+------+------+------+------+------|
+|   `  | Ctrl | Alt  | GUI  |Lower |Space | |Space |Raise | Left | Down |  Up  |Right |
+`-----------------------------------------' `-----------------------------------------'
+```
+
+## Lower
+
+```
+,-----------------------------------------. ,-----------------------------------------.
+|   0  |   1  |   2  |   3  |   4  |   5  | |   6  |   7  |   8  |   9  |   0  | Del  |
+|------+------+------+------+------+------| |------+------+------+------+------+------|
+|   $  |  F1  |  F2  |  F3  |  F4  |  F5  | |  F6  |   4  |   5  |   6  |      |      |
+|------+------+------+------+------+------| |------+------+------+------+------+------|
+|      |  F7  |  F8  |  F9  |  F10 |  F11 | |  F12 |   1  |   2  |   3  |      |      |
+|------+------+------+------+------+------| |------+------+------+------+------+------|
+|      |      |      |      |      |      | |      |      | Next | Vol- | Vol+ | Play |
+`-----------------------------------------' `-----------------------------------------'
+```
+
+## Raise
+
+```
+,-----------------------------------------. ,-----------------------------------------.
+|   ~  |   !  |   @  |   #  |   $  |   %  | |   ^  |   &  |   *  |   (  |   )  | Del  |
+|------+------+------+------+------+------| |------+------+------+------+------+------|
+|      |      |      |      |      |      | |   _  |   ?  |   +  |   {  |   }  |  |   |
+|------+------+------+------+------+------| |------+------+------+------+------+------|
+|      |      |      |      |      |      | |   -  |   /  |   =  |   [  |   ]  |  \   |
+|------+------+------+------+------+------| |------+------+------+------+------+------|
+|      |      |      |      |      |      | |      |      | Home |PageDn|PageUp| End  |
+`-----------------------------------------' `-----------------------------------------'
+```
+
+## Adjust (Lower + Raise)
+
+```
+,-----------------------------------------. ,-----------------------------------------.
+|      | Reset|      |      |      |      | |      |      |      |      |      | Reset|
+|------+------+------+------+------+------| |------+------+------+------+------+------|
+|      |      |      |Aud on|Audoff|AGnorm| |AGswap|Qwerty|Colemk|Dvorak|      |      |
+|------+------+------+------+------+------| |------+------+------+------+------+------|
+|      |      |      |      |      |      | |      |      |      |      |      |      |
+|------+------+------+------+------+------| |------+------+------+------+------+------|
+|      |      |      |      |      |      | |      |      |      |      |      |      |
+`-----------------------------------------' `-----------------------------------------'
+```

keyboards/lets_split_vitamins/keymaps/xk/config.h

@@ -0,0 +1,44 @@
+/*
+This is the c configuration file for the keymap
+
+Copyright 2012 Jun Wako <wakojun@gmail.com>
+Copyright 2015 Jack Humbert
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+*/
+
+#ifndef CONFIG_USER_H
+#define CONFIG_USER_H
+
+#include "../../config.h"
+
+#define TAPPING_TOGGLE 1
+#define TAPPING_TERM 300
+#define ONESHOT_TAP_TOGGLE 2
+#define ONESHOT_LAYER_TOGGLE 2
+#define ONESHOT_TIMEOUT 800
+
+#define USE_I2C
+
+#define MOUSEKEY_INTERVAL 50
+#define MOUSEKEY_DELAY 0
+#define MOUSEKEY_TIME_TO_MAX 60
+#define MOUSEKEY_MAX_SPEED 7
+
+#define MOUSEKEY_WHEEL_DELAY 0
+#define MOUSEKEY_WHEEL_MAX_SPEED   8
+#define MOUSEKEY_WHEEL_TIME_TO_MAX 40
+
+// #define MASTER_LEFT
+// #define MASTER_RIGHT
+#define EE_HANDS
+
+
+#define PREVENT_STUCK_MODIFIERS
+#define IGNORE_MOD_TAP_INTERRUPT
+#define PERMISSIVE_HOLD
+
+#endif

keyboards/lets_split_vitamins/keymaps/xk/keymap.c

@@ -0,0 +1,371 @@
+#include "lets_split.h"
+#include "action_layer.h"
+#include "eeconfig.h"
+
+extern keymap_config_t keymap_config;
+
+#define _COLEMAK  0
+#define _KAMELOC  1
+#define _IKAPILA  2
+#define _IKASHFT  3
+#define _ARROWKY  4
+#define _FNCTION  5
+#define _NINEKEY  6
+#define _NAVIGAT  7
+#define _QWERTY   8
+#define _MLAYER   9
+#define _GRVTABL  15
+
+enum custom_keycodes {
+  COLEMAK = SAFE_RANGE,
+  KAMELOC,
+  IKAPILA,
+  IKASHFT,
+  ARROWKY,
+  FNCTION,
+  NINEKEY,
+  NAVIGAT,
+  QWERTY,
+  MLAYER,
+  GRVTABL,
+};
+
+//TD Declarations
+enum {
+VOM = 0,
+PRN,
+EGT,
+HRD,
+XRD,
+DSH,
+ESC,
+EQE,
+PGN,
+HND,
+COD,
+UND,
+F11,
+F12,
+F13,
+F14,
+F15,
+F16,
+F17,
+F18,
+F19,
+F20,
+//unicode_inputctl
+LINUX,
+WIN,
+WINSH,
+OSX,
+};
+
+#define _______     KC_TRNS
+#define XXXXXXX     KC_NO
+
+// action-TAP for key/mod behavior LT(layer, KC)
+#define XK_TAB      LT(_FNCTION, KC_TAB)
+#define XK_BSP      LT(_KAMELOC, KC_BSPC)
+#define XK_APO      LT(_KAMELOC, KC_QUOT)
+
+#define XK_SPC    LT(_IKAPILA, KC_SPC)
+#define XK_ENT      LT(_IKAPILA, KC_ENT)
+#define XK_PGDN     LT(_IKASHFT, KC_PGDN)
+#define XK_PGUP     LT(_IKASHFT, KC_PGUP)
+#define PIPBOY      LT(_FNCTION, KC_BSLS)
+#define XK_DEL      LT(_IKASHFT, KC_DEL)
+#define XK_GRV      LT(_GRVTABL, KC_GRV)
+
+// mod-TAP for mod/key behavior MT(modkey, KC)
+#define ALT_IT      MT(MOD_RALT, KC_SCLN)
+#define CTL_IT      MT(MOD_RCTL, KC_DOT)
+#define SFT_ENT	    MT(MOD_RSFT, KC_ENT)
+
+//sticky modifiers
+#define KYCTL       OSM(MOD_LCTL)
+#define KYSFT       OSM(MOD_LSFT)
+#define CAKY        OSM(MOD_LCTL | MOD_LALT)
+
+//shortcuts
+#define CADEL       LALT(LCTL(KC_DEL))
+#define CAINS       LALT(LCTL(KC_INS))
+#define TGNKRO      MAGIC_TOGGLE_NKRO
+
+#define NAVCH       LCTL(KC_HOME)
+#define NAVCPD      LCTL(KC_PGDN)
+#define NAVCPU      LCTL(KC_PGUP)
+#define NAVCE       LCTL(KC_END)
+#define NAVCU       LCTL(KC_UP)
+#define NAVCD       LCTL(KC_DOWN)
+#define NAVCL       LCTL(KC_LEFT)
+#define NAVCR       LCTL(KC_RGHT)
+#define NAVGU       LGUI(KC_UP)
+#define NAVGD       LGUI(KC_DOWN)
+#define NAVGL       LGUI(KC_LEFT)
+#define NAVGR       LGUI(KC_RGHT)
+
+#define KC_NDSH     LCTL(KC_PMNS)
+#define KC_MDSH     LALT(LCTL(KC_PMNS))
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+/*
+  TAP
+  ┌────┬────┬────┬────┬────┬────┐    ┌────┬────┬────┬────┬────┬────┐
+  │TAB │ Q  │ W  │ F  │ P  │ B  │    │ J  │ L  │ U  │ Y  │ ;  │DEL │
+  ├────┼────┼────┼────┼────┼────┤    ├────┼────┼────┼────┼────┼────┤
+  │BKSP│ A  │ R  │ S  │ T  │ G  │    │ M  │ N  │ E  │ I  │ O  │ '  │
+  ├────┼────┼────┼────┼────┼────┤    ├────┼────┼────┼────┼────┼────┤
+  │OSFT│ X  │ C  │ D  │ V  │ Z  │    │ K  │ H  │ ,  │    │ .  │ /  │
+  ├────┼────┼────┼────┼────┼────┤    ├────┼────┼────┼────┼────┼────┤
+  │OCTL│GUI │ESC │ALT │PGUP│SPC │    │ENT │PGDN│ () │ {} │ \  │ `  │
+  └────┴────┴────┴────┴────┴────┘    └────┴────┴────┴────┴────┴────┘
+   HOLD
+  ┌────┬────┬────┬────┬────┬────┐    ┌────┬────┬────┬────┬────┬────┐
+  │L FN│    │    │    │    │    │    │    │    │    │    │ALT │L!@#│
+  ├────┼────┼────┼────┼────┼────┤    ├────┼────┼────┼────┼────┼────┤
+  │L OH│    │    │    │    │    │    │    │    │    │    │    │L OH│
+  ├────┼────┼────┼────┼────┼────┤    ├────┼────┼────┼────┼────┼────┤
+  │SFT │    │    │    │    │    │    │    │    │    │    │CTL │SFT │
+  ├────┼────┼────┼────┼────┼────┤    ├────┼────┼────┼────┼────┼────┤
+  │CTL │GUI │ESC │ALT │L!@#│L123│    │L123│L!@#│L  M│    │L FN│LGRV│
+  └────┴────┴────┴────┴────┴────┘    └────┴────┴────┴────┴────┴────┘
+   DOUBLETAP
+  ┌────┬────┬────┬────┬────┬────┐    ┌────┬────┬────┬────┬────┬────┐
+  │    │    │    │    │    │    │    │    │    │    │    │    │    │
+  ├────┼────┼────┼────┼────┼────┤    ├────┼────┼────┼────┼────┼────┤
+  │    │    │    │    │    │    │    │    │    │    │    │    │    │
+  ├────┼────┼────┼────┼────┼────┤    ├────┼────┼────┼────┼────┼────┤
+  │OSML│    │    │    │    │    │    │    │    │    │    │    │    │
+  ├────┼────┼────┼────┼────┼────┤    ├────┼────┼────┼────┼────┼────┤
+  │OSML│OSML│!F4 │    │    │    │    │    │    │    │    │    │    │
+  └────┴────┴────┴────┴────┴────┘    └────┴────┴────┴────┴────┴────┘
+  Switch type
+  ┌────┬────┬────┬────┬────┬────┐    ┌────┬────┬────┬────┬────┬────┐
+  │Br  │mxC │Z   │Z   │Z   │Z   │    │Z   │Z   │Z   │Z   │Br  │G   │
+  ├────┼────┼────┼────┼────┼────┤    ├────┼────┼────┼────┼────┼────┤
+  │G   │Z   │Z   │Z   │Z   │Z   │    │Z   │Z   │Z   │Z   │Z   │Z   │
+  ├────┼────┼────┼────┼────┼────┤    ├────┼────┼────┼────┼────┼────┤
+  │Y   │Z   │Z   │Z   │Z   │Z   │    │Z   │Z   │Z   │B   │B   │Y   │
+  ├────┼────┼────┼────┼────┼────┤    ├────┼────┼────┼────┼────┼────┤
+  │Y   │Y   │mxC │Z   │BLK │BLK │    │BLK │BLK │Z   │Z   │B   │G   │
+  └────┴────┴────┴────┴────┴────┘    └────┴────┴────┴────┴────┴────┘
+  with DCS keycaps
+  Top Row   R1 (reversed?)
+  M Row1    R3 (with reversed pointer finger)
+  M Row2    R4
+  B Row     R2 (reversed)
+*/
+
+// Colemak PB&J (Mod-DH)
+[_COLEMAK] = KEYMAP( \
+   XK_TAB,    KC_Q,    KC_W,    KC_F,    KC_P,    KC_B,            KC_J,    KC_L,        KC_U,         KC_Y,  ALT_IT,         XK_DEL, \
+   XK_BSP,    KC_A,    KC_R,    KC_S,    KC_T,    KC_G,            KC_M,    KC_N,        KC_E,         KC_I,    KC_O,         XK_APO, \
+    KYSFT,    KC_X,    KC_C,    KC_D,    KC_V,    KC_Z,            KC_K,    KC_H,     TD(COD),       KC_DOT,  CTL_IT, SFT_T(KC_SLSH), \
+    KYCTL, KC_LGUI, TD(ESC), KC_LALT, XK_PGUP,  XK_SPC,          XK_ENT, XK_PGDN, MO(_MLAYER), TT(_NAVIGAT),  PIPBOY,         XK_GRV \
+),
+
+// useful for one-handed typing
+[_KAMELOC] = KEYMAP( \
+   XK_DEL, KC_SCLN,    KC_Y,    KC_U,    KC_L,    KC_J,            KC_B,    KC_P,    KC_F,    KC_W,    KC_Q,  XK_TAB, \
+  _______,    KC_O,    KC_I,    KC_E,    KC_N,    KC_M,            KC_G,    KC_T,    KC_S,    KC_R,    KC_A, _______, \
+    KYSFT, KC_SLSH,  KC_DOT, KC_COMM,    KC_H,    KC_K,         TD(UND),    KC_V,    KC_D,    KC_C,    KC_X,   KYSFT, \
+   XK_GRV,  PIPBOY,    M(1), KC_BTN1, KC_HOME,  KC_ENT,          KC_ENT,  KC_END, KC_LGUI, TD(ESC), KC_LALT,   KYCTL \
+),
+
+/*
+  ┌────┬────┬────┬────┬────┬────┐    ┌────┬────┬────┬────┬────┬────┐
+  │    │ 1  │ 2  │ 3  │ 4  │ 5  │    │ 6  │ 7  │ 8  │ 9  │ 0  │    │
+  ├────┼────┼────┼────┼────┼────┤    ├────┼────┼────┼────┼────┼────┤
+  │    │ M  │ V- │ V+ │NEXT│PLAY│    │ ←  │ ↓  │ ↑  │ →  │DASH│INS │
+  ├────┼────┼────┼────┼────┼────┤    ├────┼────┼────┼────┼────┼────┤
+  │    │ -  │ =  │TGL │    │    │    │HOME│END │HOME│    │ \  │ ~  │
+  ├────┼────┼────┼────┼────┼────┤    ├────┼────┼────┼────┼────┼────┤
+  │    │    │    │    │    │    │    │    │    │    │    │    │    │
+  └────┴────┴────┴────┴────┴────┘    └────┴────┴────┴────┴────┴────┘
+*/
+[_IKAPILA] = KEYMAP( \
+  _______,    KC_1,    KC_2,    KC_3,    KC_4,       KC_5,            KC_6,    KC_7,    KC_8,    KC_9,    KC_0, _______, \
+  _______, KC_MUTE, KC_VOLD, KC_VOLU, KC_MNXT,    KC_MPLY,         KC_LEFT, KC_DOWN,   KC_UP, KC_RGHT, TD(DSH),  KC_INS, \
+  _______, KC_MINS,  KC_EQL, XXXXXXX, XXXXXXX, LCTL(KC_Z),         KC_HOME, TD(HND), KC_HOME, XXXXXXX, KC_BSLS, KC_TILD, \
+  _______, _______, _______, _______, _______,    _______,         _______, _______, _______, _______, _______, _______ \
+),
+
+/*
+  ┌────┬────┬────┬────┬────┬────┐    ┌────┬────┬────┬────┬────┬────┐
+  │    │ !  │ @  │ #  │ $  │ %  │    │ ^  │ &  │ *  │ (  │ )  │BSPC│
+  ├────┼────┼────┼────┼────┼────┤    ├────┼────┼────┼────┼────┼────┤
+  │DEL │    │ ←  │ ↓  │ ↑  │ →  │    │NEXT│PGUP│ V+ │ V- │DASH│PSCR│
+  ├────┼────┼────┼────┼────┼────┤    ├────┼────┼────┼────┼────┼────┤
+  │    │ _  │ +  │END │HOME│END │    │    │    │    │ [  │ ]  │    │
+  ├────┼────┼────┼────┼────┼────┤    ├────┼────┼────┼────┼────┼────┤
+  │    │    │    │    │    │    │    │    │    │    │    │    │    │
+  └────┴────┴────┴────┴────┴────┘    └────┴────┴────┴────┴────┴────┘
+*/
+
+[_IKASHFT] =  KEYMAP( \
+  _______, KC_EXLM,   KC_AT, KC_HASH,  KC_DLR, KC_PERC,         KC_CIRC, KC_AMPR, KC_ASTR, KC_LPRN, KC_RPRN, KC_BSPC, \
+   KC_DEL, TD(PGN), KC_LEFT, KC_DOWN,   KC_UP, KC_RGHT,         KC_MNXT, KC_PGUP, KC_VOLU, TD(VOM), KC_MDSH, KC_PSCR, \
+  _______, KC_UNDS, KC_PLUS,  KC_END, KC_HOME,  KC_END,            M(1),    M(0),    M(2), KC_LBRC, KC_RBRC, _______, \
+  _______, _______, _______, _______, _______, _______,         _______, _______, _______, _______, _______, _______ \
+),
+
+/*
+  ┌────┬────┬────┬────┬────┬────┐    ┌────┬────┬────┬────┬────┬────┐
+  │    │ →  │ ↑  │ ←  │ ↓  │ →  │    │ →  │ ↓  │ ←  │ ↑  │ ↑  │    │ just in case someone hacks my IP with a 10MeG pipe, you know?
+  ├────┼────┼────┼────┼────┼────┤    ├────┼────┼────┼────┼────┼────┤
+  │    │ ←  │ ↓  │ →  │ ↑  │ ←  │    │ ↑  │ ←  │ ↓  │ →  │ ←  │    │ hacker_evasion layer
+  ├────┼────┼────┼────┼────┼────┤    ├────┼────┼────┼────┼────┼────┤ >>init network SEQUENCE
+  │    │ ↑  │ ←  │ ↓  │ →  │ ↑  │    │ ↓  │ ←  │ ↑  │ →  │ ←  │    │   sleep 11; echo "DONE\n"
+  ├────┼────┼────┼────┼────┼────┤    ├────┼────┼────┼────┼────┼────┤   throttle INPUT 11001001 OUTPUT 010011001 ? FULL )); \
+  │    │    │    │ →  │ ←  │ ↓  │    │ →  │ ↑  │ ←  │ ↓  │ ↑  │    │ <<chKConfig cargoCode ==== "'1'"
+  └────┴────┴────┴────┴────┴────┘    └────┴────┴────┴────┴────┴────┘   up down left right KC_b KC_a GUI
+*/
+
+[_ARROWKY] =  KEYMAP( \
+
+
+  _______, KC_RGHT,   KC_UP, KC_LEFT, KC_DOWN, KC_RGHT,           KC_UP, KC_LEFT, KC_DOWN, KC_RGHT,   KC_UP, _______, \
+  _______, KC_LEFT, KC_DOWN, KC_RGHT,   KC_UP, KC_LEFT,         KC_DOWN, KC_RGHT,   KC_UP, KC_LEFT, KC_DOWN, _______, \
+  _______,   KC_UP, KC_LEFT, KC_DOWN, KC_RGHT,   KC_UP,         KC_LEFT, KC_DOWN, KC_RGHT, XXXXXXX, KC_LEFT, _______, \
+  _______, _______, KC_RGHT,   KC_UP, KC_LEFT, KC_DOWN,         KC_RGHT,   KC_UP, KC_LEFT, KC_DOWN, KC_RGHT, _______ \
+),
+
+/*
+  ┌────┬────┬────┬────┬────┬────┐    ┌────┬────┬────┬────┬────┬────┐
+  │    │ F1 │ F2 │ F3 │ F4 │ F5 │    │ F6 │ F7 │ F8 │ F9 │ F10│    │
+  ├────┼────┼────┼────┼────┼────┤    ├────┼────┼────┼────┼────┼────┤
+  │    │ F21│ F22│ F23│ F24│PAUS│    │    │SCLK│BOOT│    │NKRO│CAPS│
+  ├────┼────┼────┼────┼────┼────┤    ├────┼────┼────┼────┼────┼────┤
+  │    │    │    │    │    │    │    │    │    │    │    │    │    │
+  ├────┼────┼────┼────┼────┼────┤    ├────┼────┼────┼────┼────┼────┤
+  │    │    │    │    │    │    │    │    │    │    │    │    │    │
+  └────┴────┴────┴────┴────┴────┘    └────┴────┴────┴────┴────┴────┘
+*/
+
+[_FNCTION] =  KEYMAP( \
+  _______, TD(F11), TD(F12), TD(F13), TD(F14), TD(F15),         TD(F16), TD(F17), TD(F18), TD(F19), TD(F20), _______, \
+  _______,  KC_F21,  KC_F22,  KC_F23,  KC_F24, XXXXXXX,         XXXXXXX, KC_SLCK, XXXXXXX, XXXXXXX,  TGNKRO, XXXXXXX, \
+  _______, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,         XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, KC_CAPS, \
+  _______, _______, _______, _______, _______, _______,         _______, _______, _______, _______, _______, _______ \
+),
+
+/*
+  ┌────┬────┬────┬────┬────┬────┐    ┌────┬────┬────┬────┬────┬────┐
+  │    │ →  │ F7 │ F8 │ F9 │ ↑  │    │ P7 │ P8 │ P9 │NLCK│ P- │BDEL│
+  ├────┼────┼────┼────┼────┼────┤    ├────┼────┼────┼────┼────┼────┤
+  │    │ ←  │ F4 │ F5 │ F6 │ ↓  │    │ P4 │ P5 │ P6 │^INS│ P+ │ () │
+  ├────┼────┼────┼────┼────┼────┤    ├────┼────┼────┼────┼────┼────┤
+  │    │CALT│ F1 │ F2 │ F3 │    │    │ P1 │ P2 │ P3 │    │ P* │ =  │
+  ├────┼────┼────┼────┼────┼────┤    ├────┼────┼────┼────┼────┼────┤
+  │    │    │ F0?│    │    │    │    │ P0 │ 0  │ P. │TGL │ P/ │    │
+  └────┴────┴────┴────┴────┴────┘    └────┴────┴────┴────┴────┴────┘
+*/
+
+[_NINEKEY] =  KEYMAP( \
+  _______, KC_RGHT,   KC_F7,   KC_F8,   KC_F9,   KC_UP,       KC_P7,   KC_P8,   KC_P9,      KC_NLCK,KC_PMNS, KC_DEL, \
+  _______, KC_LEFT,   KC_F4,   KC_F5,   KC_F6, KC_DOWN,       KC_P4,   KC_P5,   KC_P6,        CAINS,KC_PPLS, M(0), \
+  _______,    CAKY,   KC_F1,   KC_F2,   KC_F3, XXXXXXX,       KC_P1,   KC_P2,   KC_P3,      XXXXXXX,KC_PAST, TD(EQE), \
+  _______, _______, _______,  KC_F11, _______, _______,       KC_P0,    KC_0, KC_PDOT,         CAKY,KC_PSLS, _______ \
+),
+
+/*
+  ┌────┬────┬────┬────┬────┬────┐    ┌────┬────┬────┬────┬────┬────┐
+  │ESC │^HOM│^PGD│^UP │^PGU│^PGU│    │    │MW_L│ MU │MW_R│ AC2│    │
+  ├────┼────┼────┼────┼────┼────┤    ├────┼────┼────┼────┼────┼────┤
+  │    │^END│^LFT│^DWN│^RGT│^PGD│    │    │ ML │ MD │ MR │ AC1│    │
+  ├────┼────┼────┼────┼────┼────┤    ├────┼────┼────┼────┼────┼────┤
+  │    │ M5 │ M2 │ M4 │ M3 │ M1 │    │    │MW_D│MW_U│    │ AC0│    │
+  ├────┼────┼────┼────┼────┼────┤    ├────┼────┼────┼────┼────┼────┤
+  │    │    │    │    │    │    │    │    │    │    │    │    │    │
+  └────┴────┴────┴────┴────┴────┘    └────┴────┴────┴────┴────┴────┘
+*/
+
+[_NAVIGAT] =  KEYMAP( \
+   KC_ESC,   NAVCH,  NAVCPD,   NAVCU,  NAVCPU,  NAVCPU,         XXXXXXX, KC_WH_L, KC_MS_U, KC_WH_R, KC_ACL2, _______, \
+  _______,   NAVCE,   NAVCL,   NAVCD,   NAVCR,  NAVCPD,         XXXXXXX, KC_MS_L, KC_MS_D, KC_MS_R, KC_ACL1, _______, \
+  _______, KC_BTN5, KC_BTN2, KC_BTN4, KC_BTN3, KC_BTN1,         XXXXXXX, KC_WH_D, KC_WH_U, XXXXXXX, KC_ACL0, _______, \
+  _______, _______, _______, _______, _______, _______,         _______, _______, _______, _______, _______, _______ \
+),
+
+//ew. jk
+[_QWERTY] = KEYMAP( \
+  _______,    KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,            KC_Y,    KC_U,    KC_I,    KC_O,    KC_P, KC_BSPC, \
+  _______,    KC_A,    KC_S,    KC_D,    KC_F,    KC_G,            KC_H,    KC_J,    KC_K,    KC_L, KC_SCLN, KC_QUOT, \
+  _______,    KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,            KC_N,    KC_M, KC_COMM,  KC_DOT, KC_SLSH, SFT_ENT, \
+  _______, _______, _______, _______, _______, _______,         _______, _______, _______, _______, _______, _______ \
+),
+
+[_MLAYER] =  KEYMAP( \
+  _______,UC(0x250C),UC(0x252C),UC(0x2510),UC(0x2500),UC(0x2502),       _______, _______, _______, _______, _______, _______, \
+  KC_QUOT,UC(0x251C),UC(0x253C),UC(0x2524),   _______,   _______,          M(1),    M(0),    M(2), _______, _______, _______, \
+  _______,UC(0x2514),UC(0x2534),UC(0x2518),   _______,   _______,       _______, _______, _______, _______, _______, _______, \
+  _______,     WINSH,       WIN,       OSX,   _______,   _______,       _______, _______, _______, _______, _______, _______ \
+),
+
+[_GRVTABL] =  KEYMAP( \
+    TG(5),LALT(KC_PSCR),    M(4),  KC_PWR,KC_POWER,   RESET,           RESET,    KC_R,    KC_E,    KC_I,LALT(KC_PSCR),TG(3), \
+    TG(1),        TG(6),   TG(7),   TG(9),   TG(3),   TG(2),           TG(2),    KC_S,    KC_U,    KC_B,   TG(6),   TG(1), \
+     M(3),        TG(8), XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,         KC_MYCM, KC_CALC, XXXXXXX, XXXXXXX,   TG(8),    M(3), \
+   TT(15),        TG(6),   TG(7),   TG(9),   TG(3),   TG(2),           TG(2),   TG(3),   TG(9),   TG(7),   TG(6), _______ \
+)};
+
+
+qk_tap_dance_action_t tap_dance_actions[] = {
+ [VOM] = ACTION_TAP_DANCE_DOUBLE(KC_VOLD, KC_MUTE),
+ [PRN] = ACTION_TAP_DANCE_DOUBLE(KC_LPRN, KC_RPRN),
+ [EGT] = ACTION_TAP_DANCE_DOUBLE(KC_LCBR, KC_RCBR),
+ [HRD] = ACTION_TAP_DANCE_DOUBLE(KC_LBRC, KC_RBRC),
+ [DSH] = ACTION_TAP_DANCE_DOUBLE(KC_NDSH, KC_MDSH),
+ [ESC] = ACTION_TAP_DANCE_DOUBLE(KC_ESC,  LALT(KC_F4)),
+ [EQE] = ACTION_TAP_DANCE_DOUBLE(KC_EQL,  KC_ENT),
+ [UND] = ACTION_TAP_DANCE_DOUBLE(KC_Z,    LCTL(KC_Z)),
+ [PGN] = ACTION_TAP_DANCE_DOUBLE(KC_PGDN, KC_PGUP),
+ [HND] = ACTION_TAP_DANCE_DOUBLE(KC_HOME, KC_END),
+ [COD] = ACTION_TAP_DANCE_DOUBLE(KC_COMM, KC_DOT),
+ [F11] = ACTION_TAP_DANCE_DOUBLE(KC_F1,   KC_F11),
+ [F12] = ACTION_TAP_DANCE_DOUBLE(KC_F2,   KC_F12),
+ [F13] = ACTION_TAP_DANCE_DOUBLE(KC_F3,   KC_F13),
+ [F14] = ACTION_TAP_DANCE_DOUBLE(KC_F4,   KC_F14),
+ [F15] = ACTION_TAP_DANCE_DOUBLE(KC_F5,   KC_F15),
+ [F16] = ACTION_TAP_DANCE_DOUBLE(KC_F6,   KC_F16),
+ [F17] = ACTION_TAP_DANCE_DOUBLE(KC_F7,   KC_F17),
+ [F18] = ACTION_TAP_DANCE_DOUBLE(KC_F8,   KC_F18),
+ [F19] = ACTION_TAP_DANCE_DOUBLE(KC_F9,   KC_F19),
+ [F20] = ACTION_TAP_DANCE_DOUBLE(KC_F10,  KC_F20),
+};
+
+void matrix_init_user(){
+  set_unicode_input_mode(UC_LNX);
+}
+
+const macro_t *action_get_macro(keyrecord_t *record, uint8_t id, uint8_t opt) {
+  if (record->event.pressed) {
+    switch(id) {
+  case 0:
+    return MACRO( D(LSFT), T(9), U(LSFT), D(LSFT), T(0), U(LSFT), T(LEFT), END );
+  case 1:
+    return MACRO( D(LSFT), T(LBRC), U(LSFT), D(LSFT), T(RBRC), U(LSFT), T(LEFT), END );
+  case 2:
+    return MACRO( T(LBRC), T(RBRC), T(LEFT), END);
+  case 3:
+    clear_keyboard();
+  case 4:
+    return MACRO( D(LSFT), T(SCOLON), U(LSFT), D(LSFT), T(9), U(LSFT), D(LSFT), T(0), U(LSFT), D(LSFT), T(LBRACKET), U(LSFT), D(LSFT), T(9), U(LSFT), D(LSFT), T(SCOLON), U(LSFT), D(LSFT), T(0), U(LSFT), D(LSFT), T(BSLASH), U(LSFT), D(LSFT), T(SCOLON), U(LSFT), D(LSFT), T(7), U(LSFT), D(LSFT), T(RBRACKET), U(LSFT), T(SCOLON), D(LSFT), T(SCOLON), U(LSFT), END );
+  case WINSH:
+    set_unicode_input_mode(UC_WIN);
+    return false;
+    break;
+  case WIN:
+    set_unicode_input_mode(UC_WINC);
+    return false;
+    break;
+  case OSX:
+    set_unicode_input_mode(UC_OSX);
+    return false;
+    break;
+   }
+  }
+ return MACRO_NONE;
+};

keyboards/lets_split_vitamins/keymaps/xk/rules.mk

@@ -0,0 +1,19 @@
+MOUSEKEY_ENABLE = yes       # Mouse keys(+4700)
+EXTRAKEY_ENABLE = yes       # Audio control and System control(+450)
+NKRO_ENABLE = no           # Nkey Rollover - if this doesn't work, see here: https://github.com/tmk/tmk_keyboard/wiki/FAQ#nkro-doesnt-work
+USE_I2C = yes
+TAP_DANCE_ENABLE = yes
+
+CONSOLE_ENABLE = no         # Console for debug(+400)
+COMMAND_ENABLE = no         # Commands for debug and configuration
+BACKLIGHT_ENABLE = no       # Enable keyboard backlight functionality
+MIDI_ENABLE = no            # MIDI controls
+AUDIO_ENABLE = no           # Audio output on port C6
+UNICODE_ENABLE = yes         # Unicode
+BLUETOOTH_ENABLE = no       # Enable Bluetooth with the Adafruit EZ-Key HID
+RGBLIGHT_ENABLE = no        # Enable WS2812 RGB underlight.  Do not enable this with audio at the same time.
+BOOTMAGIC_ENABLE = no       # Virtual DIP switch configuration(+1000)
+
+ifndef QUANTUM_DIR
+	include ../../../../Makefile
+endif

keyboards/lets_split_vitamins/keymaps/xyverz/config.h

@@ -0,0 +1,45 @@
+/*
+This is the c configuration file for the keymap
+
+Copyright 2012 Jun Wako <wakojun@gmail.com>
+Copyright 2015 Jack Humbert
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef CONFIG_USER_H
+#define CONFIG_USER_H
+
+#include "../../config.h"
+
+/* Use I2C or Serial, not both */
+
+#define USE_SERIAL
+// #define USE_I2C
+
+/* Select hand configuration */
+
+#define MASTER_LEFT
+// #define MASTER_RIGHT
+// #define EE_HANDS
+
+
+#ifdef SUBPROJECT_rev2
+    /* RGB Underglow */
+    #undef RGBLED_NUM
+    #define RGBLIGHT_ANIMATIONS
+    #define RGBLED_NUM 8
+#endif
+
+#endif

keyboards/lets_split_vitamins/keymaps/xyverz/keymap.c

@@ -0,0 +1,191 @@
+#include "lets_split.h"
+#include "action_layer.h"
+#include "eeconfig.h"
+
+extern keymap_config_t keymap_config;
+
+// Each layer gets a name for readability, which is then used in the keymap matrix below.
+// The underscores don't mean anything - you can have a layer called STUFF or any other name.
+// Layer names don't all need to be of the same length, obviously, and you can also skip them
+// entirely and just use numbers.
+#define _QWERTY 0
+#define _COLEMAK 1
+#define _DVORAK 2
+#define _LOWER 3
+#define _RAISE 4
+#define _ADJUST 16
+
+enum planck_keycodes {
+  QWERTY = SAFE_RANGE,
+  COLEMAK,
+  DVORAK,
+  LOWER,
+  RAISE,
+  ADJUST
+};
+
+// Fillers to make layering more clear
+#define _______ KC_TRNS
+#define XXXXXXX KC_NO
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+/* Qwerty
+ * ,-----------------------------------------------------------------------------------.
+ * | Tab  |   Q  |   W  |   E  |   R  |   T  |   Y  |   U  |   I  |   O  |   P  | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Esc  |   A  |   S  |   D  |   F  |   G  |   H  |   J  |   K  |   L  |   ;  |  "   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | Shift|   Z  |   X  |   C  |   V  |   B  |   N  |   M  |   ,  |   .  |   /  |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | Brite| Ctrl | Alt  | GUI  |Lower | Bksp |Space |Raise | Left | Down |  Up  |Right |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_QWERTY] = KEYMAP ( \
+  KC_TAB,  KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,    KC_BSPC, \
+  KC_ESC,  KC_A,    KC_S,    KC_D,    KC_F,    KC_G,    KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN, KC_QUOT, \
+  KC_LSFT, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_N,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, KC_RSFT,\
+  KC_LCTL, KC_LALT, KC_LEFT, KC_RGHT, LOWER,   GUI_T(KC_BSPC), KC_SPC,  RAISE,   KC_UP,   KC_DOWN, KC_RGUI, KC_ENT \
+),
+
+/* Colemak
+ * ,-----------------------------------------------------------------------------------.
+ * | Tab  |   Q  |   W  |   F  |   P  |   G  |   J  |   L  |   U  |   Y  |   ;  | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Esc  |   A  |   R  |   S  |   T  |   D  |   H  |   N  |   E  |   I  |   O  |  "   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | Shift|   Z  |   X  |   C  |   V  |   B  |   K  |   M  |   ,  |   .  |   /  |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | Brite| Ctrl | Alt  | GUI  |Lower | Bksp |Space |Raise | Left | Down |  Up  |Right |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_COLEMAK] = KEYMAP ( \
+  KC_TAB,  KC_Q,    KC_W,    KC_F,    KC_P,    KC_G,    KC_J,    KC_L,    KC_U,    KC_Y,    KC_SCLN, KC_BSPC, \
+  KC_ESC,  KC_A,    KC_R,    KC_S,    KC_T,    KC_D,    KC_H,    KC_N,    KC_E,    KC_I,    KC_O,    KC_QUOT, \
+  KC_LSFT, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_K,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, KC_RSFT, \
+  KC_LCTL, KC_LALT, KC_LEFT, KC_RGHT, LOWER,   GUI_T(KC_BSPC), KC_SPC,  RAISE,   KC_UP,   KC_DOWN, KC_RGUI, KC_ENT \
+),
+
+/* Dvorak
+ * ,-----------------------------------------------------------------------------------.
+ * | Tab  |   "  |   ,  |   .  |   P  |   Y  |   F  |   G  |   C  |   R  |   L  |  /   |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Esc  |   A  |   O  |   E  |   U  |   I  |   D  |   H  |   T  |   N  |   S  |  -   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | Shift|   ;  |   Q  |   J  |   K  |   X  |   B  |   M  |   W  |   V  |   Z  | Shift|
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | Ctrl | Alt  | Left |Right |Lower | Bksp |Space |Raise |  Up  | Down |  GUI |Enter |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_DVORAK] = KEYMAP ( \
+  KC_TAB,  KC_QUOT, KC_COMM, KC_DOT,  KC_P,    KC_Y,    KC_F,    KC_G,    KC_C,    KC_R,    KC_L,    KC_SLSH, \
+  KC_ESC,  KC_A,    KC_O,    KC_E,    KC_U,    KC_I,    KC_D,    KC_H,    KC_T,    KC_N,    KC_S,    KC_MINS, \
+  KC_LSFT, KC_SCLN, KC_Q,    KC_J,    KC_K,    KC_X,    KC_B,    KC_M,    KC_W,    KC_V,    KC_Z,    KC_RSFT, \
+  KC_LCTL, KC_LALT, KC_LEFT, KC_RGHT, LOWER,   GUI_T(KC_BSPC), KC_SPC,  RAISE,   KC_UP,   KC_DOWN, KC_RGUI, KC_ENT \
+),
+
+/* Lower
+ * ,-----------------------------------------------------------------------------------.
+ * |   ~  |   !  |   @  |   #  |   $  |   %  |   ^  |   &  |   *  |   (  |   )  |      |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Caps |  F1  |  F2  |  F3  |  F4  |  F5  |  F6  |   _  |   +  |   {  |   }  |  |   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * |      |  F7  |  F8  |  F9  |  F10 |  F11 |  F12 |      | Mute | Vol- | Vol+ |      |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | Brite|      | Home |  End |      |  Del |  Ins |      | PgUp | PgDN |      |Enter |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_LOWER] = KEYMAP ( \
+  KC_TILD, KC_EXLM, KC_AT,   KC_HASH, KC_DLR,  KC_PERC, KC_CIRC, KC_AMPR, KC_ASTR, KC_LPRN, KC_RPRN, _______, \
+  KC_CAPS, KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_UNDS, KC_PLUS, KC_LCBR, KC_RCBR, KC_PIPE, \
+  _______, KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,  KC_MUTE, KC_VOLD, KC_VOLU, _______, _______, \
+  _______, _______, KC_HOME, KC_END,  _______, KC_DEL,  KC_INS,  _______, KC_PGUP, KC_PGDN, _______, _______ \
+),
+
+/* Raise
+ * ,-----------------------------------------------------------------------------------.
+ * |   `  |   1  |   2  |   3  |   4  |   5  |   6  |   7  |   8  |   9  |   0  |      |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Caps |  F1  |  F2  |  F3  |  F4  |  F5  |  F6  |   -  |   =  |   [  |   ]  |  \   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * |      |  F7  |  F8  |  F9  |  F10 |  F11 |  F12 |      | Prev | Play | Next |      |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | Brite|      | Home |  End |      |  Del |  Ins |      | PgUp | PgDN |      |Enter |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_RAISE] = KEYMAP ( \
+  KC_GRV,  KC_1,    KC_2,    KC_3,    KC_4,    KC_5,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    _______, \
+  KC_CAPS, KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_MINS, KC_EQL,  KC_LBRC, KC_RBRC, KC_BSLS, \
+  _______, KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,  KC_MPRV, KC_MPLY, KC_MNXT, _______, _______, \
+  _______, _______, KC_HOME, KC_END,  _______, KC_DEL,  KC_INS,  _______, KC_PGUP, KC_PGDN, _______, _______ \
+),
+
+/* Adjust (Lower + Raise)
+ * ,-----------------------------------------------------------------------------------.
+ * |  F11 |  F1  |  F2  |  F3  |  F4  |  F5  |  F6  |  F7  |  F8  |  F9  |  F10 |  F12 |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * |      | Reset|      |Aud on|Audoff|AGnorm|AGswap|Qwerty|Colemk|Dvorak|      |      |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * |      |RGB ON| MODE | HUE+ | HUE- | SAT+ | SAT- | VAL+ | VAL- |      |      |      |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      |      |             |      |      |      |      |      |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_ADJUST] = KEYMAP ( \
+  KC_F11,  KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F12 , \
+  _______, RESET,   _______, _______, _______, AG_NORM, AG_SWAP, QWERTY,  COLEMAK, DVORAK,  _______, _______, \
+  _______, RGB_TOG, RGB_MOD, RGB_HUI, RGB_HUD, RGB_SAI, RGB_SAD, RGB_VAI, RGB_VAD, _______, _______, _______, \
+  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______ \
+)
+
+
+};
+
+void persistent_default_layer_set(uint16_t default_layer) {
+  eeconfig_update_default_layer(default_layer);
+  default_layer_set(default_layer);
+}
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+  switch (keycode) {
+    case QWERTY:
+      if (record->event.pressed) {
+        persistent_default_layer_set(1UL<<_QWERTY);
+      }
+      return false;
+      break;
+    case COLEMAK:
+      if (record->event.pressed) {
+        persistent_default_layer_set(1UL<<_COLEMAK);
+      }
+      return false;
+      break;
+    case DVORAK:
+      if (record->event.pressed) {
+        persistent_default_layer_set(1UL<<_DVORAK);
+      }
+      return false;
+      break;
+    case LOWER:
+      if (record->event.pressed) {
+        layer_on(_LOWER);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      } else {
+        layer_off(_LOWER);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      }
+      return false;
+      break;
+    case RAISE:
+      if (record->event.pressed) {
+        layer_on(_RAISE);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      } else {
+        layer_off(_RAISE);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      }
+      return false;
+      break;
+  }
+  return true;
+}

keyboards/lets_split_vitamins/lets_split.c

@@ -0,0 +1,16 @@
+#include "lets_split.h"
+
+#ifdef ONEHAND_ENABLE
+__attribute__ ((weak))
+const keypos_t hand_swap_config[MATRIX_ROWS][MATRIX_COLS] = {
+
+  {{0, 4}, {1, 4}, {2, 4}, {3, 4}, {4, 4}, {5, 4}},
+  {{0, 5}, {1, 5}, {2, 5}, {3, 5}, {4, 5}, {5, 5}},
+  {{0, 6}, {1, 6}, {2, 6}, {3, 6}, {4, 6}, {5, 6}},
+  {{0, 7}, {1, 7}, {2, 7}, {3, 7}, {4, 7}, {5, 7}},
+  {{0, 0}, {1, 0}, {2, 0}, {3, 0}, {4, 0}, {5, 0}},
+  {{0, 1}, {1, 1}, {2, 1}, {3, 1}, {4, 1}, {5, 1}},
+  {{0, 2}, {1, 2}, {2, 2}, {3, 2}, {4, 2}, {5, 2}},
+  {{0, 3}, {1, 3}, {2, 3}, {3, 3}, {4, 3}, {5, 3}},
+};
+#endif

keyboards/lets_split_vitamins/lets_split.h

@@ -0,0 +1,25 @@
+#ifndef LETS_SPLIT_VITAMINS_H
+#define LETS_SPLIT_VITAMINS_H
+
+#include "quantum.h"
+
+#include "rev1.h"
+
+
+// Used to create a keymap using only KC_ prefixed keys
+#define KC_KEYMAP( \
+    L00, L01, L02, L03, L04, L05, R00, R01, R02, R03, R04, R05, \
+    L10, L11, L12, L13, L14, L15, R10, R11, R12, R13, R14, R15, \
+    L20, L21, L22, L23, L24, L25, R20, R21, R22, R23, R24, R25, \
+    L30, L31, L32, L33, L34, L35, R30, R31, R32, R33, R34, R35 \
+    ) \
+    KEYMAP( \
+        KC_##L00, KC_##L01, KC_##L02, KC_##L03, KC_##L04, KC_##L05, KC_##R00, KC_##R01, KC_##R02, KC_##R03, KC_##R04, KC_##R05, \
+        KC_##L10, KC_##L11, KC_##L12, KC_##L13, KC_##L14, KC_##L15, KC_##R10, KC_##R11, KC_##R12, KC_##R13, KC_##R14, KC_##R15, \
+        KC_##L20, KC_##L21, KC_##L22, KC_##L23, KC_##L24, KC_##L25, KC_##R20, KC_##R21, KC_##R22, KC_##R23, KC_##R24, KC_##R25, \
+        KC_##L30, KC_##L31, KC_##L32, KC_##L33, KC_##L34, KC_##L35, KC_##R30, KC_##R31, KC_##R32, KC_##R33, KC_##R34, KC_##R35 \
+    )
+
+#define KC_LAYOUT_ortho_4x12 KC_KEYMAP
+
+#endif

keyboards/lets_split_vitamins/matrix.c

@@ -0,0 +1,504 @@
+/*
+Copyright 2012 Jun Wako <wakojun@gmail.com>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/*
+ * scan matrix
+ */
+#include <stdint.h>
+#include <stdbool.h>
+#include <avr/io.h>
+#include <avr/interrupt.h>
+#include <util/delay.h>
+#include "wait.h"
+#include "print.h"
+#include "debug.h"
+#include "util.h"
+#include "matrix.h"
+#include "split_util.h"
+#include "pro_micro.h"
+#include "config.h"
+#include "timer.h"
+
+#ifdef USE_I2C
+#  include "i2c.h"
+#else // USE_SERIAL
+#  include "serial.h"
+#endif
+
+#ifndef DEBOUNCING_DELAY
+#   define DEBOUNCING_DELAY 5
+#endif
+
+#if (DEBOUNCING_DELAY > 0)
+    static uint16_t debouncing_time;
+    static bool debouncing = false;
+#endif
+
+#if (MATRIX_COLS <= 8)
+#    define print_matrix_header()  print("\nr/c 01234567\n")
+#    define print_matrix_row(row)  print_bin_reverse8(matrix_get_row(row))
+#    define matrix_bitpop(i)       bitpop(matrix[i])
+#    define ROW_SHIFTER ((uint8_t)1)
+#else
+#    error "Currently only supports 8 COLS"
+#endif
+static matrix_row_t matrix_debouncing[MATRIX_ROWS];
+
+#define ERROR_DISCONNECT_COUNT 5
+
+#define ROWS_PER_HAND (MATRIX_ROWS/2)
+
+static uint8_t error_count = 0;
+
+static const uint8_t row_pins[MATRIX_ROWS] = MATRIX_ROW_PINS;
+static const uint8_t col_pins[MATRIX_COLS] = MATRIX_COL_PINS;
+
+/* matrix state(1:on, 0:off) */
+static matrix_row_t matrix[MATRIX_ROWS];
+static matrix_row_t matrix_debouncing[MATRIX_ROWS];
+
+#if (DIODE_DIRECTION == COL2ROW)
+    static void init_cols(void);
+    static bool read_cols_on_row(matrix_row_t current_matrix[], uint8_t current_row);
+    static void unselect_rows(void);
+    static void select_row(uint8_t row);
+    static void unselect_row(uint8_t row);
+#elif (DIODE_DIRECTION == ROW2COL)
+    static void init_rows(void);
+    static bool read_rows_on_col(matrix_row_t current_matrix[], uint8_t current_col);
+    static void unselect_cols(void);
+    static void unselect_col(uint8_t col);
+    static void select_col(uint8_t col);
+#endif
+
+
+__attribute__ ((weak))
+void matrix_init_quantum(void) {
+    matrix_init_kb();
+}
+
+__attribute__ ((weak))
+void matrix_scan_quantum(void) {
+    matrix_scan_kb();
+}
+
+__attribute__ ((weak))
+void matrix_init_kb(void) {
+    matrix_init_user();
+}
+
+__attribute__ ((weak))
+void matrix_scan_kb(void) {
+    matrix_scan_user();
+}
+
+__attribute__ ((weak))
+void matrix_init_user(void) {
+}
+
+__attribute__ ((weak))
+void matrix_scan_user(void) {
+}
+
+inline
+uint8_t matrix_rows(void)
+{
+    return MATRIX_ROWS;
+}
+
+inline
+uint8_t matrix_cols(void)
+{
+    return MATRIX_COLS;
+}
+
+bool has_usb(void) {
+  return UDADDR & _BV(ADDEN); // This will return true of a USB connection has been established
+}
+
+void matrix_init(void)
+{
+#ifdef DISABLE_JTAG
+  // JTAG disable for PORT F. write JTD bit twice within four cycles.
+  MCUCR |= (1<<JTD);
+  MCUCR |= (1<<JTD);
+#endif
+
+    // initialize row and col
+#if (DIODE_DIRECTION == COL2ROW)
+    unselect_rows();
+    init_cols();
+#elif (DIODE_DIRECTION == ROW2COL)
+    unselect_cols();
+    init_rows();
+#endif
+
+  TX_RX_LED_INIT;
+
+  // initialize matrix state: all keys off
+  for (uint8_t i=0; i < MATRIX_ROWS; i++) {
+    matrix[i] = 0;
+    matrix_debouncing[i] = 0;
+  }
+
+  _delay_ms(2000); // Give USB 2 seconds to establish a connection
+
+  if (has_usb()) { // Set up as master
+    #ifdef USE_I2C
+      i2c_master_init();
+    #else
+      serial_master_init();
+    #endif
+
+  } else { // Set up as slave
+    timer_init();
+    #ifdef USE_I2C
+      i2c_slave_init(SLAVE_I2C_ADDRESS);
+    #else
+      serial_slave_init();
+    #endif
+  }
+  sei();
+
+  matrix_init_quantum();
+
+  if(!has_usb()){
+    while (1) {
+      matrix_slave_scan();
+    }
+  }
+}
+
+uint8_t _matrix_scan(void)
+{
+    int offset = isLeftHand ? 0 : (ROWS_PER_HAND);
+#if (DIODE_DIRECTION == COL2ROW)
+    // Set row, read cols
+    for (uint8_t current_row = 0; current_row < ROWS_PER_HAND; current_row++) {
+#       if (DEBOUNCING_DELAY > 0)
+            bool matrix_changed = read_cols_on_row(matrix_debouncing+offset, current_row);
+
+            if (matrix_changed) {
+                debouncing = true;
+                debouncing_time = timer_read();
+                PORTD ^= (1 << 2);
+            }
+
+#       else
+            read_cols_on_row(matrix+offset, current_row);
+#       endif
+
+    }
+
+#elif (DIODE_DIRECTION == ROW2COL)
+    // Set col, read rows
+    for (uint8_t current_col = 0; current_col < MATRIX_COLS; current_col++) {
+#       if (DEBOUNCING_DELAY > 0)
+            bool matrix_changed = read_rows_on_col(matrix_debouncing+offset, current_col);
+            if (matrix_changed) {
+                debouncing = true;
+                debouncing_time = timer_read();
+            }
+#       else
+             read_rows_on_col(matrix+offset, current_col);
+#       endif
+
+    }
+#endif
+
+#   if (DEBOUNCING_DELAY > 0)
+        if (debouncing && (timer_elapsed(debouncing_time) > DEBOUNCING_DELAY)) {
+            for (uint8_t i = 0; i < ROWS_PER_HAND; i++) {
+                matrix[i+offset] = matrix_debouncing[i+offset];
+            }
+            debouncing = false;
+        }
+#   endif
+
+    return 1;
+}
+
+#ifdef USE_I2C
+
+// Get rows from other half over i2c
+int i2c_transaction(void) {
+    int slaveOffset = (isLeftHand) ? (ROWS_PER_HAND) : 0;
+
+    int err = i2c_master_start(SLAVE_I2C_ADDRESS + I2C_WRITE);
+    if (err) goto i2c_error;
+
+    // start of matrix stored at 0x00
+    err = i2c_master_write(0x00);
+    if (err) goto i2c_error;
+
+    // Start read
+    err = i2c_master_start(SLAVE_I2C_ADDRESS + I2C_READ);
+    if (err) goto i2c_error;
+
+    if (!err) {
+        int i;
+        for (i = 0; i < ROWS_PER_HAND-1; ++i) {
+            matrix[slaveOffset+i] = i2c_master_read(I2C_ACK);
+        }
+        matrix[slaveOffset+i] = i2c_master_read(I2C_NACK);
+        i2c_master_stop();
+    } else {
+i2c_error: // the cable is disconnceted, or something else went wrong
+        i2c_reset_state();
+        return err;
+    }
+
+    return 0;
+}
+
+#else // USE_SERIAL
+
+int serial_transaction(void) {
+    int slaveOffset = (isLeftHand) ? (ROWS_PER_HAND) : 0;
+
+    if (serial_update_buffers()) {
+        return 1;
+    }
+
+    for (int i = 0; i < ROWS_PER_HAND; ++i) {
+        matrix[slaveOffset+i] = serial_slave_buffer[i];
+    }
+    return 0;
+}
+#endif
+
+uint8_t matrix_scan(void)
+{
+    uint8_t ret = _matrix_scan();
+
+#ifdef USE_I2C
+    if( i2c_transaction() ) {
+#else // USE_SERIAL
+    if( serial_transaction() ) {
+#endif
+        // turn on the indicator led when halves are disconnected
+        TXLED1;
+
+        error_count++;
+
+        if (error_count > ERROR_DISCONNECT_COUNT) {
+            // reset other half if disconnected
+            int slaveOffset = (isLeftHand) ? (ROWS_PER_HAND) : 0;
+            for (int i = 0; i < ROWS_PER_HAND; ++i) {
+                matrix[slaveOffset+i] = 0;
+            }
+        }
+    } else {
+        // turn off the indicator led on no error
+        TXLED0;
+        error_count = 0;
+    }
+    matrix_scan_quantum();
+    return ret;
+}
+
+void matrix_slave_scan(void) {
+    _matrix_scan();
+
+    int offset = (isLeftHand) ? 0 : ROWS_PER_HAND;
+
+#ifdef USE_I2C
+    for (int i = 0; i < ROWS_PER_HAND; ++i) {
+        i2c_slave_buffer[i] = matrix[offset+i];
+    }
+#else // USE_SERIAL
+    for (int i = 0; i < ROWS_PER_HAND; ++i) {
+        serial_slave_buffer[i] = matrix[offset+i];
+    }
+#endif
+}
+
+bool matrix_is_modified(void)
+{
+    if (debouncing) return false;
+    return true;
+}
+
+inline
+bool matrix_is_on(uint8_t row, uint8_t col)
+{
+    return (matrix[row] & ((matrix_row_t)1<<col));
+}
+
+inline
+matrix_row_t matrix_get_row(uint8_t row)
+{
+    return matrix[row];
+}
+
+void matrix_print(void)
+{
+    print("\nr/c 0123456789ABCDEF\n");
+    for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
+        phex(row); print(": ");
+        pbin_reverse16(matrix_get_row(row));
+        print("\n");
+    }
+}
+
+uint8_t matrix_key_count(void)
+{
+    uint8_t count = 0;
+    for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
+        count += bitpop16(matrix[i]);
+    }
+    return count;
+}
+
+#if (DIODE_DIRECTION == COL2ROW)
+
+static void init_cols(void)
+{
+    for(uint8_t x = 0; x < MATRIX_COLS; x++) {
+        uint8_t pin = col_pins[x];
+        _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
+        _SFR_IO8((pin >> 4) + 2) |=  _BV(pin & 0xF); // HI
+    }
+}
+
+static bool read_cols_on_row(matrix_row_t current_matrix[], uint8_t current_row)
+{
+    // Store last value of row prior to reading
+    matrix_row_t last_row_value = current_matrix[current_row];
+
+    // Clear data in matrix row
+    current_matrix[current_row] = 0;
+
+    // Select row and wait for row selecton to stabilize
+    select_row(current_row);
+    wait_us(30);
+
+    // For each col...
+    for(uint8_t col_index = 0; col_index < MATRIX_COLS; col_index++) {
+
+        // Select the col pin to read (active low)
+        uint8_t pin = col_pins[col_index];
+        uint8_t pin_state = (_SFR_IO8(pin >> 4) & _BV(pin & 0xF));
+
+        // Populate the matrix row with the state of the col pin
+        current_matrix[current_row] |=  pin_state ? 0 : (ROW_SHIFTER << col_index);
+    }
+
+    // Unselect row
+    unselect_row(current_row);
+
+    return (last_row_value != current_matrix[current_row]);
+}
+
+static void select_row(uint8_t row)
+{
+    uint8_t pin = row_pins[row];
+    _SFR_IO8((pin >> 4) + 1) |=  _BV(pin & 0xF); // OUT
+    _SFR_IO8((pin >> 4) + 2) &= ~_BV(pin & 0xF); // LOW
+}
+
+static void unselect_row(uint8_t row)
+{
+    uint8_t pin = row_pins[row];
+    _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
+    _SFR_IO8((pin >> 4) + 2) |=  _BV(pin & 0xF); // HI
+}
+
+static void unselect_rows(void)
+{
+    for(uint8_t x = 0; x < ROWS_PER_HAND; x++) {
+        uint8_t pin = row_pins[x];
+        _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
+        _SFR_IO8((pin >> 4) + 2) |=  _BV(pin & 0xF); // HI
+    }
+}
+
+#elif (DIODE_DIRECTION == ROW2COL)
+
+static void init_rows(void)
+{
+    for(uint8_t x = 0; x < ROWS_PER_HAND; x++) {
+        uint8_t pin = row_pins[x];
+        _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
+        _SFR_IO8((pin >> 4) + 2) |=  _BV(pin & 0xF); // HI
+    }
+}
+
+static bool read_rows_on_col(matrix_row_t current_matrix[], uint8_t current_col)
+{
+    bool matrix_changed = false;
+
+    // Select col and wait for col selecton to stabilize
+    select_col(current_col);
+    wait_us(30);
+
+    // For each row...
+    for(uint8_t row_index = 0; row_index < ROWS_PER_HAND; row_index++)
+    {
+
+        // Store last value of row prior to reading
+        matrix_row_t last_row_value = current_matrix[row_index];
+
+        // Check row pin state
+        if ((_SFR_IO8(row_pins[row_index] >> 4) & _BV(row_pins[row_index] & 0xF)) == 0)
+        {
+            // Pin LO, set col bit
+            current_matrix[row_index] |= (ROW_SHIFTER << current_col);
+        }
+        else
+        {
+            // Pin HI, clear col bit
+            current_matrix[row_index] &= ~(ROW_SHIFTER << current_col);
+        }
+
+        // Determine if the matrix changed state
+        if ((last_row_value != current_matrix[row_index]) && !(matrix_changed))
+        {
+            matrix_changed = true;
+        }
+    }
+
+    // Unselect col
+    unselect_col(current_col);
+
+    return matrix_changed;
+}
+
+static void select_col(uint8_t col)
+{
+    uint8_t pin = col_pins[col];
+    _SFR_IO8((pin >> 4) + 1) |=  _BV(pin & 0xF); // OUT
+    _SFR_IO8((pin >> 4) + 2) &= ~_BV(pin & 0xF); // LOW
+}
+
+static void unselect_col(uint8_t col)
+{
+    uint8_t pin = col_pins[col];
+    _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
+    _SFR_IO8((pin >> 4) + 2) |=  _BV(pin & 0xF); // HI
+}
+
+static void unselect_cols(void)
+{
+    for(uint8_t x = 0; x < MATRIX_COLS; x++) {
+        uint8_t pin = col_pins[x];
+        _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
+        _SFR_IO8((pin >> 4) + 2) |=  _BV(pin & 0xF); // HI
+    }
+}
+
+#endif

keyboards/lets_split_vitamins/readme.md

@@ -0,0 +1,187 @@
+Let's Split
+======
+
+This readme and most of the code are from https://github.com/ahtn/tmk_keyboard/
+
+Split keyboard firmware for Arduino Pro Micro or other ATmega32u4
+based boards.
+
+**Hardware files for the Let's Split are now stored at http://qmk.fm/lets_split/**
+**Hardware files for the sockets version can be found at https://github.com/dumle29/let-s-Split-v2/tree/socket-reverseable**
+
+## Build Guide
+
+A build guide for putting together the Let's Split v2 can be found here: [An Overly Verbose Guide to Building a Let's Split Keyboard](https://github.com/nicinabox/lets-split-guide)
+
+There is additional information there about flashing and adding RGB underglow.
+
+A build guide for putting together the sockets version can be found here: *Guide will be made and linked here when the PCBs have been received and tested*
+
+## First Time Setup
+
+Download or clone the `qmk_firmware` repo and navigate to its top level directory. Once your build environment is setup, you'll be able to generate the default .hex using:
+
+```
+$ make lets_split/rev2:default
+```
+
+You will see a lot of output and if everything worked correctly you will see the built hex file:
+
+```
+lets_split_rev2_default.hex
+```
+
+If you would like to use one of the alternative keymaps, or create your own, copy one of the existing [keymaps](keymaps/) and run make like so:
+
+
+```
+$ make lets_split/rev2:YOUR_KEYMAP_NAME
+```
+
+If everything worked correctly you will see a file:
+
+```
+lets_split_rev2_YOUR_KEYMAP_NAME.hex
+```
+
+For more information on customizing keymaps, take a look at the primary documentation for [Customizing Your Keymap](/readme.md##customizing-your-keymap) in the main readme.md.
+
+### Let's split 1.0
+If you have a first generation Let's Split you will need to use the revision 1 code. To do so, use `rev1` in all your commands instead.
+
+Features
+--------
+
+For the full Quantum Mechanical Keyboard feature list, see [the parent readme.md](/readme.md).
+
+Some features supported by the firmware:
+
+* Either half can connect to the computer via USB, or both halves can be used
+  independently.
+* You only need 3 wires to connect the two halves. Two for VCC and GND and one
+  for serial communication.
+* Optional support for I2C connection between the two halves if for some
+  reason you require a faster connection between the two halves. Note this
+  requires an extra wire between halves and pull-up resistors on the data lines.
+
+Required Hardware
+-----------------
+
+Apart from diodes and key switches for the keyboard matrix in each half, you
+will need:
+
+* 2 Arduino Pro Micros. You can find these on AliExpress for ≈3.50USD each.
+* 2 TRRS sockets and 1 TRRS cable, or 2 TRS sockets and 1 TRS cable
+
+Alternatively, you can use any sort of cable and socket that has at least 3
+wires. If you want to use I2C to communicate between halves, you will need a
+cable with at least 4 wires and 2x 4.7kΩ pull-up resistors
+
+Optional Hardware
+-----------------
+
+A speaker can be hooked-up to either side to the `5` (`C6`) pin and `GND`, and turned on via `AUDIO_ENABLE`.
+
+Wiring
+------
+
+The 3 wires of the TRS/TRRS cable need to connect GND, VCC, and digital pin 3 (i.e.
+PD0 on the ATmega32u4) between the two Pro Micros.
+
+Next, wire your key matrix to any of the remaining 17 IO pins of the pro micro
+and modify the `matrix.c` accordingly.
+
+The wiring for serial:
+
+![serial wiring](https://i.imgur.com/C3D1GAQ.png)
+
+The wiring for i2c:
+
+![i2c wiring](https://i.imgur.com/Hbzhc6E.png)
+
+The pull-up resistors may be placed on either half. It is also possible
+to use 4 resistors and have the pull-ups in both halves, but this is
+unnecessary in simple use cases.
+
+You can change your configuration between serial and i2c by modifying your `config.h` file.
+
+Notes on Software Configuration
+-------------------------------
+
+Configuring the firmware is similar to any other QMK project. One thing
+to note is that `MATRIX_ROWS` in `config.h` is the total number of rows between
+the two halves, i.e. if your split keyboard has 4 rows in each half, then use
+`MATRIX_ROWS=8`.
+
+Also, the current implementation assumes a maximum of 8 columns, but it would
+not be very difficult to adapt it to support more if required.
+
+Flashing
+-------
+From the top level `qmk_firmware` directory run `make KEYBOARD:KEYMAP:avrdude` for automatic serial port resolution and flashing.
+Example: `make lets_split/rev2:default:avrdude`
+
+
+Choosing which board to plug the USB cable into (choosing Master)
+--------
+Because the two boards are identical, the firmware has logic to differentiate the left and right board.
+
+It uses two strategies to figure things out: looking at the EEPROM (memory on the chip) or looking if the current board has the usb cable.
+
+The EEPROM approach requires additional setup (flashing the eeprom) but allows you to swap the usb cable to either side.
+
+The USB cable approach is easier to setup and if you just want the usb cable on the left board, you do not need to do anything extra.
+
+### Setting the left hand as master
+If you always plug the usb cable into the left board, nothing extra is needed as this is the default. Comment out `EE_HANDS` and comment out `I2C_MASTER_RIGHT` or `MASTER_RIGHT` if for some reason it was set.
+
+### Setting the right hand as master
+If you always plug the usb cable into the right board, add an extra flag to your `config.h`
+```
+ #define MASTER_RIGHT
+```
+
+### Setting EE_hands to use either hands as master
+If you define `EE_HANDS` in your `config.h`, you will need to set the
+EEPROM for the left and right halves.
+
+The EEPROM is used to store whether the
+half is left handed or right handed. This makes it so that the same firmware
+file will run on both hands instead of having to flash left and right handed
+versions of the firmware to each half. To flash the EEPROM file for the left
+half run:
+```
+avrdude -p atmega32u4 -P $(COM_PORT) -c avr109 -U eeprom:w:eeprom-lefthand.eep
+// or the equivalent in dfu-programmer
+
+```
+and similarly for right half
+```
+avrdude -p atmega32u4 -P $(COM_PORT) -c avr109 -U eeprom:w:eeprom-righhand.eep
+// or the equivalent in dfu-programmer
+```
+
+NOTE: replace `$(COM_PORT)` with the port of your device (e.g. `/dev/ttyACM0`)
+
+After you have flashed the EEPROM, you then need to set `EE_HANDS` in your config.h, rebuild the hex files and reflash.
+
+Note that you need to program both halves, but you have the option of using
+different keymaps for each half. You could program the left half with a QWERTY
+layout and the right half with a Colemak layout using bootmagic's default layout option.
+Then if you connect the left half to a computer by USB the keyboard will use QWERTY and Colemak when the
+right half is connected.
+
+
+Notes on Using Pro Micro 3.3V
+-----------------------------
+
+Do update the `F_CPU` parameter in `rules.mk` to `8000000` which reflects
+the frequency on the 3.3V board.
+
+Also, if the slave board is producing weird characters in certain columns,
+update the following line in `matrix.c` to the following:
+
+```
+// _delay_us(30);  // without this wait read unstable value.
+_delay_us(300);  // without this wait read unstable value.
+```

keyboards/lets_split_vitamins/rev1/config.h

@@ -0,0 +1,91 @@
+/*
+Copyright 2012 Jun Wako <wakojun@gmail.com>
+Copyright 2015 Jack Humbert
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef REV1_CONFIG_H
+#define REV1_CONFIG_H
+
+#include "config_common.h"
+
+/* USB Device descriptor parameter */
+#define VENDOR_ID       0xBEE5
+#define PRODUCT_ID      0xF33D
+#define DEVICE_VER      0x0001
+#define MANUFACTURER    Duckle29
+#define PRODUCT         Lets Split sockets vitamins included
+#define DESCRIPTION     A split keyboard for the cheapish makers
+
+/* key matrix size */
+// Rows are doubled-up
+#define MATRIX_ROWS 8
+#define MATRIX_COLS 6
+
+// wiring of each half
+#define MATRIX_ROW_PINS { F5, F6, C7, F7 }
+#define MATRIX_COL_PINS { F1, F4, E2, B6, D7, D6}
+
+/* define if matrix has ghost */
+//#define MATRIX_HAS_GHOST
+
+/* number of backlight levels */
+// #define BACKLIGHT_LEVELS 3
+
+/* Set 0 if debouncing isn't needed */
+#define DEBOUNCING_DELAY 5
+
+/* Mechanical locking support. Use KC_LCAP, KC_LNUM or KC_LSCR instead in keymap */
+#define LOCKING_SUPPORT_ENABLE
+/* Locking resynchronize hack */
+#define LOCKING_RESYNC_ENABLE
+
+/* key combination for command */
+#define IS_COMMAND() ( \
+    keyboard_report->mods == (MOD_BIT(KC_LSHIFT) | MOD_BIT(KC_RSHIFT)) \
+)
+
+/* ws2812 RGB LED */
+#define RGB_DI_PIN F0
+#define RGBLIGHT_TIMER
+#define RGBLED_NUM 12    // Number of LEDs
+#define ws2812_PORTREG  PORTF
+#define ws2812_DDRREG   DDRF
+
+/* Audio settings */
+#ifdef AUDIO_ENABLE
+    #define C6_AUDIO // Define this to enable the buzzer
+#endif
+
+/*
+ * Feature disable options
+ *  These options are also useful to firmware size reduction.
+ */
+
+/* disable debug print */
+// #define NO_DEBUG
+
+/* disable print */
+// #define NO_PRINT
+
+/* disable action features */
+//#define NO_ACTION_LAYER
+//#define NO_ACTION_TAPPING
+//#define NO_ACTION_ONESHOT
+//#define NO_ACTION_MACRO
+//#define NO_ACTION_FUNCTION
+
+
+#endif

keyboards/lets_split_vitamins/rev1/rev1.c

@@ -0,0 +1,13 @@
+#include "lets_split.h"
+
+
+#ifdef SSD1306OLED
+void led_set_kb(uint8_t usb_led) {
+    // put your keyboard LED indicator (ex: Caps Lock LED) toggling code here
+    led_set_user(usb_led);
+}
+#endif
+
+void matrix_init_kb(void) {
+	matrix_init_user();
+};

keyboards/lets_split_vitamins/rev1/rev1.h

@@ -0,0 +1,40 @@
+#ifndef REV1_H
+#define REV1_H
+#define DISABLE_JTAG // The keyboard uses PF4, PF5 and PF7, which are used by JTAG.
+#define EE_HANDS // This isn't optional for the vitamins included
+
+#include "lets_split.h"
+
+//void promicro_bootloader_jmp(bool program);
+#include "quantum.h"
+
+
+#ifdef USE_I2C
+#include <stddef.h>
+#ifdef __AVR__
+	#include <avr/io.h>
+	#include <avr/interrupt.h>
+#endif
+#endif
+
+//void promicro_bootloader_jmp(bool program);
+
+#define KEYMAP( \
+	L00, L01, L02, L03, L04, L05, R00, R01, R02, R03, R04, R05, \
+	L10, L11, L12, L13, L14, L15, R10, R11, R12, R13, R14, R15, \
+	L20, L21, L22, L23, L24, L25, R20, R21, R22, R23, R24, R25, \
+	L30, L31, L32, L33, L34, L35, R30, R31, R32, R33, R34, R35 \
+	) \
+	{ \
+		{ L00, L01, L02, L03, L04, L05 }, \
+		{ L10, L11, L12, L13, L14, L15 }, \
+		{ L20, L21, L22, L23, L24, L25 }, \
+		{ L30, L31, L32, L33, L34, L35 }, \
+		{ R00, R01, R02, R03, R04, R05 }, \
+		{ R10, R11, R12, R13, R14, R15 }, \
+		{ R20, R21, R22, R23, R24, R25 }, \
+		{ R30, R31, R32, R33, R34, R35 } \
+  }
+
+#define LAYOUT_ortho_4x12 KEYMAP
+#endif

keyboards/lets_split_vitamins/rev1/rules.mk

@@ -0,0 +1,5 @@
+BACKLIGHT_ENABLE = no
+AUDIO_ENABLE = yes
+RGBLIGHT_ENABLE = yes
+DEBUG_ENABLE = no
+CONSOLE_ENABLE = no

keyboards/lets_split_vitamins/rules.mk

@@ -0,0 +1,77 @@
+SRC += matrix.c \
+	   i2c.c \
+	   split_util.c \
+	   serial.c \
+	   ssd1306.c
+
+# MCU name
+#MCU = at90usb1287
+MCU = atmega32u4
+
+# Processor frequency.
+#     This will define a symbol, F_CPU, in all source code files equal to the
+#     processor frequency in Hz. You can then use this symbol in your source code to
+#     calculate timings. Do NOT tack on a 'UL' at the end, this will be done
+#     automatically to create a 32-bit value in your source code.
+#
+#     This will be an integer division of F_USB below, as it is sourced by
+#     F_USB after it has run through any CPU prescalers. Note that this value
+#     does not *change* the processor frequency - it should merely be updated to
+#     reflect the processor speed set externally so that the code can use accurate
+#     software delays.
+F_CPU = 16000000
+
+#
+# LUFA specific
+#
+# Target architecture (see library "Board Types" documentation).
+ARCH = AVR8
+
+# Input clock frequency.
+#     This will define a symbol, F_USB, in all source code files equal to the
+#     input clock frequency (before any prescaling is performed) in Hz. This value may
+#     differ from F_CPU if prescaling is used on the latter, and is required as the
+#     raw input clock is fed directly to the PLL sections of the AVR for high speed
+#     clock generation for the USB and other AVR subsections. Do NOT tack on a 'UL'
+#     at the end, this will be done automatically to create a 32-bit value in your
+#     source code.
+#
+#     If no clock division is performed on the input clock inside the AVR (via the
+#     CPU clock adjust registers or the clock division fuses), this will be equal to F_CPU.
+F_USB = $(F_CPU)
+
+# Bootloader
+#     This definition is optional, and if your keyboard supports multiple bootloaders of
+#     different sizes, comment this out, and the correct address will be loaded 
+#     automatically (+60). See bootloader.mk for all options.
+BOOTLOADER = caterina
+
+# Interrupt driven control endpoint task(+60)
+OPT_DEFS += -DINTERRUPT_CONTROL_ENDPOINT
+
+# Build Options
+#   change to "no" to disable the options, or define them in the Makefile in
+#   the appropriate keymap folder that will get included automatically
+#
+BOOTMAGIC_ENABLE = no       # Virtual DIP switch configuration(+1000)
+MOUSEKEY_ENABLE = yes       # Mouse keys(+4700)
+EXTRAKEY_ENABLE = yes       # Audio control and System control(+450)
+CONSOLE_ENABLE = no         # Console for debug(+400)
+COMMAND_ENABLE = yes        # Commands for debug and configuration
+NKRO_ENABLE = no            # Nkey Rollover - if this doesn't work, see here: https://github.com/tmk/tmk_keyboard/wiki/FAQ#nkro-doesnt-work
+BACKLIGHT_ENABLE = no      # Enable keyboard backlight functionality
+MIDI_ENABLE = no            # MIDI controls
+AUDIO_ENABLE = no           # Audio output on port C6
+UNICODE_ENABLE = no         # Unicode
+BLUETOOTH_ENABLE = no       # Enable Bluetooth with the Adafruit EZ-Key HID
+RGBLIGHT_ENABLE = no       # Enable WS2812 RGB underlight.  Do not enable this with audio at the same time.
+SUBPROJECT_rev1 = yes
+USE_I2C = yes
+# Do not enable SLEEP_LED_ENABLE. it uses the same timer as BACKLIGHT_ENABLE
+SLEEP_LED_ENABLE = no    # Breathing sleep LED during USB suspend
+
+CUSTOM_MATRIX = yes
+
+LAYOUTS = ortho_4x12
+
+DEFAULT_FOLDER = lets_split/rev2

keyboards/lets_split_vitamins/serial.c

@@ -0,0 +1,228 @@
+/*
+ * WARNING: be careful changing this code, it is very timing dependent
+ */
+
+#ifndef F_CPU
+#define F_CPU 16000000
+#endif
+
+#include <avr/io.h>
+#include <avr/interrupt.h>
+#include <util/delay.h>
+#include <stdbool.h>
+#include "serial.h"
+
+#ifndef USE_I2C
+
+// Serial pulse period in microseconds. Its probably a bad idea to lower this
+// value.
+#define SERIAL_DELAY 24
+
+uint8_t volatile serial_slave_buffer[SERIAL_SLAVE_BUFFER_LENGTH] = {0};
+uint8_t volatile serial_master_buffer[SERIAL_MASTER_BUFFER_LENGTH] = {0};
+
+#define SLAVE_DATA_CORRUPT (1<<0)
+volatile uint8_t status = 0;
+
+inline static
+void serial_delay(void) {
+  _delay_us(SERIAL_DELAY);
+}
+
+inline static
+void serial_output(void) {
+  SERIAL_PIN_DDR |= SERIAL_PIN_MASK;
+}
+
+// make the serial pin an input with pull-up resistor
+inline static
+void serial_input(void) {
+  SERIAL_PIN_DDR  &= ~SERIAL_PIN_MASK;
+  SERIAL_PIN_PORT |= SERIAL_PIN_MASK;
+}
+
+inline static
+uint8_t serial_read_pin(void) {
+  return !!(SERIAL_PIN_INPUT & SERIAL_PIN_MASK);
+}
+
+inline static
+void serial_low(void) {
+  SERIAL_PIN_PORT &= ~SERIAL_PIN_MASK;
+}
+
+inline static
+void serial_high(void) {
+  SERIAL_PIN_PORT |= SERIAL_PIN_MASK;
+}
+
+void serial_master_init(void) {
+  serial_output();
+  serial_high();
+}
+
+void serial_slave_init(void) {
+  serial_input();
+
+  // Enable INT0
+  EIMSK |= _BV(INT0);
+  // Trigger on falling edge of INT0
+  EICRA &= ~(_BV(ISC00) | _BV(ISC01));
+}
+
+// Used by the master to synchronize timing with the slave.
+static
+void sync_recv(void) {
+  serial_input();
+  // This shouldn't hang if the slave disconnects because the
+  // serial line will float to high if the slave does disconnect.
+  while (!serial_read_pin());
+  serial_delay();
+}
+
+// Used by the slave to send a synchronization signal to the master.
+static
+void sync_send(void) {
+  serial_output();
+
+  serial_low();
+  serial_delay();
+
+  serial_high();
+}
+
+// Reads a byte from the serial line
+static
+uint8_t serial_read_byte(void) {
+  uint8_t byte = 0;
+  serial_input();
+  for ( uint8_t i = 0; i < 8; ++i) {
+    byte = (byte << 1) | serial_read_pin();
+    serial_delay();
+    _delay_us(1);
+  }
+
+  return byte;
+}
+
+// Sends a byte with MSB ordering
+static
+void serial_write_byte(uint8_t data) {
+  uint8_t b = 8;
+  serial_output();
+  while( b-- ) {
+    if(data & (1 << b)) {
+      serial_high();
+    } else {
+      serial_low();
+    }
+    serial_delay();
+  }
+}
+
+// interrupt handle to be used by the slave device
+ISR(SERIAL_PIN_INTERRUPT) {
+  sync_send();
+
+  uint8_t checksum = 0;
+  for (int i = 0; i < SERIAL_SLAVE_BUFFER_LENGTH; ++i) {
+    serial_write_byte(serial_slave_buffer[i]);
+    sync_send();
+    checksum += serial_slave_buffer[i];
+  }
+  serial_write_byte(checksum);
+  sync_send();
+
+  // wait for the sync to finish sending
+  serial_delay();
+
+  // read the middle of pulses
+  _delay_us(SERIAL_DELAY/2);
+
+  uint8_t checksum_computed = 0;
+  for (int i = 0; i < SERIAL_MASTER_BUFFER_LENGTH; ++i) {
+    serial_master_buffer[i] = serial_read_byte();
+    sync_send();
+    checksum_computed += serial_master_buffer[i];
+  }
+  uint8_t checksum_received = serial_read_byte();
+  sync_send();
+
+  serial_input(); // end transaction
+
+  if ( checksum_computed != checksum_received ) {
+    status |= SLAVE_DATA_CORRUPT;
+  } else {
+    status &= ~SLAVE_DATA_CORRUPT;
+  }
+}
+
+inline
+bool serial_slave_DATA_CORRUPT(void) {
+  return status & SLAVE_DATA_CORRUPT;
+}
+
+// Copies the serial_slave_buffer to the master and sends the
+// serial_master_buffer to the slave.
+//
+// Returns:
+// 0 => no error
+// 1 => slave did not respond
+int serial_update_buffers(void) {
+  // this code is very time dependent, so we need to disable interrupts
+  cli();
+
+  // signal to the slave that we want to start a transaction
+  serial_output();
+  serial_low();
+  _delay_us(1);
+
+  // wait for the slaves response
+  serial_input();
+  serial_high();
+  _delay_us(SERIAL_DELAY);
+
+  // check if the slave is present
+  if (serial_read_pin()) {
+    // slave failed to pull the line low, assume not present
+    sei();
+    return 1;
+  }
+
+  // if the slave is present syncronize with it
+  sync_recv();
+
+  uint8_t checksum_computed = 0;
+  // receive data from the slave
+  for (int i = 0; i < SERIAL_SLAVE_BUFFER_LENGTH; ++i) {
+    serial_slave_buffer[i] = serial_read_byte();
+    sync_recv();
+    checksum_computed += serial_slave_buffer[i];
+  }
+  uint8_t checksum_received = serial_read_byte();
+  sync_recv();
+
+  if (checksum_computed != checksum_received) {
+    sei();
+    return 1;
+  }
+
+  uint8_t checksum = 0;
+  // send data to the slave
+  for (int i = 0; i < SERIAL_MASTER_BUFFER_LENGTH; ++i) {
+    serial_write_byte(serial_master_buffer[i]);
+    sync_recv();
+    checksum += serial_master_buffer[i];
+  }
+  serial_write_byte(checksum);
+  sync_recv();
+
+  // always, release the line when not in use
+  serial_output();
+  serial_high();
+
+  sei();
+  return 0;
+}
+
+#endif

keyboards/lets_split_vitamins/serial.h

@@ -0,0 +1,26 @@
+#ifndef MY_SERIAL_H
+#define MY_SERIAL_H
+
+#include "config.h"
+#include <stdbool.h>
+
+/* TODO:  some defines for interrupt setup */
+#define SERIAL_PIN_DDR DDRD
+#define SERIAL_PIN_PORT PORTD
+#define SERIAL_PIN_INPUT PIND
+#define SERIAL_PIN_MASK _BV(PD0)
+#define SERIAL_PIN_INTERRUPT INT0_vect
+
+#define SERIAL_SLAVE_BUFFER_LENGTH MATRIX_ROWS/2
+#define SERIAL_MASTER_BUFFER_LENGTH 1
+
+// Buffers for master - slave communication
+extern volatile uint8_t serial_slave_buffer[SERIAL_SLAVE_BUFFER_LENGTH];
+extern volatile uint8_t serial_master_buffer[SERIAL_MASTER_BUFFER_LENGTH];
+
+void serial_master_init(void);
+void serial_slave_init(void);
+int serial_update_buffers(void);
+bool serial_slave_data_corrupt(void);
+
+#endif

keyboards/lets_split_vitamins/split_util.c

@@ -0,0 +1,19 @@
+#include <avr/io.h>
+#include <avr/wdt.h>
+#include <avr/power.h>
+#include <avr/interrupt.h>
+#include <util/delay.h>
+#include <avr/eeprom.h>
+#include "split_util.h"
+#include "matrix.h"
+#include "keyboard.h"
+#include "config.h"
+#include "timer.h"
+#include "debug.h"
+
+volatile bool isLeftHand = true;
+
+// this code runs before the usb and keyboard is initialized
+void matrix_setup(void) {
+  isLeftHand = eeprom_read_byte(EECONFIG_HANDEDNESS);
+}

keyboards/lets_split_vitamins/split_util.h

@@ -0,0 +1,17 @@
+#ifndef SPLIT_KEYBOARD_UTIL_H
+#define SPLIT_KEYBOARD_UTIL_H
+
+#include <stdbool.h>
+#include "eeconfig.h"
+
+#define SLAVE_I2C_ADDRESS           0x32
+
+extern volatile bool isLeftHand;
+
+bool has_usb(void);
+
+// slave version of matix scan, defined in matrix.c
+void matrix_slave_scan(void);
+
+
+#endif