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qmk_firmware/keyboards/kprepublic/cstc40/rev3
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ClownFish e19991ec46
[Keyboard] Add CSTC40 rev3 (#25285) 
* refactor cstc40, add rev3 fxtwink variant

* cleanup readmes

* readme nitpick

* add cstc40 aliases

* format-json

* add communty_layouts per code review

* touch copied legacy files for newline

* fix LED flags

* update readme files per code review
2025-07-07 13:14:12 -06:00
..
keyboard.json [Keyboard] Add CSTC40 rev3 (#25285) 2025-07-07 13:14:12 -06:00
readme.md [Keyboard] Add CSTC40 rev3 (#25285) 2025-07-07 13:14:12 -06:00

readme.md

Rev 3

A 40% hotswap ortholinear RGB keyboard from KP Republic.

  • Revision 3: "FXTwink single pcb"
  • Keyboard Maintainer: ClownFish
  • Hardware Supported: CSTC40 rev3
  • STM32F402RCT6 MCU without separate LED driver and using tinyuf2 bootloader. Integrated USB connection.
  • Hardware Availability: kprepublic.com

Make example for this keyboard (after setting up your build environment):

make kprepublic/cstc40/rev3:default

Flashing example for this keyboard:

make kprepublic/cstc40/rev3:default:flash

See the build environment setup and the make instructions for more information. Brand new to QMK? Start with our Complete Newbs Guide.

Bootloader

Enter the bootloader in 3 ways:

  • Bootmagic reset: Hold down the key at (0,0) in the matrix (usually the top left key or Escape) and plug in the keyboard
  • Physical reset button: Briefly press the button on the back of the PCB - some may have pads you must short instead
  • Keycode in layout: Press the key mapped to QK_BOOT if it is available