qmk_firmware/keyboards/kb_elmo/twelvekey/info.json

{
    "keyboard_name": "Twelvekey", 
    "manufacturer": "kb-elmo",
    "url": "https://github.com/kb-elmo/twelvekey", 
    "maintainer": "kb-elmo", 
    "usb": {
        "vid": "0xA68C",
        "pid": "0x9879",
        "device_version": "0.0.1"
    },
    "matrix_pins": {
        "cols": ["C5", "D0", "B0", "D6"],
        "rows": ["D1", "C4", "D7"]
    },
    "diode_direction": "COL2ROW",
    "backlight": {
        "pin": "B1",
        "levels": 8,
        "on_state": 0
    },
    "processor": "atmega328p",
    "bootloader": "usbasploader",
    "layouts": {
        "LAYOUT_ortho_3x4": {
            "layout": [
                {"matrix": [0, 0], "x": 0, "y": 0},
                {"matrix": [0, 1], "x": 1, "y": 0},
                {"matrix": [0, 2], "x": 2, "y": 0},
                {"matrix": [0, 3], "x": 3, "y": 0},

                {"matrix": [1, 0], "x": 0, "y": 1},
                {"matrix": [1, 1], "x": 1, "y": 1},
                {"matrix": [1, 2], "x": 2, "y": 1},
                {"matrix": [1, 3], "x": 3, "y": 1},

                {"matrix": [2, 0], "x": 0, "y": 2},
                {"matrix": [2, 1], "x": 1, "y": 2},
                {"matrix": [2, 2], "x": 2, "y": 2},
                {"matrix": [2, 3], "x": 3, "y": 2}
            ]
        }
    }
}