qmk_firmware/keyboards/mechlovin/mechlovin9/rev3/keyboard.json

{
    "keyboard_name": "Mechlovin9 Rev3",
    "processor": "STM32F103",
    "bootloader": "stm32duino",
    "usb": {
        "pid": "0x6509",
        "device_version": "0.0.3"
    },
    "features": {
        "bootmagic": true,
        "mousekey": true,
        "extrakey": true
    },
    "bootmagic": {
        "matrix": [0, 13]
    },
    "matrix_pins": {
        "rows": ["B12", "B13", "B14", "B15", "A1"],
        "cols": ["B11", "B10", "B2", "B1", "B0", "A6", "A5", "A4", "A3", "C13", "B7", "B6", "B5", "B4", "B3"]
    },
    "diode_direction": "COL2ROW",
    "indicators": {
        "caps_lock": "B9"
    }
}