qmk_firmware/keyboards/mlego/m65/rev4/info.json

{
    "usb": {
        "pid": "0x6062",
        "device_version": "0.0.2"
    },
    "encoder": {
        "rotary": [
            {"pin_a": "A0", "pin_b": "B6"}
        ]
    },
    "indicators": {
        "caps_lock": "C13",
        "num_lock": "B12",
        "scroll_lock": "B13"
    },
    "processor": "STM32F401",
    "bootloader": "tinyuf2",
    "board": "BLACKPILL_STM32_F401"
}