qmk_firmware/keyboards/5keys/keyboard.json

{
    "manufacturer": "mikiya418",
    "keyboard_name": "5keys",
    "maintainer": "mikiya418",
    "development_board": "promicro",
    "features": {
        "bootmagic": true,
        "extrakey": true,
        "mousekey": true,
        "nkro": false
    },
    "matrix_pins": {
        "direct": [
            ["F4","F5","F6","F7","B1"]
        ]
    },
    "usb": {
        "device_version": "1.0.0",
        "pid": "0x0001",
        "vid": "0x4D4B"
    },
    "layouts": {
        "LAYOUT": {
            "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":[0,4], "x":4, "y":0}
            ]
        }
    }
}