qmk-firmware/keyboards/takashiski/namecard2x4/rev2/info.json

{
    "ws2812": {
        "pin": "D4"
    },
    "matrix_pins": {
        "cols": ["D7", "E6", "B4", "B5"],
        "rows": ["B2", "B6"]
    },
    "diode_direction": "ROW2COL"
}