qmk-firmware/keyboards/handwired/prkl30/promicro/info.json

{
    "matrix_pins": {
        "cols": ["B4", "B5", "F6", "F5", "F4", "F7", "B1", "B3", "B2", "B6"],
        "rows": ["D4", "C6", "D7", "E6"]
    },
    "diode_direction": "COL2ROW",
    "encoder": {
        "rotary": [
            {"pin_a": "D3", "pin_b": "D2"}
        ]
    }
}