v1.0.1 Pimoroni Keybow 2040

configured as a keypad with the following layout and working RGB

/*
 * ┌───┬───┬───┬───┐
 * │ 7 │ 8 │ 9 │ / │
 * ├───┼───┼───┤---│
 * │ 4 │ 5 │ 6 │ * │
 * ├───┼───┼───┼───┤
 * │ 1 │ 2 │ 3 │ - │
 * ├───|───┼───┤---│
 * │ 0 | . │ + │ENT│
 * └───┴───┴───┴───┘
 */