cs-midi-docs/docs/examples/01-output/08-note-button-matrix.md

NoteButtonMatrix

Grid of note buttons using row/column scanning.

Original: NoteButtonMatrix.ino

#include "pico/stdlib.h"
#include "pico/cyw43_arch.h"
#include <cs_midi.h>

using namespace cs;

BluetoothMIDI_Interface midi;

NoteButtonMatrix<2, 3> matrix {
    {0, 1},    // row pins
    {2, 3, 4}, // column pins
    {{
        {MIDI_Notes::C[4], MIDI_Notes::D[4], MIDI_Notes::E[4]},
        {MIDI_Notes::F[4], MIDI_Notes::G[4], MIDI_Notes::A[4]},
    }},
    Channel_1,
};

int main() {
    stdio_init_all();
    if (cyw43_arch_init()) return 1;
    Control_Surface.begin();
    while (true) {
        Control_Surface.loop();
        sleep_ms(1);
    }
}