Switch to send midi CC

Other Hardware Audio
6

Hello
I got tired of lecturing about debouncing buttons and finite state machines tonight, so I added the changes to your sketch. The sketch is untested and may need to be adapted to your MIDI environment.

#include <MIDI.h>
MIDI_CREATE_DEFAULT_INSTANCE();
void setup()
{
  Serial.begin(31250);
  MIDI.begin (MIDI_CHANNEL_OMNI);  // Launch MIDI and listen to channel omni
  pinMode(2, INPUT_PULLUP);
}
void loop() {
  static bool state = 0;
  static int stage = 0;
  static unsigned long buttonMillis;
  const  unsigned long buttondelay = 50;
  if  (millis() - buttonMillis >= buttondelay) {
    buttonMillis = millis();
    bool pinState = !digitalRead(2);
    if (state != pinState) {
      state = pinState;
      if (state) {
        switch (stage) {
          case 0:
            MIDI.sendControlChange(12, 0, 1);
            break;
          case 1:
            MIDI.sendControlChange(12, 127, 1);
            break;
        }
        stage++;
        stage = stage % 2;
      }
    }
  }
}
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