gistfile1.txt

float bend;
float pitch_value;
float divider = 38;
int vcaPin = 10;
int current;

void setup() {
  usbMIDI.setHandleNoteOff(OnNoteOff);
  usbMIDI.setHandleNoteOn(OnNoteOn);
  usbMIDI.setHandleVelocityChange(OnVelocityChange);
  usbMIDI.setHandleControlChange(OnControlChange);
  usbMIDI.setHandleProgramChange(OnProgramChange);
  usbMIDI.setHandleAfterTouch(OnAfterTouch);
  usbMIDI.setHandlePitchChange(OnPitchChange);
  
  analogWriteResolution(12);
  pinMode(vcaPin, OUTPUT);
}

void loop() {
    usbMIDI.read();
}

void OnNoteOn(byte channel, byte note, byte velocity) {
    current = note;
    float pitch_value = constrain(note, 60, 99);
    float velocity_value = constrain(velocity, 0, 255);
    analogWrite(A14, ((pitch_value - 60.0) / divider) * 4095.0);
    analogWrite(vcaPin, velocity_value);
}

void OnNoteOff(byte channel, byte note, byte velocity) {
  if (note != current) { return; }
  float velocity_value = constrain(velocity, 0, 255);
  analogWrite(vcaPin, velocity_value);
}

void OnVelocityChange(byte channel, byte note, byte velocity) {
  float velocity_value = constrain(velocity, 0, 255);
  analogWrite(vcaPin, velocity_value);
}

void OnPitchChange(byte channel, int pitch) {
    bend = map(pitch, 0, 16383, -12.0, 12.0);
    analogWrite(vcaPin, ((pitch_value + bend - 60.0) / divider) * 4095.0);
}

void OnControlChange(byte channel, byte control, byte value) { }

void OnProgramChange(byte channel, byte program) { }

void OnAfterTouch(byte channel, byte pressure) { }