openpipe with fluxamasynth

Using Arduino Programming Questions
14

These functions will work:-

void noteOn(byte channel, byte note, byte attack_velocity) {
  talkMIDI( (0x90 | channel), note, attack_velocity);
}

//Send a MIDI note-off message. Like releasing a piano key
void noteOff(byte channel, byte note, byte release_velocity) {
  talkMIDI( (0x80 | channel), note, release_velocity);
}

void soundsOff(byte channel){
  talkMIDI( (MIDI_COMMAND_SOUNDS_OFF | channel), 120, 0);
}

These functions will not work:-

int MIDI_sounds_off(void){
   t_midiMsg midiMsg;
   midiMsg.msg.command = MIDI_COMMAND_SOUNDS_OFF;
   midiMsg.msg.channel = MIDI_DEFAULT_CHANNEL;
   midiMsg.msg.data2 = 120;
   midiMsg.msg.data3 = 0;	/* Velocity */
   
   Serial.write(midiMsg.raw, sizeof(midiMsg));
}

int note_on(int note, int vel){
    t_midiMsg midiMsg;
    
    midiMsg.msg.command = MIDI_COMMAND_NOTE_ON;
    midiMsg.msg.channel = MIDI_DEFAULT_CHANNEL;
    midiMsg.msg.data2 = note;
    midiMsg.msg.data3 = vel;	/* Velocity */
    
    Serial.write(midiMsg.raw, sizeof(midiMsg));
}

int note_off(int note, int vel){
    t_midiMsg midiMsg;
    
    midiMsg.msg.command = MIDI_COMMAND_NOTE_OFF;
    midiMsg.msg.channel = MIDI_DEFAULT_CHANNEL;
    midiMsg.msg.data2 = note;
    midiMsg.msg.data3 = vel;	/* Velocity */
    
    Serial.write(midiMsg.raw, sizeof(midiMsg));
}

Replace calls to the latter with the former with the appropriate calling parameters.