MIDI.sendControlChange() to toggle a button in Ableton

Using Arduino Audio
4

hmm... that doesn't seem to have worked.

it's just working as a momentary again

This is what I've uploaded: -

#include <MIDI.h>
#include <midi_Defs.h>
#include <midi_Message.h>
#include <midi_Namespace.h>
#include <midi_Settings.h>
MIDI_CREATE_DEFAULT_INSTANCE();

const int buttonPin = 2;
int buttonState = 0;
int lastButtonState = 0;
int toggleState = 0;

void setup() {
  MIDI.begin(1);
  pinMode(buttonPin, INPUT_PULLUP);
}

void loop() {
  buttonState = digitalRead(buttonPin);

  if(buttonState != lastButtonState && buttonState == 1 && toggleState == 0) {
    MIDI.sendControlChange(1, 127, 1);
  toggleState = 1;
  }
  if(buttonState != lastButtonState && buttonState == 0 && toggleState == 1) {
    MIDI.sendControlChange(1, 0, 1);
  toggleState = 0;
  }
  lastButtonState = buttonState;
}