#include <BLEMIDI_Transport.h>

//#include <hardware/BLEMIDI_ESP32_NimBLE.h>
#include <hardware/BLEMIDI_ESP32.h>
//#include <hardware/BLEMIDI_nRF52.h>
//#include <hardware/BLEMIDI_ArduinoBLE.h>

BLEMIDI_CREATE_DEFAULT_INSTANCE()

unsigned long t0 = millis();
bool isConnected = false;

// -----------------------------------------------------------------------------
//
// -----------------------------------------------------------------------------
void setup()
{
  MIDI.begin();

  pinMode(LED_BUILTIN, OUTPUT);
  digitalWrite(LED_BUILTIN, LOW);

  BLEMIDI.setHandleConnected([]() {
    isConnected = true;
    digitalWrite(LED_BUILTIN, HIGH);
  });

  BLEMIDI.setHandleDisconnected([]() {
    isConnected = false;
    digitalWrite(LED_BUILTIN, LOW);
  });

  MIDI.setHandleNoteOn([](byte channel, byte note, byte velocity) {
    digitalWrite(LED_BUILTIN, LOW);
  });
  MIDI.setHandleNoteOff([](byte channel, byte note, byte velocity) {
    digitalWrite(LED_BUILTIN, HIGH);
  });
}

// -----------------------------------------------------------------------------
//
// -----------------------------------------------------------------------------
void loop()
{
  MIDI.read();

  if (isConnected && (millis() - t0) > 1000)
  {
    t0 = millis();

    MIDI.sendNoteOn (60, 100, 1); // note 60, velocity 127 on channel 1
  }
}