#include <MIDI.h>

// Override the default MIDI baudrate to
// a decoding program such as Hairless MIDI (set baudrate to 115200)

struct CustomBaudRate : public MIDI_NAMESPACE::DefaultSettings {
  static const long BaudRate = 115200;
};

MIDI_CREATE_CUSTOM_INSTANCE(HardwareSerial, Serial, MIDI, CustomBaudRate);

void setup() {
  pinMode(LED_BUILTIN, OUTPUT);
  MIDI.begin(MIDI_CHANNEL_OMNI);
}

void loop() {
  if (MIDI.read())                    // If we have received a message
  {
    digitalWrite(LED_BUILTIN, HIGH);
    MIDI.sendNoteOn(42, 127, 1);    // Send a Note (pitch 42, velo 127 on channel 1)
    delay(1000);                // Wait for a second
    MIDI.sendNoteOff(42, 0, 1);     // Stop the note
    digitalWrite(LED_BUILTIN, LOW);
  }
}