Send-MIDI-Notes.ino

Send-MIDI-Notes

Example showing how to send MIDI Note messages.

Boards:

AVR, AVR USB, Nano Every, Due, Nano 33 IoT, Nano 33 BLE, Pi Pico, Teensy 3.x, ESP32, ESP8266

See also

MIDI Tutorial: Sending MIDI messages

Send-All-MIDI-Messages.ino

 
#include <Control_Surface.h>
 
// Instantiate the MIDI over USB interface
USBMIDI_Interface midi;
 
// Push button connected between pin 2 and ground.
// Note message is sent when pressed.
Button pushbutton {2};
 
// MIDI address of the note to send
const MIDIAddress noteAddress {MIDI_Notes::C(4), CHANNEL_1};
// The velocity of the note events
const uint8_t velocity = 0x7F;
 
void setup() {
  pushbutton.begin(); // enables internal pull-up
  midi.begin();       // initialize the MIDI interface
}
 
void loop() {
  midi.update(); // read and handle or discard MIDI input
 
  pushbutton.update();                              // read the button state
  if (pushbutton.getState() == Button::Falling)     // if the button is pressed
    midi.sendNoteOn(noteAddress, velocity);         // send a note on event
  else if (pushbutton.getState() == Button::Rising) // if the button is released
    midi.sendNoteOff(noteAddress, velocity);        // send a note off event
}