MIDI-Monitor.ino

MIDI-Monitor

This example prints all MIDI messages that arrive over USB to the Serial monitor so you can use the Arduino as a MIDI monitor. It also allows you to enter MIDI messages as text in the Serial monitor, and then sends these messages as MIDI over USB.

Boards: 🛈

AVR USB, Due, Nano 33 IoT, Nano 33 BLE, UNO R4, Pi Pico, Teensy 3.x

This example requires an Arduino board with native MIDI over USB support.

To send a MIDI message from the Serial monitor, select “Newline” as the line ending, enter the MIDI message in hexadecimal, and press enter.
For example, if you enter 90 3C 7F, a MIDI Note On message for middle C (0x3C) with a velocity of 127 (0x7F) will be sent over USB.
Spaces between bytes are not required (903C7F will be interpreted as 90 3C 7F), but they are recommended to prevent framing errors.

See also

MIDI_Pipes-Routing.ino

Debug-MIDI-Interface.ino

MIDI Tutorial: Routing MIDI messages

Written by PieterP, 2021-06-28
https://github.com/tttapa/Control-Surface

 
#include <Control_Surface.h> // Include the Control Surface library
 
// Instantiate the two MIDI interfaces
USBMIDI_Interface midiusb;
USBDebugMIDI_Interface mididbg;
 
// Instantiate a MIDI pipe to connect the two interfaces
BidirectionalMIDI_Pipe mpipe;
 
void setup() {
  // Create a bidirectional route between the interfaces:
  // all input to one interface is sent to the output of the other
  midiusb | mpipe | mididbg;
  // Initialize all MIDI interfaces
  MIDI_Interface::beginAll();
}
 
void loop() {
  // Continuously handle MIDI input
  MIDI_Interface::updateAll();
}