This is a personal project to use an Arduino to build a midi controller that works with Guitarix that is running on a RaspberryPi.
*https://github.com/tttapa/MIDI_controller
*https://github.com/neu-rah/ArduinoMenu
*https://github.com/0xPIT/encoder/
*https://github.com/neu-rah/streamFlow
*https://github.com/adafruit/Adafruit_ZeroTimer
*https://github.com/adafruit/Adafruit_NeoPXL8
*https://github.com/adafruit/Adafruit_NeoPixel
*https://github.com/adafruit/Adafruit_ZeroDMA
*https://forum.arduino.cc/index.php?topic=363393.0
*https://medium.com/@atippy83/guitarix-the-pi-dle-board-8d6298ca8e42
*https://arre234.blogspot.com/2018/02/linux-portable-wifi-guitar-amp-on.html
*https://community.blokas.io/t/jack-working-on-headless-rasppi/140/3
*https://github.com/tttapa/MIDI_controller
*https://github.com/tttapa/MIDI_controller/wiki/Library-documentation
*https://github.com/alf45tar/Pedalino
*https://github.com/snappy46/GuitarixMidiController/blob/master/GuitarixMidiController.ino
*https://dev.to/mohammedgqudah/how-to-connect-to-arduino-automatically-using-node-serialport-2e3h
*https://forum.arduino.cc/index.php?topic=396450.0