Hairless MIDI to Serial Bridge is a popular choice for this purpose. This software translates the serial data from the Arduino into MIDI messages that your DAW can understand.

YouTuber Alex Coover, aka Glacial Geyser, has build an awesome Arduino-powered MIDI controller to help with his budding music career. Here's a demo.

[Dimitri Diakopoulos] dropped into our tip line to let us know his HIDUINO project. The HIDUINO is a set of firmware for the ATmega8u2 used in the new revisions of the Arduino (Uno, and Mega2560 f… ...

Jon Bumstead has created an awesome Arduino powered 13 note midi harp after receiving funding from the optics group Spectra at Washington University in Saint Louis. Watch the video below to learn ...

MIDI MIDI is also a serial protocol, though a lot slower. It clocks along at 31250 baud. Command bytes have the high bit set, one of 8 command codes, and one of 16 channels.

Your DAW If you’re familiar with any DAW (Digital Audio Workstation), you’ll have become accustomed to its unique interface, including its MIDI functions. Technically, a DAW on your computer can be ...