Musicians have an array of electronic tools at their disposal to help make music these days. Some of these are instruments in and of themselves, and [Wai Lun] — inspired by the likes of Choke and Shawn Wasabi — built himself a midi fighter
Midi fighters are programmable instruments where each button can be either a note, sound byte, effect, or anything else which can be triggered by a button. [Lun]’s is controlled by an ATmega32u4 running Arduino libraries — flashed to be recognized as a Leonardo — and is compatible with a number of music production programs. He opted for anodized aluminum PCBs to eliminate flex when plugging away and give the device a more refined look. Check it out in action after the break!
[Lun] designed the project in Fusion 360 and KiCad with plenty of room to spare for some electronic art — gotta love Daft Punk. He’s using Sanwa OBSC 24mm arcade buttons for their premium quality and two SK6812 mini LEDs apiece for a slick lighting effect when they’re pressed.
After receiving the manufactured boards and parts, a quick test fit flowed right into final assembly. With the ATmega32u4 flashed and programmed, he was ready to rock. Down the line, [Lun] wants to have a GUI to configure the notes each button plays without tinkering around in the code, but it works great for now.
For an astounding acoustic to electronic instrument conversion, check out this MIDI accordion!