Adafruit Industries‘ Noe Ruiz let us know about their latest project, the Mini OONTZ.
Mini OONTZ is a DIY, open source, native USB MIDI controller, based on the Arduino Leonardo. It’s a grid controller, in the style of the monome, designed to be easy to customize and hack.
Here the intro video for the project:
The project includes all the steps for creating your own controller. They also have sketches for making drum machines, step sequencers, and a Monome style arpeggiator.
Details are available at the Adafruit site.
If you like the idea of a DIY, open source native USB MIDI controller, but you want one with more buttons, they’ve also got plans for the 8×8 OONTZ and even a 128 button HELLA OONTZ, below: