LinuxMusicians

There's also OpenDeck which features both USB MIDI and DIN MIDI:

https://github.com/paradajz/OpenDeck

Disclaimer: I'm the author of it

Support added for I2C LCD/OLED displays:
Since I'm using a wrapper for fatastic U8x2 library, OpenDeck supports anything that library supports, which is a lot!

Actually I might have spoken too fast: https://www.sparkfun.com/products/10982 https://cdn.sparkfun.com//assets/parts/6/2/1/9/Action_Shot-01_clone.jpg The link and the image actually show two different things. Link contains rotary encoder with integrated button and RGB LED. All those components are...

Hi, Igor here, creator of OpenDeck. I'm glad the project is being posted here. Here's another Arduino based project for building custom midi controllers that could be of interest. It's not Arduino based (actually it has nothing to do with Arduino framework), however, selected Arduino boards can be f...