Although a “CommsLink” module providing an RS-232 port was available back in the day, it’s become hard to find, inspiring [James] to design a completely new module based on an Arduino Nano.

This project demonstrates how to create a USB MIDI interface using an Arduino Pro Micro. The interface allows MIDI communication between USB and Serial MIDI devices. The schematic for this project can ...

The CREATE USB Interface (CUI) was a project that came out of UC Santa Barbara around the same time the Arduino was being developed. It has a USB port, a PIC18F4550, and a prototyping area. It was … ...