Dexy - DX7-Inspired FM

Digital FM voice with a Raspberry Pi Pico

Dexy is a 10HP Eurorack module that does FM synthesis using a Raspberry Pi Pico. It is not a Yamaha DX7 clone, but it uses similar operators and algorithms to create a single FM voice.

It has pitch and timbre modulation, onboard patch storage, and a USB connection that talks to custom patch editing software.

Dexy is part of my homebrew Eurorack synthesizer. Hardware and software are open source. GitHub repository is here.






There are some patchbank files here. A patchbank can be downloaded to the Dexy module using the DexyPatch software.


The Dexy module is open source hardware. The hardware design is published under the Creative Commons Attribution license. Firmware and software are published under the MIT license.