Eurorack audio synthesis platform

Again, based on an ESP32

There is a new module coming up by us:

In the works: TBD, lightweight ESP32-based module... with audio IO

There is a new branch in the Github hardware repo "rev-d" where we removed most test pins, updated some footprints and included another front panel design.

We are in the process of testing rev-d, it SHOULD work fine already. Will post updates here once confirmed.

https://github.com/ctag-fh-kiel/esp32-eurorack-audio/tree/rev-d