[Steve Hobley] built a Theremin interface board that tracks pitch and volume. Using this setup he’s able to pass data over a midi interface which effectively converts the instrument into a non ...

And SL mk2 is no simple keyboard controller. There’s a full audio interface on board with a pair of audio outs and a headphone jack, plus USB-C, pedal jacks and a full set of MIDI ports. With MIDI 2.0 ...

We see a huge variety of human-computer interface devices here at Hackaday, and among them are some exceptionally elegant designs. Of those that use key switches though, the vast majority employ ...