Modern micro-controllers are absolute marvels, but it isn’t too many projects use one and nothing else. For an example of such simplicity, take a look at [oyama]’s Pi Pico MIDI looper.

Lilbits: A cyberdeck with a 2 inch CRT display, a 25.3 inch E Ink monitor, and the final nail in the coffin for LG's ...

A quadrature encoder provides a way to let hardware read movement (and direction) of a shaft, and they can be simple, ...