He’s converted a mouse into a tuning dial. The scroll wheel on a mouse is nothing more than a rotary encoder, and can easily be used as a sort of tuning knob. Replacing it with a better encoder ...

I needed a rotary encoder — I pulled a cheap one out of one of those “49 boards for Arduino” kits you see around. Not the finest encoder in the land, I’m sure, but it should do the job.

The scroll wheel will need to work via a rotary encoder and not an IR transmitter/detector; see the source post or the video tutorial for more details and how to spot the difference. Once you have ...

Posital has enhanced its IXARC family of incremental magnetic rotary encoders, increasing the maximum resolution to 32,768 ...