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 ...

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 ...

The SMA3 bearingless absolute encoder can be installed in rotary and linear applications and integrates the Multipole Pitch Technology. It is designed for linear measuring lengths up to 19.3 m ...