We’re all familiar with getting feedback from a rotating shaft, for which we usually employ a potentiometer or encoder ... tenth-of-a-degree differences in rotation. The blog post has a wealth ...

Rotary potentiometers consist of a circular conductive track and an electrical wiper attached to a central shaft. A constant voltage is applied to the track; as the shaft turns and the wiper contacts ...

Basic potentiometers — even those described as "full-turn" — are capable of 270 degrees (or approximately 3/4 of a turn) of rotation. Linear potentiometers are constructed similarly to rotary types, ...

However, in the place of a potentiometer, this design instead uses an AS5600 magnetic rotary position sensor to read the servo’s angle, via a magnet mounted in the servo’s gear. An Arduino is ...