If you locate the pot output pin on the control board and run a wire from there into an Arduino, you can use that information to calibrate and control the servo’s position pretty easily.

Serial Servo HATs and Raspberry Pi, Arduino expansion boards 3:15 pm October 2, 2023 By Julian Horsey While building robotics projects, the importance of controllers and motors cannot be overstated.

The shoulder joint is turned into a servo motor by adding a potentiometer and a smartly designed 3D-printed cover, which allows easy centering and replacement.

An Arduino is used to determine the servo’s current position versus the desired position, and it turns the motor accordingly with a BTS7960 motor driver.

Beatoven, by interaction artist Viktor Jan, is basically a MIDI-connected pot. When electrified objects go in, they send current through the pot to an onboard Arduino.