How does a stepper motor turn into an encoder? Well, that’s the MacGyver part. We are not big fans of the physical circuit diagrams ... We love using things for unintended purposes.

Typically, the motors are driven and controlled by inexpensive and dedicated stepper motor driver ICs. Unfortunately, most of these ICs use a simple current control method that causes ... stepper ...

[Andriyf1] has a slightly different trick. He shows how to use a stepper motor as an encoder. You can see a video of the setup below. It makes sense. If the coils in the stepper can move the shaft ...