Mechaduino is a board that sits on a regular stepper motor and turns it into a servo with a closed loop control of 0.1degree ... they’ve promised. he Arduino-sounding bit of the name comes ...

[Andreas] has created this tutorial ... an Arduino here on Hackaday. The rationale behind this is not often explained. [Andreas] connects a common low-cost 28BYJ-48 geared stepper motor with ...