control the motor rotation and listen on the ‘stepper motor driver’ interface pins hooked up to the motion controller upstream. The Arduino source for this can be found on the project GitHub.

But [Playful Technology] wanted to control the hands with an Arduino ... the drive mechanism with something like an RC servo or other motor and it sounds like he has done this and plans to show ...

A hobbyist has shared his recent project on building a micro robot arm with balanced counterweights, designed for compact yet ...

A YouTuber has shared his latest project, Legion Mark I, a robot that can both crawl like an insect and drive like a car.