This module, in particular, features two A4988 stepper motor drivers, a connector for a power supply or battery providing 7-20V, and a buck converter to bring that power down to the 5V needed by ...

If you’re someone like [eNBeWe], you grab a stepper motor with driver module you had lying around gathering dust, an ESP8266 for the brains and a few other pieces to build your very own auto ...