Why a Driver is needed to interface a DC/Stepper Motor with a Microcontroller
Consider an example. A Raspberry-Pi can only give 23ma max current, and the motor will pull 600 ma current. So your Raspberry will go up in smoke. Moreover, during breaking, the back emf from the motor’s inductive coil will fry the R-Pi. So you need a transistor to provide the extra current. And to block […]