Motor Driver Circuits

A microcontroller isn’t very useful without some kind of hardware attached. Most useful hardware requires significantly more power to operate than can be supplied directly from a logic. In essence, the microcontroller can signal information using digital or analog outputs, but not deliver much energy. An essential skill is using a driver circuit to control power delivery using that information. Or put another way, amplify the small-energy informational signal to the point where the energy is useful enough to solve an actuation problem.