How can one drive a stepper motor and control its speed using PWM from a microcontroller, since the stepper motor has more than two wires?
I just want a confirmation because I'm still confused.
pwmstepper motor
How can one drive a stepper motor and control its speed using PWM from a microcontroller, since the stepper motor has more than two wires?
I just want a confirmation because I'm still confused.
Best Answer
If you use bbipolar stepper motor, it has two phases, so you drive it with two PWM signals at least. In more advanced aapplications- two PWM per phase, so four. I wonder, if you know, where to connect this signals... I think, you should start with DRV8811, then you need one GPIO for direction and another one for step. No PWM rrequired.