I can use 4 of my analog pins to output analogWrite(127); to the EN pin of my 4 motor driver chips, and this will reduce the voltage by half?
And it seems to me that inductance is determined by the size or space between the coils? If so, how do I know how low/high my sizes should be? Or is this just something you learn with experience?
Finally, I've been using the Arduino stepper library, do I need to rework my code to allow for the inclusion of PWM? as at the moment I have the steppers declared as stepper1...stepper4
I am using 16 pins connected to 4 LN93NE motorcontrollers.
Your L/R is 0.046/34=1.4ms so as long as your PWM frequency (not duty cycle) is around 1/1.4ms=730 Hz or faster it should be OK, and I seem to remember that's what the Arduino analogWrite() frequency is (or thereabouts).