I just built up my board and connected the stepper motor. I am using this circuit to test the board out:
I am wondering if I have chosen the wrong 555 resistor values. When connected, the motor gets the HF whine (dogs go crazy) and it seems as if its moving very, very, slowly. As in, you barely notice it. Or, is this circuit totally wrong? When I use actual switches to enable and step the motor moves one step.
It's a bit late for me so I need some help!