Using timers to send pulses to a stepper motor, but only got vibrations on it.

Projects Discussion and Showcase Robotics
3

Hi. I added the line

pinMode(8,OUTPUT);

but had no luck

The output signal is going directly to the step pin in the pololou driver DRV8824.

I am powering the motor with the 12v line from a PC power supply.

I guess the stepper is having trouble with the step frequency, but I don't know...

Thanks again

zeke