Stepper Motor Spinning Slow

Hi @Gordon,

I don't know why, but when I remove the while(i!=3)i++; line stepper stops working. Change interval to 2-3-4 doesn't help. I have tried to change interval from 1 to 100 but no effect.

Also change polarity didn't do any effect; Leds and motion is the same

digitalWrite(stepperPins[0],!(stepval&1)­);
digitalWrite(stepperPins[1],!(stepval&2)­);
digitalWrite(stepperPins[2],!(stepval&4)­);
digitalWrite(stepperPins[3],!(stepval&8)­);