When I comment out the delay, i.e.:
digitalWrite(PUL,HIGH); delayMicroseconds(374); digitalWrite(PUL,LOW); //delayMicroseconds(374);// Is the needed?, works fine without
The motor works just fine without it. (speeds up of course, but if I double the Write delay it goes back to its orginal speed as expected).
Is it really needed?
Thanks for your help.
Driver: DFRobot TB6600, https://www.dfrobot.com/product-1547.html Motor: https://www.omc-stepperonline.com/download/17HS15-1684S-HG100.pdf 4 wire bipolar