I'm working on getting a nema 17 stepper to work and am kinda lost.
I already fried one controller (it caught on fire and everything)
I bought two just in case I did something bone-headed, so now I'm really cautious because I don't want to blow up my backup.
I quite carefully followed the tutorial that decrdude posted (thanks) with the step / dir and enable pins all tied to ground. Plugged it in and was able to set the current to 1 amp ( motor rated at 1.5)
After that, I loaded the test sketch on my arduino and ran it. It ran, but was pretty clacky , so I unplugged the motor voltage, and started jumping the MS1/2/3 high per the chart to decrease the stepping mode, looking for a smoother operating mode.
I disconnected the motor voltage, but not the logic as I was doing this. And now when I plug the thing in, I get nothing. I have confirmed that I have voltage where it is needed. I moved all the control pins back to ground to confirm that it is not software-related, and still.. When I plug in the motor voltage the coils do not energize.
Is there a order of plugging in that I have missed, or do I need to reset it somehow... Advice is appreciated. Thanks