V2 Motor Shield

[shilohr]

I have a Nema 17 size stepper motor with 5.75 ohm per phase, and I am using a V2 motor shield with an arduino, and the motor and shield are both getting very hot. I am using a 12 volt supply, which I'm guessing is causing the current to be too high. Could I run the motors with 5 volts instead? And would this affect anything?

[Franklin97355]

You could but the torque would be significantly lower and may not be enough to turn the motor at all.

[adafruit_support_bill]

Most likely, the motor will run. And the holding torque will be the same as if you used a current limiting driver with a 1A limit.

But the pull-in and pull-out torque will be lower, so it will not be able to deliver much torque to a load at speed. You will get better performance from a DRV8833 or a pair of DRV8871's.
https://www.adafruit.com/product/3297
https://learn.adafruit.com/current-limi ... th-drv8871