Hello. When I test my nema 17 motor control with a drv8825, it works perfectly. I swapped it out with an identical drv8825 and it doesn’t work correctly, the motor just shutters and moves erratically. What’s the cause and how do I fix this?(eventually need to control 2 steppers so thats why I’m testing it)
Can you post some pictures of your setup, including pictures that show the top and bottom side of both drivers? Can you also post information about your power supply and stepper motor and tell me how you are setting the current limit?