Hello, i have a NEMA 17 Stepper Motor with 12V 0.4A, a A4988 Driver and an Arduino Nano. For the motor I use a 12V 2A power supply. All cables are connected correctly but the motor does not turn. Sometimes it makes some steps but then it jumps back and sometimes the motor does nothing. The poti…

Stepper motor does not turn

Robin2 May 5, 2018, 7:26am 6

Maybe your DRV8825 is damaged?

Never disconnect the wires between the motor and the stepper driver while the driver is powered up. The driver will be instantly destroyed,

...R

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