Stepper Motor Failure Due to Logic Signal Mismatch

Verify if the driver is receiving valid logic signals. Confirm that the Reset and Sleep pins on the driver are held at a logic HIGH (3.3V) state. Check the pulse frequency in the software; if the step rate is too high for the motor's physical inertia, the motor may stall. Monitor the GPIO pins with an oscilloscope or logic analyzer to ensure the step pulses are reaching the driver input pins with sufficient voltage levels.