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Why do the DC motor with the same PWM block in Arduino giving an output of different direction of motor rotation

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I have set both dc motor the same value of pwm, but i kept getting the output different in terms of rotation of the motor. how can i get both dc motor moves forward with the same value of pwm?
Mathieu NOE
Mathieu NOE on 11 Apr 2023
have you tested the motors for example with a simple lab power supply before connecting it to your board ?
maybe the motor supplier has made a mistake on the polarity

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