DC motor input port A has three pins,IN1,IN2 and ENA.IN1 and IN2 are digital ports which are used to control the direction of motor,ENA is usually connected to PWM port of control board to control the speed of motor,also it can be connected to digital port. | DC motor input port A has three pins,IN1,IN2 and ENA.IN1 and IN2 are digital ports which are used to control the direction of motor,ENA is usually connected to PWM port of control board to control the speed of motor,also it can be connected to digital port. |