The next two 2 pins, Step and Direction are the pins that we actually use for controlling the motor movements. For powering the motor we use the next 2 pins, Ground and VMOT that we need to connect them to Power Supply from 8 to 35 V and also we need to use decoupling capacitor with at least 47 ♟ for protecting the driver board from voltage spikes. The 1A and 1B pins will be connected to one coil of the motor and the 2A and 2B pins to the other coil of the motor. The following 4 pins are for connecting the motor.
So we will start with the 2 pins on the button right side for powering the driver, the VDD and Ground pins that we need to connect them to a power supply of 3 to 5.5 V and in our case that will be our controller, the Arduino Board which will provide 5 V. Now let’s close look at the pinout of the driver and hook it up with the stepper motor and the controller.
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