If there is any problem, the troubleshooting will be easier than it would be after wiring the direction controller. Power up your circuit and check whether it is working properly. Connect the DIR pin of the motor driver to either GND or +5 volts while testing. Set up and wire only the speed controller. Step 4: Wire Up and Test the Speed Controller Please move to the next step before starting making the circuit. ![]() Please note:- For the IC(1), pin6 needs to be connected to pin 2 of the chip. Step 3: Get Help From the Circuit Schematic Don't forget to connect the SLP and RST pins together! I used a small jumper for that. Step 2: Start by Plugging on the A4988 Motor Driver on the BreadboardĪfter plugging on the motor driver, connect the VDD(or VCC) pin to +5vols, GND, to obviously GND, and, VMOT to 12 volts. Make sure the capacitors are rated for voltages above 10 volts.) Capacitors above this range will cause the stepper motor to move very slowly and ones below the range will not allow the motor to move at all. ![]()
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