This Code helps you to figure you out whether your L293D arduino shield is working properly. This Code contains Testing for 4 DC Motors and a servo motor. Stepper Motor and Second servo motor code ...

Watch this video on YouTube. “Motor voltage: 24 VDC, 38 VDC (E-type). In my case, I used 12VDC power supply to the motor because this voltage level is compatible with L293D Motor Arduino Shield.