Arduino H Bridge Diagram. The h bridge is probably the scariest part in this tutorial they have a whole bunch of unlabelled pins and generally look complicated so lets get that out of the way next. In the center of the circuit is a dc motor.
L298n motor driver module. An h bridge full bridge driver is quite popular in driving loads such as brushed dc motors and it is widely used in robotics and industry. And to supply the voltagecurrent required to operate the motor an external supply is connected to the motor driver module.
You can visualize an h bridge as an arrangement of four switches.
With this motor driver you can control dc motors stepper motors relays and solenoids. Vcc1 is connected to arduino 5v pin. In1 to arduino pin 8 in2 to arduino pin 9 in3 to arduino pin 10 in4 to arduino pin 11. A 5k or 10k potentiometer is used to control the speed.