An Electro Mechanical H Bridge.
A young up and coming engineer follower of mine asked me if I could create a relay based (electro mechanical) H-Bridge circuit, so here it is.
I used a Nano 33 IoT to demonstrate and control the circuit, an optically isolated dual spst relay module for the two required relays (optical isolation is included on the board to protect the nano) and an N20 45RPM 6vdc gear motor for the motor.
Have fun!