Wiring MOC78XX, H206, GP1A57HRJ00F Opto-interrupter for Motor Speed, Direction, Detection Control

This is the photo interrupter also known as photogate, photodiode, or phototransistor. Phototransistors are specially designed transistors with the base region exposed these transistors are light sensitive, especially when an infrared source of light is being used. Phototransistors it has