Proximity snsor

IR Proximity sensor circuit || Obstruction detector circuit

Things required:

*Breadboard

*photodiode

*IR led

*LM358 IC

*LED

*10k trimpot

*10k resistor

*100 ohm resistor

*330 ohm resistor

*wires

*9v battery

A proximity sensor is a sensor able to detect the presence of nearby objects without any physical contact.

Circuit diagram :