Ir transmitter and reciever

This document discusses the design of an infrared transmitter and receiver circuit to understand their working. It describes the key components used, including an IR LED transmitter that emits infrared photons, an IR photodiode receiver that enters a breakdown region when infrared photons are detected, and a circuit connecting the two with batteries and resistors. The circuit aims to demonstrate the working principles of how infrared signals are transmitted and received, with potential applications in automatic lighting, counting, security, and theft alarms.Read less