Infrared communication transmitted data through infrared spread in the air and infrared as a carrier for communication. It is composed of infrared transmitter and infrared receiver. In
transmitter, digital signals sent into the light converting circuit after appropriate modulation codes, digital signals convert into infrared pulse firing into the air through the infrared
transmitting tube. At the receiving end, infrared receiver received infrared pulse converter, to restore the original signal after demodulation decoding.