How Does An IR Sensor Work!
Arduino UNO is a microcontroller board- it is the brain of any electronics project. IR sensor, on the other hand, is an infrared rays transmitter and receiver. In the following project, we will learn the working principle of IR sensor followed by its application as a discriminator between black and white surfaces and as an obstacle detector with Arduino UNO. IR Sensor FC-51 IR Sensor emits and detected infrared radiations. IR radiations are part of the electromagnetic spectrum, with wavelength higher than that of visible light, and are generally invisible to the human eye. The IR sensor consists of: 1. IR Emitter LED: Emits infrared light 2. IR Receiver: A photodiode with resistance depending on the amount of IR light falling on it 3. Distance Adjuster: Changes detection distance 4. Vcc Pin: Provides 3–5 V input voltage 5. ...