Chapter 5. IR Remote Control Tester

Infrared (IR) is a wireless signal used in a variety of industrial, medical, and consumer electronics products. It is a part of the electromagnetic spectrum with its radiation and wavelength band between 770 nm and 1 mm. The wavelength of IR is longer compared to the visible light, which is in the range of 400-700 nm. In the industrial sector, it is known to be a heat radiation source and used in non-contact applications, such as object detection or level sensing. Also the energy radiated by infrared is not seen by the human eye, but it can be detected using special sensors. It's these visibility characteristics that make infrared useful in products such as thermal imaging cameras and object detection sensors known as PIRs (Passive Infrared).

In addition to object detection, IR is used in wireless control applications. The most common IR wireless control device used to operate electronic toys and consumer products is the handheld remote...