Pir Motion Sensor,Infrared Motion Detector with All-Round, Blindspot-Free Coverage for Indoor or Outdoor Use

the following program is brought to you by element 14 the electronics community where you can connect and collaborate with top engineers from around the world join now at element14.com presents hi and welcome back to the learning circuit in this video i'm going to talk about one of the most popular motion sensors that can be found in security systems lights light switches and more the pir sensor [Music] if you've ever walked past a house at night or into a dark room and had the lights turned on automatically they likely used a motion detector called a pir sensor pir stands for passive infrared passive devices or components are those that do not generate energy but can store it or dissipate it infrared is a form of electromagnetic radiation with wavelengths longer than visible light everything emits some low-level radiation the hotter something is the more radiation is emitted pir sensor