EEVblog #275 - PIR Sensor Teardown & Tutorial

Teardown Tuesday What’s inside a NESS Quantum Passive Infrared (PIR) pyroelectric motion sensor. How do they work? And what’s all this Fresnel lens stuff anyhow? Теги: Pyroelectric,pir,passive,infrared,ir,alarm,motion,sensor,reed,relay,movement,detection,tutorial,schematic,how,it,works,fresnel,lens,design,reverse,engineer,pcb