The presented schematic shows how to build a simple PIR motion sensor. PIR sensors allow motion sensing, it is almost always used to detect whether someone has moved in or out of the sensors range.

(Nanowerk Spotlight) For decades, researchers have sought to understand and harness the pyroelectric effect in biological materials. Pyroelectricity refers to the phenomenon where heating or cooling a ...

The “intelligent induction lamp” is a cheap indoor motion sensor nightlight that comes in handy so you do not have to fumble for the light switch in the dark. It is in fact a compact motion sensor ...