As a world-wide designer & supplier of Passive Infra-Red (PIR) lenses for lighting & security, we have a range of off the shelf solutions or develop custom designs to suit your needs.Main used is ...
[ladyada] has a freshly-published and amazingly thorough tutorial on passive infrared (PIR) motion sensors. Most often seen in security floodlights and automatic doors, in creative hands these sensors ...
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