When a person walks past the sensor, it detects a rapid change of infrared energy and sends a signal. PIR sensors are used for applications such as automatically turning on lights when someone ...

They’re readily available and easy to play with, they work with open source hubs ... a passive infrared sensor (PIR) sensor coupled with a Zigbee interface. Inside the ultrasonic welded case ...

Provides protection against false alarms due to RF signals, electrostatic discharge, and electrical overstress. Provides alarm history when needed. IS-280CM-N long range PIR and IS-280CM-W wide range ...

Get close enough to this raven and you’ll set off the PIR sensor, which triggers lighting and sound effects, including some spooky glowing and blinking red eyes, general cawing, and of course ...