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 ...

(Passive InfraRed sensor) A device used to detect motion by receiving infrared radiation. When a person walks past the sensor, it detects a rapid change of infrared energy and sends a signal.

this DIY motion trigger for a DSLR is a quick and easy build, and probably loads more fun. The BOM on [Jeremy S Cook]’s build is extremely short – just a PIR sensor and an optoisolator ...

Sensify is a new technology that can turn Zigbee switches, bulbs, and plugs into sensors with ... passive infrared sensing (PIR) tech, which is traditionally used for motion sensing.

There’s computer vision that detects changes at the pixel level; there’s PIR that uses heat signatures ... First, while all ...