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 ...

The IS-280CM is a commercial ceiling mounted passive infrared motion sensor that provides a 360° detection pattern in a sleek ... IS-280CM-N long range PIR and IS-280CM-W wide range PIR ceiling mount ...

The BOM on [Jeremy S Cook]’s build is extremely short – just a PIR sensor and an optoisolator, with a battery, a plug for the camera’s remote jack, and a 3D-printed bracket. The PIR sensor ...