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. PIR sensors are used for ...

Wave Sensors Can Track Multiple People . mmWave stands for millimeter wave and describes the wavelengths of the radio waves that are used by these sensors, which are small enoug ...

One of the innovations gaining traction in recent years is touchless toilet technology. Designed to eliminate the need for ...

As an example, [Circuit Valley] has an IKEA Vallhorn motion sensor for a teardown, it’s as you might expect, a passive infrared sensor (PIR) sensor coupled with a Zigbee interface. Inside the ...

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 ...