HomeKit Weekly: Aqara Presence Multi-Sensor FP300 brings Thread and motion automations to your smart home

The Aqara FP300 is a battery-powered presence sensor with Thread and mmWave radar, giving HomeKit precise motion and ...
EDN

Security Light & Switch with PIR Sensor

Moderately priced Passive Infrared PIR Sensor modules are now widely available. By using these readymade and pre-configured PIR sensors, even an average electronics hobbyist can construct his/her own ...
Dazebao News

Mini PIR Motion Sensor Module – DC 3.3V-15V Body Sensing For DIY Projects

Buy Mini Body Sensing Detector Mini PIR Motion Sensor Module – DC 3.3V-15V Body Sensing For DIY Projects Esp32 Sensors ...
EDN

Motion Activated Switch for Alarm, Light or Water Sprinkler

The motion sensor switch circuit can automatically turn on a water sprinkler but you can easily use it as a motion sensor light switch or motion activated alarm too. Before beginning the construction ...
Hackaday

Passive Infrared (PIR) Sensor Tutorial

[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 ...
PC Magazine

PIR sensor

(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. PIR ...