This project demonstrates how to interface a PIR (Passive Infrared) motion sensor with an Arduino Uno R3 to detect movement and trigger an LED. When the PIR sensor detects motion, the LED turns on for ...

This human detector system is built around an Arduino, a PIR sensor, a servo motor and other commonly available components. Check it out now ...

A PIR sensor on the front of the can detects when somebody gets close, and plays a message reminding them to make use of the trash cans provided on the playground.

What does PIR sensor actually mean? Find out inside PCMag's comprehensive tech and computer-related encyclopedia.