EDN

LED Security Light with PIR Motion Sensor

Here is one simple circuit of a general-purpose white LED security light with Passive Infrared (PIR) Motion sensing mechanism. At the heart of the circuit is a PIR sensor module SB0061. SB0061 is a ...
Boise State University

Questions by kids: How do Halloween animatronics know exactly when to scare you?

Many Halloween animatronics that spring to life when you least expect it rely on a clever little device called a passive ...
Electronic Design

Tiny 60-GHz Motion Detector Challenges PIR Approach

Many close-proximity motion detectors use the classic, widely available passive-infrared (PIR) approach, which is effective but has limited sensitivity and adjustability, and can’t “see” through ...
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 ...