This motion detector alarm can detect a moving person from a distance of 1 meter. It uses a dual IR Transmitter-Receiver module HOA1405. When the sensor detects the reflected IR rays, alarm will sound ...

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 ...

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 ...

Jon Porter is a reporter with five years of experience covering consumer tech releases, EU tech policy, online platforms, and mechanical keyboards. Smart home security company Abode is releasing an ...

I've never actually had anyone try to run off with my laptop, but then again I usually don't leave it sitting somewhere while I wander off. For those of you that feel the urge to leave your precious ...