[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 ...

Smart lights are a great way to enhance home security. Being able to flip on the lights remotely or automatically, you can give the impression that someone is home and expose potential intruders. It’s ...

Just in the past two years, motion sensing technologies have begun appearing everywhere – video consoles, smart phones, TV remote controls and personal training devices – as we geo-tag our cell phone ...

Last year, I took a look at some mostly low-cost passive infrared (PIR) motion sensor modules. Then recently, I became more aware of cheap microwave radar motion sensor modules. The popular version of ...

Ben is a writer for Game Rant. He has a passion for gaming and has been playing video games since he was 6. Ben has always been a fan of open-world games, having gotten into them back when RuneScape ...

When your arm moves inside a loose shirt, the fabric does not simply follow along. It ripples, folds, and shifts in ways that exaggerate motion. Those subtle distortions, long treated as measurement ...

The invisible sensor network that powers your phone's smartest features.