[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 ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. With summer in full swing in North America, finding a way to keep ...

Arriving home to a dark house with an armful of anything is usually an exercise in fumbling confusion until someone manages to turn on a light. [Pavel Gesyuk] has circumvented this problem entirely by ...

If you want to keep an eye on your home—whether you're worried about burglars or just worried about the dog getting into places it shouldn't—this super simple DIY alarm will send you an SMS message ...

A few years ago Josef Holmner created an awesome Arduino powered wrist worn quadcopter controller that allows pilots to control their flying drones using just one arm, and gestures which trigger ...