An outdoor motion detector light can save electricity and scare off intruders. But if passing cars or the neighbor's dog ...

[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 ...

IR-8 from Climax from the passive infrared motion detector is a microprocessor controlled PIR Detector. Its advanced digitalized adaptive signal processor algorithm enables the PIR detector to ...

Unlike infrared optical sensors that use an LED transmitter and IR receiver, the PIR emits nothing. As its “passive” name suggests, it responds only to infrared energy radiated by the object being ...

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 ...