It’s a fairly simple project, too: just hook an Arduino Uno up to a motion sensor and an electronic switch called a relay, then plug in your fan, and you’re good to go.

How the reed switch works in a window sensor Image used with permission by copyright holder The reed switch is the core component in a window alarm.

A gangly-looking motion detector floodlight is fine for scaring off a backyard intruder, but it doesn't look good on your ...

GlacialLight has added the GL-PIR10C, a versatile infrared motion sensing switch, to its popular range of lighting products.

At the back, Outdoor Motion Sensor features a mounting plate and a variety of mounting options so you can put it wherever it works best. There's an option for a flat wall or mounting it at a ...

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.

Philips is retroactively adding HomeKit support and features to several existing Hue accessories through the latest software update. Hue tap, dimmer switch, and motion sensor all gain ...

The $49.99 Home Control Switch and $59.99 Motion Sensor will both be available in May, and be sold bundled together for $99.99.