While PIR sensors can be used with Arduino and other microcontroller boards, those best-suited for hobby use are smart enough to perform simple tasks without any programming.

If you can install a conventional outdoor light fixture, you can install a motion sensor light, although aiming and adjusting it takes extra effort.

The fingerprint sensor can quickly unlock your BlackBerry Motion. Here's how to set it up.

Mobile apps need explicit permission to access your smartphone's motion and light sensors. Mobile websites? Not so much.

Philips Hue motion sensor turns lights on for you All for the sake of convenience (and, let's be real, laziness).

HomeKit motion sensors are a vital accessory when building a smart home than runs by itself without manually turning devices on and off.

A HomeKit motion sensor doesn’t have to be just a motion sensor, though. You can use a HomeKit camera to act as a motion sensor even if it’s set to not record when people are at home.

The Lightify Smart Sensor is a good add-on for Sylvania smart bulbs, but the Hue sensor demonstrates why Philips leads the market.

They don’t work with sensors, or things that report a status. (Accessories often have sensors associated with them, like a light or motion sensor on a camera.) ...

Motion zones are an easy way to customize how your live-streaming security camera detects activity. Ring security cameras and doorbells let you create three detection zones for free.