While the sensor has limited field-of-motion detection, it can control the lights in any part of your home, so walking through your front door could trigger your upstairs bedroom lights to turn on.

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. Before beginning the construction ...

A motion sensor light is almost identical to a conventional light fixture in terms of wiring, but because it has its own switch, it shouldn't be controlled by another switch in the house.

The built-in light sensor is also smart enough to measure ambient light so it knows when it's daytime and nighttime. This is important because the motion sensor can be configured to adjust your ...

Amazon Echo’s built-in ultrasonic motion sensing can let you easily automate lights and fans with Alexa routines, without buying anything else.

Before the idea of a ‘smart home’ came long, people had to actually walk over to a switch to turn lights on and off—it was barbaric. Now you can illuminate your entire house with just a few ...

It lets you pick out which lights to turn on when a motion sensor detects movement, as well as how long to keep them on for when it detects that everyone has left.

Philips Hue is expanding its line up of smart light devices with a motion sensor. This one is pretty straightforward — when you walk in front of the sensor, your Hue lights will turn on.

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

Installation and Setup If you've ever swapped out a light switch, it's a pretty straightforward process, and installing the Eve Light Switch isn't much different.

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.

They may not work in heavy-traffic rooms, but motion-activated light switches can save homeowners money in medium-to-low traffic rooms or ones in which lights are accidentally left on.