Most switches have built-in, adjustable timers that turn the lights off again within a few minutes if the intruding heat source leaves the infrared detection field. Early motion-detecting sensors ...

The motion sensor switch circuit can automatically turn on a water sprinkler ... Please note that, here T1 is wired as a mini electronic timer. Even after the PIR relay switched off, output relay ...

If too many lights burning day and night have your electric meter spinning like a top, some motion-sensor wall switches may start bills heading in the right direction. This new breed of “smart ...

One of the plugs will be an outdoor model with a countdown timer, while the others will be indoor units; one of the plugs will have a motion sensor. The company’s five smart switches start at $ ...

or you can manually turn a switch on and off. It could be beneficial to find a light that has different modes of motion sensor activation in case there is a blind spot that the sensor can't reach ...

First of all, motion sensing switches do have some “phantom” energy use. According to this study, motion sensor switches use about a watt of energy on standby mode (23 hours a day) and 5 watts ...

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. If that sounds ...

I’ve had one motion sensor coupled to a few smart lights in my hallway and I haven’t touched the physical switch a single time since then. I rely on this setup so much that it migrated with me ...