You can use an LED as a light ... chip inside. Thus, don’t expect to use this technique with your NeoPixels, WS2812Bs, or anything like that. Ultimately, using LEDs as a sensor is a fun technique.

An interior lighting product has received more than a 120 five-star reviews - with customers enthusiastically sharing how they've incorporated it into their homes. The Kmart LED Light with Sensor ...

[hclxing] eagerly picked up an LED ceiling light for ... components inside the unit: an AC power adapter and a small white controller unit. That’s it. Microwave-based motion sensor board on ...

What makes the Philips Hue Outdoor Motion Sensor special is that it can trigger multiple Philips Hue smart bulbs and smart luminaires. And those lights can be both outside and inside your home.

But in almost all cases, you want a presence sensor instead. The one I'd want is the FP300, which Aqara released today at CES 2025. Motion sensors are triggered by light changes. As people cross a ...