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It’s pricey and likely won’t work with an existing non-Hue security system, but the Philips Hue Secure contact sensor still ranks as one of the best door and window sensors we’ve tested. Signify-owned ...

LEDs are a wonderful technology. You put in a little bit of power, and you get out a wonderful amount of light. They’re efficient, cheap, and plentiful. We use them for so much! What you might not ...

The project illustrates the use of LEDs for signalization or as ambient light senors. From the schematic diagram, the LED is connected between two pins GP0 and GP1 of microcontroller or it can be any ...

Need a cheap and easy way to deter intruders? For homeowners, outdoor lighting is a game changer for providing a line of sight on potential trepassers without running up costly energy bills. If you're ...

This is a story about a successful system that nevertheless failed to make the cut. An experimental LED brightness adjustment is something [Mitxela] explored in a project for a high-precision clock; ...