This Circuit can compare the Light level in an area. It uses a PN Photodiode as the light sensor and IC CA3140 as voltage comparator. The circuit is ideal as the front end of burglar alarm circuits.

This light sensor switch circuit allows the automatic connection of a lamp when the light is low (at nightfall) and will maintain the lamp ON for a certain period of time. This time can be adjusted ...

TOKYO, Nov. 17, 2025 /PRNewswire/ -- SwitchBot, a leading provider of AI-enabled embodied home robotics systems, today ...

If you own Philips Hue smart bulbs, don’t think twice about adding Philips’ Hue motion sensor; it’s a nearly flawless upgrade to the Hue ecosystem. Motion-activated lighting isn’t a new idea. Whether ...

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