This light dependent switch (dark activated switch) was constructed around the operation of a ORP12 photocell where light is the most important factor. Photocell – a type of resistor wherein the ...
Editor’s note: This article will be in two parts. Part 1 is component-related and Part 2 is applications. Please also see Planet Analog blog “LEDs Are Photodiodes Too” as an intro to this article.
Smart lights are a great way to enhance home security. Being able to flip on the lights remotely or automatically, you can give the impression that someone is home and expose potential intruders. It’s ...
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