Circuit diagrams and schematics - Electronic projects

There are a few situations when a power failure is particularly difficult to handle. Some of these circumstances occur in the bathroom. This little circuit will pay for itself many times over the first time it is used, especially if you are in the shower. Related Links More circuit about Light Control More circuit about [...]

This is small electronics kit Light Actuated Switch KIT. It is automatically turn something on at night time and back off at dawn. A heavy duty relay provides NO and NC contacts rated at 5A at 24V. IC LM324 design delay circuit avoids cycling on/off at marginal thresholds. Wide range sensitivity adjustment matches any application. [...]

Here’s a simple problem: “How do you make an LED turn on when it gets dark?” You might call it the “nightlight problem,” but the same sort of question comes up in a lot of familiar situations– emergency lights, street lights, silly computer keyboard backlights, and the list goes on. Source:http://www.evilmadscientist.com/article.php/nightlight Thank you. Related Links [...]