could be used but I found no simple circuits. My first thought was just to connect a series current limiting resistor and LED to the cathode so that the LED would light when the reference ...

This is a very simple touch light switch circuit that uses the 4011 IC, one transistor and a relay. The C1 capacitor stores the switching state at a certain time and is charged or discharged according ...

This light sensor switch circuit allows the automatic connection of a lamp when ... From the moment that T4 and T5 are opened, relay’s LED start to light and powers the lamp. As soon as one of the ...

This file type includes high-resolution graphics and schematics when applicable. 1. Construction of the triboelectric switch shows the layered implementation, which allows for rubbing and thus ...

many of which have simple circuit-based on/off control for lights. [Paulo Borges] has created something quite different, however, with his in-the-wall servo-controlled light switch. This build ...

thus leaving the light on all day long.<BR><BR>Anyway, what I would LIKE to find to fix this problem is (I think) pretty simple. A normal toggle-type on/off switch that will turn off ...

The other requirements for the project were to use a microcontroller and to keep it simple. [Vadim] chose an ATtiny2313 to handle the RC-5 IR protocol and switch the light. The circuit still has ...

Learn how to make your own rechargeable LED emergency light at home using simple components! This easy DIY project requires a plastic container, switch, charging module, buck converter ...