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The 555 circuit below is a flashing bicycle light powered with four C,D or AA cells (6 volts). Two sets of 20 LEDs will alternately flas... -
The simple short circuit and overload protector design presented here can be used for protecting valuable mains operated gadgets like... -
The circuit presented here waters your plants regularly when you are out for a vacation. The circuit comprises a sensor part built usin... -
Modern electronics is indispensable for every large model railroad system, and it provides a solution to almost every problem. Although... -
When turning a computer on and off, various peripherals (such as printers, screen, scanner, etc.) often have to be turned on and off as ...
