Darkness Safety Light Circuit for Bikers and Pedestrians

In this article we study a neat little LED flasher circuit which could help the bikers and pedestrians, runners, to create a blinking safety light on their body outfit, such as on shirt, belt, shoulders, and use it to indicate the nearby vehicles about their presence in complete darkness, and avoid mishaps or accidents. The […]

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Mains Wiring Phase, Neutral, Earthing Tester Circuit

The post discusses a circuit which can be used for testing mains wiring phase, neutral, earthing line faults simply through 3 neon lamp illumination with a specified pattern, let’s learn the details. In this article we include yet one more easy circuit, which involves a couple of neon lamps (with integrated series resistors) a push-button […]

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Simple LED Stopwatch Using IC 555 and IC 4017

In this post we are going to construct a simple LED stopwatch using IC 555 timer and IC 4017 decade counter. The elapsed time is indicated by LEDs which illuminates in a sequence. Stopwatch is very important piece of equipment in sports, cooking, laboratory, medical etc. They are used to measure short period of time […]

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Road Diversion Warning Indicator using Running LED Lights

The discussed LED lamp chaser circuit can be effectively used for indicating or warning road diversions or when a roadwork is in progress, especially in areas where street lamps are absent and in accident prone dark roadways. Roadworks and highways are usually marked during the hours of darkness by yellow flashing lights. These may often […]

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