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Cyclist’s Safety Light Circuit – Nighttime Visibility for Cyclists, Walkers, Joggers

A simple flashing bicycle safety light circuit has been discussed in the following article In many occasions when we happen to go down the road at night, it is normal to meet cyclists that are visible only when they might be within walking distance. In case you’re a bike aficionado and prefer to stroll in … Read moreCyclist’s Safety Light Circuit – Nighttime Visibility for Cyclists, Walkers, Joggers

Making an Accurate Speedometer Circuit

Here we’ll see how a simple yet accurate analogue speedometer circuit can be constructed at home using just a single IC and a few external passive components. The design can be used for all 2-wheeler, 3-wheeler, even in bicycles for indicating their speeds. Using Frequency to Voltage Converter In my previous article we learned about … Read moreMaking an Accurate Speedometer Circuit

Bicycle Dynamo Battery Charger Circuit

The post explains a simple constant current bicycle dynamo battery charger circuit which can be used for charging a Li-Ion or Ni-Cd battery from a bicycle dynamo electricity source. The idea was requested by Mr. Saif Khan. Technical Specifications I want to charge a battery through a dynamo fitted to a cycle. Can you please … Read moreBicycle Dynamo Battery Charger Circuit

Bicycle LED Light Circuit Using a Single 1.5V Cell

The proposed bike flasher flashes two white LEDs from a single 1.5V cell by using a solitary general purpose transistor, and does not need core for the involved transformer, the main core being the Air itself. Using Joule Thief Concept Every Joule Thief circuit uses ferrite rod or toroid core and its turns are wounded … Read moreBicycle LED Light Circuit Using a Single 1.5V Cell

Free Energy Bicycle Generator Circuit

The following post describes a simple circuit idea which can be used for generating free electrical energy for illuminating a few safety flashing LEDs on a  Bicycle. The Circuit Concept A bicycle like any other modern vehicle needs provision of lighting system for its use at night or cycling in lesser light. Usually a bicycle is … Read moreFree Energy Bicycle Generator Circuit

How to Make a Bicycle Horn Circuit with Ringtone

In this post we discuss the complete construction of an electronic bicycle horn circuit which will resemble a phone musical ringtone sound. Introduction The old fashioned mechanical bicycle horns are slowly getting discarded now and the folks are more interested to replace them with the new musical horns imitating well as phone ringtones. One such … Read moreHow to Make a Bicycle Horn Circuit with Ringtone

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