2-Digit Object Counter

Object counters are widely used devices. They are used at different places for different purposes and different usages. They can be used as visitor counter, vehicle counter material/product counter...

ASK Modulator using 555 Timer IC

ASK means Amplitude Shift Keying (also known as ON-OFF keying). It’s one of the Modulation Scheme used to transmit Digital Data using High Frequency carrier signal. It’s very simple and...

DIY Make Remote Operated Light Fountain

The decorative Light Fountains are readily available in market as gift articles. Here the given project demonstrates how to operate it using TV remote (or any other remote of AC or Music System etc...

DIY LASER Based Pulse Transmitter and Receiver

The circuit presented here transmits pulses wirelessly to long distance (more than 20 meter) using keychain LASER (readily available in market). A transmitter generates continuous pulses that are f...

Simple RPM Counter using IC 555

RPM counters are used to measure Speed of Motors (AC/DC) or any Rotating Object. They measures and indicates current Rotating Speed of Motor. They are very essential in applications like Speed Cont...

Day and Night Indicator using IC 555

The main aim of the Day and Night Indicator circuit is to help us to turn on the lights as the night falls automatically and as the dawn sets in the Day and Night Indicator automatically gets switc...

DIY Homemade Melody Door Bell Circuit

In most of the homes the door bells are conventional ding-dong type. Most of us don’t like its sound. Due to mechanical moving parts with spring mechanism its long term durability is question...

How to make Smart DC fan

In almost all flats the elevators (lifts) are essential. In high rise buildings there are 2 or 3 or even more lifts. These lifts are major source of electrical energy consumption. Why? The lifts re...

Electronic Mosquito Repellent Circuit

This circuit is very much easy to understand and use. A circuit with minimum components repel mosquito Large number of things like coils, creams, oils is available in the market to repel mosquito. ...

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