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Whistle Activated Switch Circuit

Last Updated on September 8, 2022 by Swagatam Leave a Comment

In this post we will learn how to build a simple whistle sound operated relay circuit, which can be used for switching ON/OFF a 220 V load through whistle sounds. […]

Filed Under: Fun Projects, Mini Projects, Remote Control

Bicycle Speedometer Circuit

Last Updated on June 3, 2022 by Swagatam 12 Comments

In this article we will learn how to build a simple bicycle speedometer circuit which can be used to measure the speed of the bicycle. What is a Bicycle Speedometer, […]



Filed Under: Fun Projects, Meters and Testers

Electronic Cricket Sound Generator Circuit

Last Updated on April 30, 2022 by Swagatam 2 Comments

The post explains how to build a simple cricket chirping sound generator circuit using a single IC 4093 and a few other passive components. An electronic cricket sound generator is […]

Filed Under: Fun Projects, Oscillator Circuits

Circuit Projects for Beginners and School Students

Last Updated on November 4, 2022 by Swagatam 43 Comments

In this article we will learn how to build small electronic circuit projects suitable for beginners, young hobbyists, school students, who are new to electronics and are at the initial […]

Filed Under: Fun Projects, Mini Projects

Robot Voice Generator Circuit

Last Updated on October 26, 2021 by Swagatam 13 Comments

A robot voice generator circuit is a device which modifies a normal human voice into a typical robot like voice, that we normally come across in movies, or video games. […]

Filed Under: Fun Projects

Tennis Ball Throwing Machine Circuit

Last Updated on May 23, 2021 by Swagatam Leave a Comment

In article below explains the control circuit for an automatic tennis ball throwing machine, designed to throw a tennis ball through a mechanized catapult machine, controlled with powerful motors. In […]

Filed Under: 555 IC Circuits, Fun Projects

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