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Earthquake Sensor Circuit [Seismic Sensor]

Last Updated on September 30, 2021 by Swagatam 41 Comments

The article shows an earthquake sensor circuit idea which incorporates an innovative way of detecting the minutest of shocks caused by a possible earthquake tremor. The circuit is so sensitive […]

Filed Under: Security and Alarm

Cell Phone Controlled Door Lock Circuit

Last Updated on July 3, 2019 by Swagatam 49 Comments

Controlling your door lock through your personal cell phone was never this easy. Learn how to build a simple electronic circuit that will help in converting your ordinary door lock […]



Filed Under: Security and Alarm, Transmitter Circuits

2 Simple Earth Leakage Circuit Breaker (ELCB) Explained

Last Updated on October 14, 2021 by Swagatam 36 Comments

The discussed Earth leakage circuit breaker diagrams will monitor the leakage current level of the earthing line of your house electrical sockets and will trip the appliances as soon a […]

Filed Under: Mini Projects, Security and Alarm

A Homemade Fence Charger, Energizer Circuit

Last Updated on September 19, 2022 by Swagatam 136 Comments

The electric fence charger circuit presented here is basically a high voltage pulse generator. The super high voltage is derived from a commonly used automobile ignition coil. An astable multivibrator […]

Filed Under: Security and Alarm



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