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7 Interesting IC 555 Siren and Alarm Circuits

Last Updated on December 26, 2024 by Swagatam 45 Comments

whooper siren compressed

In this post I have explained how to use IC 555 to create 7 interesting siren and alarm sound effect generator circuits. The versatile astable multivbrator configuration of IC 555 allows us to implement it for making various types of sirens and alarm circuits. This becomes possible because an astable is basically a waveform generator, […]

Filed Under: Security and Alarm Tagged With: 555, Alarm, Circuits, Interesting, Siren

3 Interesting DRL (Day Time Running Light) Circuits for Your Car

Last Updated on February 23, 2025 by Swagatam 111 Comments

DRL 2

DRL or Day Time Running Lights are a chain of bright lights mostly LEDs installed just under a vehicle’s headlight, which illuminate automatically during day time to ensure that others can distinctly notice the vehicle approaching even from a distance. The following customized DRL circuit was requested by Mr. Jivesh Technical Specification as Provided by […]

Filed Under: Automobile Electronics Tagged With: Circuits, DRL, Interesting, Light, Running, Time

5 Interesting Flip Flop Circuits – Load ON/OFF with Push-Button

Last Updated on February 22, 2025 by Swagatam 129 Comments

Five simple yet effective electronic toggle flip flop switch circuits can be built around the IC 4017, IC 4093, and IC 4013. We will see how these can be implemented for switching a relay alternately ON OFF by alternately pressing a single push-button or through touch pads, which in turn will switch an electronic load […]

Filed Under: Mini Projects Tagged With: Circuits, Flip, Flop, Interesting, Load, ON

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