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Newly Updated Circuit Projects:

Triac Battery Charger Circuit

Last Updated on May 17, 2026 by Swagatam 57 Comments

triac battery charger circuit 750x445

A triac based battery charger replaces a normal relay for automatically cutting off power to the battery very efficiently. In this post I have explained a simple a battery charger circuit using a triac auto shut-off facility. The circuit can be used for charging any high current, high AH types battery with a full-charge auto […]

Filed Under: Battery Charger Circuits Tagged With: Battery, Charger, Triac

How to Make Arduino on Breadboard – Step by Step Instructions

Last Updated on May 14, 2026 by Swagatam 18 Comments

breadboard arduino

In this article I have explained how to make an Arduino on a breadboard. We are also going to see what is an Arduino, how to program it and how to assemble them as standalone microcontroller on a breadboard or PCB. Arduino was a boon for those who wanted to learn microcontrollers and embedded system […]

Filed Under: Arduino Projects Tagged With: Arduino, Breadboard, Instructions, Step

Motorcycle Accident Alarm Circuit

Last Updated on May 16, 2026 by Swagatam 2 Comments

In this post I have explained how to make an useful motorcycle accident alarm circuit for sending alarm signal to the distant population in an event of an accident, especially if it happens in a relatively lonely area. The idea was requested by Mr. Rayan D’souza. Circuit Objectives and Requirements I want a circuit that […]

Filed Under: Automobile Electronics Tagged With: Accident, Alarm, Motorcycle

LM35 Pinout, Datasheet, Application Circuit

Last Updated on May 18, 2026 by Swagatam 27 Comments

lm35

In this post I have explained how to make an LM35 application circuit by understanding its datasheet, pinouts and other technical specifications. By: SS kopparthy LM35 Main Specifications The IC LM35 is a temperature measuring device that looks like a transistor (most popular package is TO-92 package). This device is found in most of the […]

Filed Under: Datasheets and Components Tagged With: Application, Datasheet, LM35, Pinout

Speed Dependent Brake Light Circuit

Last Updated on May 16, 2026 by Swagatam 9 Comments

Tachometer

In this post I have explained an innovative brake light circuit using speed detection of the vehicle which could be a motorcycle. The circuit implements an advanced brake light switch ON ensuring a much safer riding experience for the user. The idea was requested by Mr. Rayan. Circuit Objectives and Requirements I have an idea, […]

Filed Under: Automobile Electronics Tagged With: Brake, Dependent, Light, Speed

IC 555 Pin Description and Working [with Formulas]

Last Updated on May 18, 2026 by Swagatam 21 Comments

723px NE555 Bloc Diagram.svg

In this post I have explained the how IC 555 works, its basic pinout working details and how to configure the IC in its standard or popular astable, bistable, and monostable circuit modes. The post also details the various formulas for calculating the IC 555 parameters. Introduction Our hobby world would be less interesting without […]

Filed Under: Datasheets and Components Tagged With: 555, Description, Formulas, Working

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