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Electronic

Electronic Voting Machine with SD Card Module

Last Updated on June 9, 2026 by Swagatam 10 Comments

EVM 2

In this post I will show how to construct a circuit for an Electronic Voting Machine using Arduino and SD card module where the election data is stored in the SD card.  UPDATE: This circuit has been upgraded to an improved version in which the results can be viewed over an attached LCD display, you […]

Filed Under: Arduino Projects Tagged With: Card, Electronic, Machine, Module, SD, Voting

DSO138: Best Small Oscilloscope for Electronic Hobbyists

Last Updated on June 8, 2026 by Swagatam 29 Comments

DSO138 oscilloscope button specifications

An oscilloscope is a device that measures and analyses signals in circuits. It’s an indispensable equipment for everyone who works with electronic circuits since it enables them to see the activity of a wave in real – time basis. The DSO138 is one of the most popular oscilloscopes on the market today. We’ll give a […]

Filed Under: Meters and Testers Tagged With: Best, DSO138, Electronic, Hobbyists, Oscilloscope, Small

Electronic Candle Flame Simulator Circuit

Last Updated on June 8, 2026 by Swagatam Leave a Comment

electronic candle light simulator circuit

This electronic candle accurately imitates the flickering flame of a lit wick, but it remains considerably cleaner, doesn’t drip, and poses no risk of setting your interior on fire. It only requires a handful of ordinary components and is powered directly from the mains with minimal energy consumption. Its lifespan will be exceptionally long. How […]

Filed Under: Lamps and Lights Tagged With: Candle, Electronic, Flame, Simulator

40 watt Electronic Ballast Circuit

Last Updated on June 1, 2026 by Swagatam 111 Comments

1 5

The proposed 40 watt electronic ballast is designed to illuminate any 40 watt fluorescent tube, with high efficiency, and optimal brightness. The PCB layout of the proposed electronic fluorescent ballast is also provided along with the torroid and the buffer choke winding details. Introduction Even the promising and the most talked about LED technology is […]

Filed Under: Lamps and Lights Tagged With: Ballast, Electronic, Watt

Make an Electronic Candle at Home Circuit

Last Updated on June 1, 2026 by Swagatam 25 Comments

candle 1

The proposed electronic candle circuit  does not use wax, paraffin or flame, yet the device perfectly simulates a conventional candle. Basically it incorporates ordinary electronic parts like LED and battery. The interesting part of it is that it can be extinguished with literally a puff of air. The proposed electronic LED candle circuit helps you […]

Filed Under: Lamps and Lights Tagged With: Candle, Electronic, Home

Mains 20 Watt Electronic Ballast Circuit

Last Updated on June 1, 2026 by Swagatam 22 Comments

20 watt flourescent tube

In this post I have explained a simple 20 watt fluorescent ballast circuit using a single chip FAN7711 from Fairchild semiconductor. The proposed mains 220V operated, 20 watt fluorescent ballast circuit is built around an LCC resonant tank and a half-bridge network. Implementing Zero Voltage Switching The main features and operations may be understood with […]

Filed Under: Lamps and Lights Tagged With: Ballast, Electronic, Mains, Watt

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