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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

Make this DIY Spot Welding Machine using MOT and IC 555

Last Updated on June 6, 2026 by Swagatam Leave a Comment

Building a spot welding machine at home, it does not really need those complex SMPS circuits or costly stuff, nope. Instead a much simpler way is there, which people use, and it works quite well. We can use a microwave oven transformer, that MOT, and then add a small timing circuit with it, so now […]

Filed Under: SMPS and Converters Tagged With: 555, DIY, Machine, MOT, Spot, Welding

2 Simple Washing Machine Circuits Explained

Last Updated on May 28, 2026 by Swagatam 9 Comments

simple2Bwashing2Bmachine

In this post I have explained how to make a couple of simple washing machines using a bidirectional single motor with timer and a simple version using cam shaft mechanism, cheaply. In the first design we use a bidirectional, alternately rotating clockwise and counter clockwise with a pause in the middle: Audio/Video Representation Circuit Working […]

Filed Under: Home Electrical Circuits, Motor Controller Tagged With: Machine, Simple, System, Washing

Tennis Ball Throwing Machine Circuit

Last Updated on May 21, 2026 by Swagatam 4 Comments

tenns ball throwing machine circuit compressed

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 this article I have explained the motor control circuit which will toggle the catapult mechanism back and forth, with a 2 second time interval, while […]

Filed Under: Games and Sports Projects Tagged With: Ball, Machine, Tennis, Throwing

Portable Power Generator Circuit – The N-Machine

Last Updated on May 20, 2026 by Swagatam 46 Comments

n2Bmach 1

When this free energy generator called the N-Machine was developed by the famous physicist Bruce DePalma he could implement a 100 kilowatt generator right in his garage with ordinary tools. His machine could power his entire house electrical completely free of cost, forever. But sadly he could never use it since making such device or […]

Filed Under: Energy from Magnets Tagged With: Energy, Free, Generator, Machine

Making a Time Machine – Concept Explored

Last Updated on May 20, 2026 by Swagatam 3 Comments

Wondering how to travel in time? Learn it with great Sir Stephen Hawking, according to whom time warp may be an option but seems pretty impractical, the reason being the feed back loop which will just oppose the feasibility of making a time machine and the concept using this theory. Are you intrigued by the […]

Filed Under: Electronics Theory Tagged With: Concept, Explored, Machine, Making, Time

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