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Archives for 2015

Remote Controlled Ceiling Fan Regulator Circuit

Last Updated on February 17, 2026 by Swagatam 122 Comments

infraredfandimmercircuit

In this article I have explained a few simple infrared TV remote controlled fan regulator or dimmer circuits using ordinary parts such as a 4017 IC and a 555 IC. The first concept uses a standard MOSFET based SSR for controlling the fan load and for easy and clean PWM signal operation from the IC […]

Filed Under: Remote Control Circuits Tagged With: Ceiling, Controlled, Regulator, Remote

How to Generate Electricity from Shoe while Walking

Last Updated on January 21, 2026 by Swagatam 23 Comments

In this post I have explained how to generate electricity from our shoe while walking. This electricity can be simultaneously used for charging a cellphone battery. In a few of my previous posts I have explained how simple machines can be efficiently used for extracting free electricity, you may learn more on this through the […]

Filed Under: Inverter Circuits, Renewable Energy Tagged With: Electricity, Generate, Shoe, Walking, while

Make Free Drinking Water from Sea Water

Last Updated on January 21, 2026 by Swagatam 16 Comments

sea2Bwater2Bdesalination

In this post I have explained a cheap yet effective method of desalinating large quantities of sea water into free drinking water at home. The idea was requested by Mr. Mike. Technical Specifications This is Mike Cardenas and am writing to you with reference to your invention of a Solar Water desalination set-up from 2011 […]

Filed Under: Renewable Energy Tagged With: Drinking, Free, Water

Simplest Windmill Generator Circuit

Last Updated on January 21, 2026 by Swagatam 70 Comments

simplewindmillgenerator

In this post I have explained how to make a simple windmill generator circuit which can be used for charging batteries, or for operating any desired electrical equipment, all through day and night, free of cost. Solar Panel vs Windmill One of the biggest drawback of solar panel electricity is that it’s available only during […]

Filed Under: Renewable Energy Tagged With: Generator, Simplest, Windmill

Quadcopter Remote Control Circuit without MCU

Last Updated on December 19, 2025 by Swagatam 115 Comments

DRV

Although a quadcopter remote control circuits can be very easily procured from the market or from any online store, an avid electronic hobbyist is never allowed to learn how actually these function and whether or not these can be built at home? In this article I have explained how to build a simple quadcopter remote […]

Filed Under: Remote Control Circuits Tagged With: Control, MCU, Quadcopter, Remote, without

Solving Inverter “No Load Auto-Shutdown” Problem

Last Updated on July 10, 2025 by Swagatam 14 Comments

no2Bload

In this post I have explained how to trick an inverter’s “no load auto-shutdown” feature through an external circuit so that the inverter may be kept running even with minor, below permissible loads at the output. The idea was requested by Mr. Em. Technical Specifications Thanks for your prompt responses and guidance. I was wondering […]

Filed Under: Inverter Circuits Tagged With: Auto, Inverter, Load, Problem, Shutdown, Solving

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