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Newly Updated Circuit Projects:

Ultraviolet (UV) Sanitizer Circuit for Disinfecting Home Materials

Last Updated on May 24, 2026 by Swagatam 51 Comments

cell phone sanitizer circuit

In this post I have explained the making of a simple, cheap yet effective ultraviolet or UV-C home sanitizer circuit using ultra violet rays or UV-C. The idea was requested by Mr. Shah (kristin). Using UV Rays against Coronavirus The UV-C sanitizer circuit I have explained below can be effectively applied for sanitizing all external […]

Filed Under: Health related Projects Tagged With: Disinfecting, Home, Materials, Sanitizer, Ultraviolet, UV

How to Generate Pure Oxygen and Hydrogen at Home

Last Updated on May 24, 2026 by Swagatam 91 Comments

generateoxygenandhydrogenathome

In this article I have explained a simple method through which large amounts of oxygen and hydrogen could be generated at home using an ordinary electrical setup, and very cheaply. Before I have explained the actual process, it would be important to read the following points related to the experiment: Warning: The simple concept of […]

Filed Under: Health related Projects Tagged With: Generate, Home, Hydrogen, Oxygen, Pure

Room Air Ionizer Circuit – For Pollution Free Living

Last Updated on May 24, 2026 by Swagatam 159 Comments

Air ionizer circuit diagram

In this article I have explained how to build a simple room ionizer circuit for getting a clean, pollution free environment right inside our home. Introduction Have you ever thought or wondered why atmosphere over hill stations and other similar places which are far away from modern cities give you a feeling of  freshness and good health? […]

Filed Under: Health related Projects Tagged With: Free, Ionizer, Living, Pollution, Room

Heart Rate Monitor Circuit

Last Updated on May 24, 2026 by Swagatam 18 Comments

heart2Brate2Bprocessor2Bcircuit

In this article I will comprehensively discuss a relatively accurate electronic heart rate sensor circuit processed by a few discretely wired opamp circuit stages, and subsequently we’ll learn how this can be modified for making a heart rate monitor alarm circuit. Using IR Photodiode Sensors The sensing of the heart pulses is basically done by […]

Filed Under: Health related Projects Tagged With: Heart, Monitor, Rate

Ultraviolet UV Water Filter/Purifier Circuit at Home

Last Updated on May 24, 2026 by Swagatam 14 Comments

UVwaterpurifiercircuitdevice

The post describes an easy method of making an ultra violet water purifier circuit using ordinary electronic components. How UV is Used as Germicidal Ultraviolet germicidal irradiation (UVGI) is a water treatment method which employs UV or ultraviolet light rays in the range of short wavelength in order to eliminate the present pathogens and microorganisms. The technology involves […]

Filed Under: Health related Projects Tagged With: Filter, Home, Purifier, Ultraviolet, UV, Water

4 Universal Electronic Thermometer Circuits

Last Updated on May 24, 2026 by Swagatam 16 Comments

roomthermometercircuitusinglm35IC

Here I have explained four best electronic thermometer circuits which can be universally used for measuring body temperatures or atmospheric room temperatures ranging from zero degrees to 50 degrees Celsius. In the previous post I explained some of the features of the outstanding temperature sensor chip LM35, which gives outputs in varying voltages that’s directly […]

Filed Under: Health related Projects Tagged With: Circuits, Electronic, Thermometer, Universal

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