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Archives for 2014

Microcontroller Basics Explored

Last Updated on May 14, 2026 by Swagatam 9 Comments

microcontroller pinout

One thing is great about microcontroller ICs, these are available almost in all parts of the globe and electronic retailers. Introduction Fundamentally microcontroller devices are popularly used in applications involving assessments of the surrounding environment and in similar electronics. You could find these devices being used for displaying a certain parameter, in motor control applications, […]

Filed Under: Arduino Projects Tagged With: Basics, Explored, Microcontroller

Arduino Mains Failure Battery Backup Circuit

Last Updated on May 14, 2026 by Swagatam 6 Comments

arduinoback up

In this article I have explained a simple mains failure backup circuit for providing Arduino boards an uninterruptible supply during such situations. The idea was requested by Mr. Fredrik. Technical Specifications This blog gave me a lot of interesting information. Especially the power supply circuit with battery backup part. The reason for this is that […]

Filed Under: Arduino Projects Tagged With: Arduino, Backup, Battery, Failure, Mains

ATmega32, Pinouts Explained

Last Updated on May 14, 2026 by Swagatam 1 Comment

atmeag32 pinouts

The Atmel AVR Atmega32 is a low power CMOS based microcontroller chip manufactured on the AVR advanced RISC architecture. It is featured for carrying out technologically powerful instructions within each of its clock cycles. The chip is also equipped with the capability of achieving throughputs rated at 1MIPS per MHz enabling the system manager to enforce […]

Filed Under: Arduino Projects Tagged With: ATmega32, Explained, Pinouts

Simple ESR Meter Circuits Explained

Last Updated on March 2, 2026 by Swagatam 83 Comments

In this post I have explained a few simple ESR meter circuits which can be used for identifying bad capacitors in an electronic circuit without removing them practically from the circuit board. The idea was requested by Manual Sofian… Technical Specifications Do you have a schematic about ESR meter. Technicians recommend me to check the […]

Filed Under: Meters and Testers Tagged With: ESR, Meter, Simple

Programmable Humidity Controller Circuit

Last Updated on January 26, 2026 by Swagatam 46 Comments

humiditysensorcircuit

The simple programmable humidity sensor circuit I have explained in this article can be used for controlling or maintaining a suitable level of humidity inside a close premise. The circuit could be used in poultry farms or similar areas where humidity level becomes crucial for keeping the animals healthy. The idea was requested by Mr. […]

Filed Under: Water Controller Tagged With: Controller, Humidity, Programmable

How to Generate Cold Electricity

Last Updated on January 21, 2026 by Swagatam 35 Comments

cold1

Cold electricity is generated using an unconventional principle via the negative line of an LC network, which stimulates the flow of positive charge in the line, causing an entropic negative charge to develop across the inductor, which is eventually transferred into the capacitor as “cold” electricity. It’s termed as “cold” since it works within a […]

Filed Under: Renewable Energy Tagged With: Cold, Electricity, Generate

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