Frequently Asked Questions in Electronics

1.Why is the letter I used to represent current?                 The letter I seems to be an odd choice for the English language, but it was chosen in the early days of electricity to represent intensity of current which we simply call current...

Microcontroller Tutorial part 1: What is a Microcontroller?

This is my first of five posts in this microcontroller tutorial series. Throughout this tutorial, I will be building a microcontroller circuit while documenting the process. By following what I do, you can make your own at home. My goal is to make a circuit that is as simple as possible, and which...

Purpose Of Inductor And Capacitor In A Circuit

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Memory card password breaking through easy steps.

Always, people want to steal the passwords of their friends. Now, I want to discuss about the trick that, how to get the passwords of our friends memory card? are you ready ? Yeah here are the steps....Steps :1. Download and install FExplorer.2. Insert memory card into your phone....

How An electronic oscillator works ???????

An electronic oscillator is an electronic circuit that produces a periodic, oscillating electronic signal, often a sine wave or a square wave. Oscillators convert direct current (DC) from a power supply to an alternating current signal. Energy needs to move back and forth from one form to another...

simple water level indicator.

the the level of any conductive non corrosive liquids can be measured using this circuit. The circuit is based on 5 transistor switches. Each transistor is switched on to drive the corresponding LED , when its base is supplied with current through the water through the electrode probes. One electrode...

Spell Check is Very Easy Now, smart pen that vibrates when you make spelling Error

Spell Check is Very Easy Now, smart pen that vibrates when you make spelling Error - New Technology Gadget German inventors have developed a new hi-tech pen that gently vibrates every time it senses a spelling mistake or sloppy handwriting. Lernstift is a regular pen with real ink, but inside...

SD card pin-out

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Easy way to Test Transistor is working or Not .

The purpose of the transistor tester circuit is to test the NPN or PNP transistor whether they are working fine or not.So,i decided to provide you the simplest circuit that can be built on breadboard.I think this is the most simplest circuit ever to test the transistor and it works fine.You just need...

What Is a GSM Antenna?

What Is a GSM Antenna?A Global System for Mobile (GSM) antenna is a type of antenna commonly used in mobile phones and cell towers. Global System for Mobile Communications is the most common type of cellular network worldwide. The antenna in a GSM phone allows the device to communicate with another...

USB's interior design

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Types of Diode

Types of Diode  A diode is a semiconductor device that allows current to flow in one direction while block the current to flow in reverse direction.There are two terminals of diode.one is called cathode while the other is called anode. The application of diode is very vast.Mostly they are...

7-Segment Display

7-Segment Displays.... A seven segment display is a basic electronic display device that can display digits from 0-9. They find wide application in devices that display numeric information like digital clocks, radio, microwave ovens, electronic meters etc. The most common configuration has an...

Recorder Pen

hi engineers,!....-> Recorder is this magic pen that converts your written notes into electronic files and then transfers it to your phone and computer via "Bluetooth". I think it’s a great idea and can actually encourage us writers to take to the book and pen more often. I bet authors and...

World-first experiment achieves direct brain-to-brain communication in human subjectsFor the first time, an international team of neuroscientists has transmitted a message from the brain of one person in India to the brains of three people in France.The team, which includes researchers from Harvard...

Device captures energy from walking torecharge wireless gadgetsNew device harnesses the energy created bynatural human walking.Credit and Larger VersionJuly 1, 2014Editor's Note: This Behind the Scenes article wasfirst provided to LiveScience in partnership withthe National Science Foundation.By the...