Author name: jojo

101-Announcements

The Facebook Wall Caption Contest – Winner Announced

WINNER ANNOUNCED Hi friends, The winner is – Indrajit Biswas (http://www.facebook.com/indrajit45) We have contacted him over Facebook. Now awaiting his reply. Here is the screen shot of winning selection. Hello friends,  We are back with a cool contest using Facebook. This contest is open for any one with a Facebook account.  You only need to […]

Education & Training, Embedded Systems

Embedded Systems Career-An Outline

Many students are not aware of the lucrative opportunities available in the field of Embedded Systems. Most graduates go after the popular “IT” industry to seek a good career. I think there are 2 reasons for this 1)lack of awareness 2) entry barrier. While studying most students may come across the name “Embedded Systems”. Apart

History

The story of Fibonacci series

All of you must have heard about the term “Fibonacci series”. Many of you (including me) might have written programs in different programming languages to generate a “Fibonacci series”. It is quite interesting to see that tutorials of all programming languages would contain a problem to generate fibonacci series upto “N” terms.  Well, this made

8051

8051 Programming Tutorial-Chapter 1

This article series is developed to teach you 8051 micro controller programming. I have divided this programming tutorial into a series of chapters as shown below. So you can start with Chapter 1 and then move to chapter 2 and chapter 3 and so on. So let’s begin the journey right now!  Note: Next chapters

555 Timer IC, Education & Training, Electronics Books

3 Great Books to Learn 555 Timer Circuits and Projects

Any one who is interested in electronics would have come across this IC – 555. It is the one component that is used in many wide range of applications. 555 Timer is used in a variety of applications including monostable and astable multivibrators, dc-dc converters, digital logic probes, waveform generators, analog frequency meters and tachometers, temperature measurement and control devices, voltage regulators etc. So

8051, Electronics Books

4 Books to Learn 8051 Microcontroller

Hello friends, it has been a while since I published here. This article is for students and hobbyists who are interested in playing with microcontrollers. I thought of introducing you to a handful of cool and really useful books on 8051 micro controller. The books suggested have been provided with links to shopping sites to

Electronics Books

4 Great Books to Learn Basic Electronics

For the last 3 years or so, we have been providing great educational content on electronics for free through this website. We have hundreds of circuits and theoretical articles on various topics which you can freely use to learn. But “Electronics” is a vast and wide subject and there are plenty of areas that aren’t

Power Supplies

Voltage Regulator Circuit-The Big List

Over years we have published a handful of voltage regulator circuits in this website – which serve many purposes. In this article I am compiling a quick list of the best voltage regulator circuits that will be useful for all of you. The term “Voltage Regulator” is some what general in nature – it can

FM transmitter circuit
Radio Circuits, Radio Transmitters

FM Transmitter Circuits-The BIG List

Over years we have developed a number of FM transmitter circuits with various aspects. Today I thought of listing all of them here as a single web page, so anyone can easily navigate through all the radio transmitter circuits and its schematic diagrams. For first time readers- What is an FM transmitter An FM transmitter

Types of generators
Basic Electricity

Types of DC Generators

“Energy can be converted from one form to other form” – A generator does the same – it converts mechanical energy to electrical energy. Mechanical energy can be created by using water turbines, steam turbines, internal combustion engines etc. And a generator converts this mechanical energy to electrical energy.  Generators can be broadly classified as

101-Announcements

The History of Electronics-Infographics

Hey guys, Ever thought how the world as we see it now evolved? How came great inventions and discoveries? What were the reasons behind all these great inventions like Diodes, Transistors, IC”s and Micro computers? Here we have developed an Infographics (representing information with the help of graphics) which shows the “History of Electronics”. Note:

Microcontrollers

8051 Special Function Registers and Ports

So you may have guessed something from the name itself – “Special Function Registers” known with an acronym SFR. Well, your guess is right 🙂 Okay! Lets come to the point. There are 21 Special function registers (SFR) in 8051 micro controller and this includes Register A, Register B, Processor Status Word (PSW), PCON etc

Microcontrollers

8051 Addressing modes

In this article, we teach you about 8051 addressing modes. If you’re familiar with 8051 already, you may know an addressing mode is a way to address an operand. If you are new, don’t worry – we’ve covered every aspect about 8051 addressing modes in detail. Let’s begin the journey. Lets begin this article with

Tools and Softwares

8051 Simulator

Through previous articles I tried to explain you basic difference between a microprocessor and microntroller; and I also explained 8051 microcontroller – with its basic architecture, pin diagram, memory organization, clock system, reset circuit etc. I hope they have been very useful for your educational purposes. Now in this article, I am focusing on giving

Microcontrollers

8051 Microcontroller

A micro controller is an integrated circuit or a chip with a processor and other support devices like program memory, data memory, I/O ports, serial communication interface etc integrated together. Unlike a microprocessor (ex: Intel 8085), a microcontroller does not require any external interfacing of support devices. Intel 8051 is the most popular microcontroller ever

Tools and Softwares

PCB Design and Layout Software

Printed Circuit Board (PCB) layouts are designed with help of PCB drawing software’s, commonly known as pcb layout design software. Here we are listing you a collection of free pcb design softwares which are simple, easy to use and available for ready download. PCB design tools fall into many categories based on their development platform, pricing

Microcontrollers

Microprocessor and Microcontroller – The difference

When you start learning about Microprocessors (in most cases you will begin with Intel 8085) and Microcontrollers (usually you will begin with Intel 8051 from the MCS 51 micro controller family), the first question that pops up is “hey… what’s the difference in between”? In this article, I am explaining the basic differences and similarities

Tutorials

PIC Tutorial – 16f877

I hope you all might have gone through the PIC (Peripheral Interface Controller) tutorial developed by our contributor. This post is aimed to organize the tutorial in order (which is created as individual articles), so that all our readers can access the tutorial easily and efficiently. We have arranged the PIC tutorial  in order from

Electronics engineering mini projects
Projects

Electronics Projects – Engineering Mini Projects

CircuitsToday is listing some free engineering mini projects that can be presented and designed by students for their exams. These mini projects are applicable for B-Tech/BE engineering students from various streams like Electronics and Instrumentation (EI), Electronics and Communication (ECE), Electrical Engineering (EEE), diploma and so on. Though the electronic circuits may look complex, they

Free circuit simulator software
Tools and Softwares

Electronic circuit design and simulation software list

List of Circuit design / analysis / simulation software Hello friends, I hope you all got benefited with our previous article on Electronic circuit drawing softwares . Today we are bringing you a great collection of circuit simulators – which are at the same time can be used for circuit drawing, circuit design and analysis

Tools and Softwares

Electronics circuit drawing softwares

Electronics circuit diagram/schematic drawing softwares list This article is an attempt to list out all available softwares for circuit drawing. I have taken into consideration many criteria before making this list. You know there are free softwares, paid softwares, sharewares and there will be variations in quality of softwares, user friendliness, complexities etc. I have

Education & Training

Gate 2012 Application-You have got one more day!

Hello friends, You have one more day to apply for GATE 2012. The applications has to be submitted on or before October 21 (at 23.00 hours). If you have not applied yet, rush! You can apply online by following this link:- Apply for GATE 2012 Now lets talk a little about GATE for those who dont

Simple Electronic Projects
Projects

20+ Simple Electronics Projects and Circuits for Beginners

Simple Electronics Projects for Beginners This article is a collection of simple electronics circuits we have published over a span of 3 years, which can be used as simple electronics projects for students, beginners, engineering students and other hobbyists. The following circuits listed below can also be used for your mini project needs. But we

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