Interfacing DC motor to 8051

admin August 2, 2012 20 Comments
This article shows how to interface a DC motor to an 8051 microcontroller. Interfacing DC motor to 8051 forms an essential part in designing embedded robotic projects. A well designed 8051-DC motor  system  has essentially two parts. Firstly an 8051...
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External Interrupts handling in 8051

jojo August 16, 2012 8 Comments
In this article, I would like to introduce you to the concept of interrupts, how interrupts work, vector address, interrupt priority and how to write an ISR (interrupt service routine). “Interruption” in English language means a deviation from the...
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GPOS versus RTOS for an Embedded System

jojo June 12, 2012 7 Comments
Difference between a GPOS (Normal General Purpose Operating System) and an RTOS (Real  Time Operating System) The whole purpose of this article is to outline the basic differences between a GPOS (General Purpose Operating System) or a Normal OS...
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Embedded Systems Career-An Outline

jojo June 6, 2012 149 Comments
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...
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The story of Fibonacci series

jojo June 12, 2012 9 Comments
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...
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8051 Programming Tutorial-Chapter 1

jojo June 5, 2012 16 Comments
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...
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Interfacing 16×2 LCD with 8051

admin May 22, 2017 32 Comments
LCD display is an inevitable part in almost all embedded projects and this article is about interfacing a 16×2 LCD with 8051 microcontroller. Many guys find it hard to interface LCD module with the 8051 but the fact is...
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8 channel light chaser using 8051

admin June 5, 2012 10 Comments
6 function 8 channel light chaser using 8051. A 6 function 8 channel light chaser using 8051 is shown here. The hardware and software of this circuit are very simple and the light functions gets repeated one after another...
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Blinking LED using 8051

admin June 5, 2012 6 Comments
Blinking 1 LED using 8051 This is the first project regarding 8051 and of course one of the simplest, blinking LED using 8051. The microcontroller used here is AT89S51 In the circuit, push button switch S1, capacitor C3 and...
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4 Books to Learn 8051 Microcontroller

jojo March 25, 2014 10 Comments
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...
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Push pull amplifier

admin May 2, 2012 23 Comments
A push pull amplifier is an amplifier which has an output stage that can drive a current in either direction through through the load. The output stage of a typical push pull amplifier consists of of two identical BJTs...
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Working with MPLAB IDE

Anish June 5, 2012 No Comments
Introduction to MPLAB IDE – What is it and how to install it? The above link takes you to the article about introduction to MPLAB IDE, in case if you have missed it. Having installed MPLAB IDE and one...
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Introduction to MPLAB IDE

Anish June 5, 2012 No Comments
Similar to Atmel’s AVR studio, Microchip MPLAB is a feature rich IDE which integrates compiler tool-chains into the IDE itself and also supports proprietary programming devices and debuggers for the Microchip’s Controller family. Just if you have a microchip...
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4 Great Books to Learn Basic Electronics

jojo June 14, 2016 85 Comments
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....
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