Yearly Archives - 2013

16x2 Character LCD

Interfacing LCD with 8051 using Keil C – AT89C51

Liquid Crystal Display (LCD) is very commonly used electronic display module and having a wide range of applications such as calculators, laptops, mobile phones etc. 16x2 character lcd display is very basic module which is commonly used in electronics devices and projects. It can display 2 lines of 16 characters. Each character is displayed using 5x7 or 5x10 pixel matrix. 16x2 Character LCD Interfacing 16x2 LCD with 8051 using Keil C is bit complex because there is no powerful libraries in...

May 10, 2013By 8051 Microcontroller, Tutorials, , , , , 131 CommentsRead more...
relay

Interfacing Relay with 8051 using Keil C – AT89C51

In some electronic applications we need to switch or control high voltages or high currents. In these cases we may use electromagnetic or solid state relays. For example, it can be used to control home appliances using low power electronic circuits. relay An electromagnetic relay is a switch which is used to switch High Voltage or Current using Low power circuits. It magnetically isolates low power circuits from high power circuits. It is activated by energizing a electromagnet, coil wounded on a soft iron core. For...

May 10, 2013By 8051 Microcontroller, Tutorials, , , 14 CommentsRead more...
power_factor

Automatic Power Factor Controller using Microcontroller

The thirst for new sources of energy is unquenchable, but we seldom realize that we are wasting a part of the electrical energy every day due to the lagging power factor in the inductive loads we use. Hence there is an urgent need to avoid this wastage of energy. Before getting into the details of Power factor correction, lets just brush our knowledge about the term "power factor". In simple words power factor basically states how far the energy provided has...

May 9, 2013By Embedded, PIC Microcontroller, Projects, , , 208 CommentsRead more...

Blinking LED using Atmega32 Microcontroller and Atmel Studio

Similar to printing 'Hello World' in C or C++, the very first step towards programming a microcontroller is Blinking a LED with a delay. Atmega32 is a very popular high performance 8 bit AVR Microcontroller. For this example project we need to use two registers DDR and PORT. DDR stands for Data Direction Register, it determines the direction (Input/Output) of each pins on the microcontroller. HIGH at DDR register makes corresponding pin Output while LOW at DDR register makes corresponding...

May 8, 2013By ATMEL AVR, Tutorials, , , , , 18 CommentsRead more...
Paper Battery

Paper Battery – The Future Power Source

Do you feel that the batteries we use now are bulky?? Here comes the solution for the problem of bulkiness. The Paper Battery Paper Battery A paper battery is an energy source which is more flexible and thin. This device is a combination of carbon nanotubes with cellulose based paper.  The paper battery can act in two ways. A battery  as well as a super capacitor. These non-toxic, flexible batteries  can be used as a power source to next generation electronic devices, medical...

May 7, 2013By Power Supply0 CommentsRead more...
MATLAB Logo

Introduction to MATLAB – Beginners Tutorial

MATLAB (Matrix Laboratory) is a forth generation high level programming language and interactive environment for numerical computation developed by MathWorks. It allows data analysis and visualisation, matrix manipulations, function plotting, developing algorithms, creating models and applications, interfacing programs written in other languages such as C, C++, Java and FORTRAN. Applications of MATLAB includes Communication Systems, Embedded Systems, Computational Biology, Digital Signal Processing, Computational Finance, Control Systems, Mechatronics, FPGA Design and Co-design, Test and Measurement, Image and Video Processing and Technical Computing. MATLAB as Calculator In the very...

May 6, 2013By MATLAB, Tutorials, 2 CommentsRead more...
Push Button Switch

Using Push Button Switch with 8051 and Keil C – AT89C51

This tutorial is for beginners in the field of microcontroller. In this case the microcontroller is AT89C51, a reprogrammable derivative of 8051. This purpose of this tutorial is to familiarize with the use of push button switch with the microcontroller. It will be useful whenever a decision is to be made according to the press of a switch. If you are not yet started with 8051 with Keil C please refer this tutorial Blinking Led...

May 6, 2013By 8051 Microcontroller, Electronics, Tutorials, , , , , 33 CommentsRead more...
LM7805 - Pin Diagram

5V Power Supply using 7805 Voltage Regulator with Design

In most of our electronic products or projects we need a power supply for converting mains AC voltage to a regulated DC voltage. For making a power supply designing of each and every component is essential. Here I'm going to discuss the designing of  regulated 5V Power Supply. Let's start with very basic things the choosing of components Component List : Step down transformer Voltage regulator Capacitors Diodes Let's get into detail of rating of the devices : Voltage regulator : As we require a 5V we need LM7805 Voltage Regulator...

May 5, 2013By Electronics, Power Supply17 CommentsRead more...
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