Electrofriends

November, 2008

Digital IC Tester

by Ranjith | November 20th, 2008.
Digital IC Tester

Unlike the IC testers available in the market today which are usually expensive, this IC tester is affordable and user-friendly. This IC tester is constructed using 8951 microcontroller along with a keyboard and a display unit. It can test digital ICs having a maximum of 24 pins.

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Mouse programming in C

by Ranjith | November 20th, 2008.

Mouse can be used in text mode as well as in graphics mode. Usually it is used in graphics mode. Hence we must first change over to graphics mode. In our program the function initgraph() is responsible for switching the mode from text to graphics .DETECT is a macro defined in ‘graphics.h’. It requests initgraph() [...]

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Turbo C graphics programming

by Ranjith | November 20th, 2008.
Output of above program

To start with graphics programming, Turbo C is a good choice. Even though DOS has its own limitations,  it is having a large number of  useful functions and is easy to program. To implement graphics algorithms,  To give graphical display of statistics, To view signals from any source, we can use C graphics. Here  is  [...]

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Sudoku Solver using C++

by Ranjith | November 20th, 2008.
Figure: 1- Sudoku Problem

You have seen it in the news papers, you have seen it in the magazines or in the web sites, you might have sat hours ‘n hours to solve it. Yes, it is the king of all number puzzles, it is “SUDOKU”. We bring to you the ultimate solution for all your struggles, The SUDOKU [...]

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Shuffle game using C++

by Ranjith | November 20th, 2008.
Shuffle game using C++

If you think playing a game as this is a child’s play, try a hand on this and think again. Its all about how you plan on making your next move. All the best, have fun. Here is a simple game developed in C graphics which is called ‘The Shuffle Game’. We believe u have [...]

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Device Switching Using PC’s Parallel Port

by Ranjith | November 20th, 2008.
FIg 1. Block Diagram

Imagine the convenience, if we could control different devices at home/industry by using a single PC. Our project aims at the same and could be used to control the printer power, loads & other household electrical appliances. The circuit comprises decoder, inverter, latch & relay driver sections. To control these equipments we are using PC’s [...]

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Lexical Analyzer

by Ranjith | November 20th, 2008.
fig a. Process of lexical analyzer

Lexical analyzer converts stream of input characters into a stream of tokens. The different tokens that our lexical analyzer identifies are as follows: KEYWORDS: int, char, float, double, if, for, while, else, switch, struct, printf, scanf, case, break, return, typedef, void IDENTIFIERS: main, fopen, getch etc NUMBERS: positive and negative integers, positive and negative floating [...]

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Doctor’s Diary using JSP Technology

by Ranjith | November 20th, 2008.
Figure 1: Main page of Doctor's Diary.

This is the model software from electrofriends.com. We successfully implemented the need and necessary concepts of a doctor, for his stand alone clinic. We hope this software package will definitely help the students, to get an idea about their academic projects. For a doctor, it is absolutely difficult to keep all the details of his [...]

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Induction furnace control system

by Ranjith | November 20th, 2008.
Controlling relay from parallel port

This project is an attempted step towards resolving the manual problems in controlling Induction Furnace and provides control for it, using Artificial Intelligence at a very small scale. The project deals with a simple aspect of giving information about the Induction Furnace and their control. Initially it provided a system release manual power as much [...]

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SQL Books

by Ranjith | November 20th, 2008.

Teach Yourself SQL in 21 Days, Second Edition Free SQL Book Oracle/SQL Tutorial An Introduction to SQL Injection Attacks for Oracle Developers The Definitive Guide to Scaling Out SQL Server 2000 Introduction to Structured Query Language SQL Tutorials by intermedia SQL practice – Basic Queries SQL Tutorials by sqlzoo SQL Tutorials by w3schools SQL Tutorials [...]

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