Ham Radio India - VU2.IN

Ham Radio India. Radio Electronics. Disaster Management. Emergency Communication - Amateur Radio

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16x2 LCD Display Pin-Outs

LCD Pin Out

LCD (Liquid Crystal Display) screen is an electronic display module and find a wide range of applications. A 16x2 LCD display is very basic module and is very commonly used in various devices and circuits. These modules are preferred over seven segments and other multi segment LEDs. The reasons being: LCDs are economical; easily 16x2 LCD Pin Configurationprogrammable; have no limitation of displaying special & even custom characters (unlike in seven segments), animations and so on.

A 16x2 LCD means it can display 16 characters per line and there are 2 such lines. In this LCD each character is displayed in 5x7 pixel matrix. This LCD has two registers, namely, Command and Data.

The command register stores the command instructions given to the LCD. A command is an instruction given to LCD to do a predefined task like initializing it, clearing its screen, setting the cursor position, controlling display etc. The data register stores the data to be displayed on the LCD. The data is the ASCII value of the character to be displayed on the LCD.

Contributed by VU3PLP

 

Telegrams - No more!

End of Telegram Service in India

Modern technology marvels in form of SmartPhones, Emails, SMSs have rung in death bells for telegraphy service in India as the BSNL in an official circular have decided to relegate Telegraphy services to annals of history. India is not the only country to discontinue the service of telegraphy. Nepal Telecom Telegram closed its telegram service on 1 January 2009, while in Australia, Australia Post closed its telegram service on 7 March 2011.

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QRZ India Hams Search Engine

QRZ Search for India HAMS

Dear friends,

My own attempt at qrz for Indian ham radio operators is live on http://qrz.vu2.in Only Indian callsigns for now and in the process to continously improve as I would get time in days ahead on weekends.

Dec 21 Update: VUHAMS QRZ Search Engine is holding up good and the inital part of setting up the frontend and backend database has been tested few times and it is working!!!! We have about 5000 VUHAMS Callsigns stored and should you find that your callsign is not showing up, you would be redirected to a form to enter your details.

Request all OM/YL to use it, also should you want to leave your signature anywhere ... you may use http://qrz.vu2.in/db/<YOUR CALLSIGN> to share the details, For example for myself I would use http://qrz.vu2.in/db/VU2GTI as the link to give details.

Look forward to your participation and cooperation - and your feedback too!!!

73
VU2GTI

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First edition of Practical Wireless on Web

First edition of Practical Wireless on Web

A PDF of the first issue of Practical Wireless (PW), published over 78 years ago, is available on the web. Link to the first edition now as a  document in pdf format is available in the resources section at the end of this article.

Practical Wireless is a British radio and electronics magazine, now published monthly by PW Publishing of Broadstone, Dorset. The current editor (2009) is Rob Mannion.

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Amateur Radio Quiz

What does CW stand for, in context of radio communication
 

QRZ Search

Please note: Search Ham Radio Operators callsign database. If your callsign doesn't show up, please fill up the form to add your callsign in our callsign database.

Basic Electronics Quiz

Public quizzes

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Alexa Rank


Newsflash

WARD - World Amateur Radio Day April 18th

April 18th is the 108th day of the year (109th in leap years). This day marks the founding day of International Amateur Radio Union (IARU), thus the official birthday since 1925 has been celebrated as World Amateur Radio Day.  

By all means World Amateur Radio Day remains an individual thing, there is absolutely no compulsion or fancy events to commemorate the day organized on a global or national scale. This being a special day though each HAM is encouraged to promote the hobby, increase awareness, get on air and spread the good word.

Amateur Radio has come a long way over the years. The first spark-gap devices served as transmitters for first three decades of the radio (1887 - 1916) and today we have moved on to digital signals, SDRs integration with computers has shown how HAM Radio remains in the forefront of evolving technology.