led based notice board

7/30/2019 Led Based Notice Board

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SHRI DADAJI INSTITUTE OF TECHNOLOGY

AND SCIENCE KHANDWA [M.P]

Made By :-

NANDANI TANWAR

AKHILESH MALAKAR

LOKESH BADGUJAR

SHAILESH BHARDWAJ

PALLAV YASH DAVID

JAYESH JAIN

Guided By :-MISS POOJA SHARMA

CO-Guided By :-

Mr. RAMDAS YADAV


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APRESENTATIONON

-:LED BASED NOTICE BOARD :-


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CONTENTS

MOTIVATION.

INTRODUCTION. PRINCIPLE.

BLOCK DIAGRAM.

CIRCUIT DIAGRAM.

POWER SUPPLY. PIN DIAGRAM.

PIN DESCRIPTION.

COMPONENTS.

ADVANTAGES. APPLICATIONS.

FUTURE ENHANCEMENTS.

CONCLUSIONS.

REFERENCES.


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MOTIVATION

For this project our group is motivated by ourHOD MISS POOJA SHARMA MADAM. We havealso seen this project at railway station, shopsetc. And during the discussion about the minor

project with POOJA MAM she motivate us andallot this project i.e. LED BASED NOTICEBOARD .We all are thankful to MISS POOJASHARMA MADAM & Mr. RAMDAS YADAV SIRfor their step by step efforts, co-operation &guidance by which we all are able to completethis project.


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INTRODUCTION

The use of the electronic message board has become morewidespread, replacing the poster and white board incommunicating important messages and notices to thestudents. The Electronic message board also compliments

existing wall LED matrix display board, forcommunicating information and designed specifically toget across messages and information with simplicity andimpact. The text is bold, clear and easily read by studentsor other. it is introduced to communicate enrollment

information, student notices, important messages, andalso includes announcements about upcoming events,reminders about issues concerning the students, noticeabout school organization meetings and a whole lot moreof things that is of public interest.


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ATMEL 89S52 Microcontroller is used.

MAXIM 232 Interfacing IC is used. It has ROM of 8 KB.

It has RAM of 256 BYTES.

LED display board is of 64x16 LED

matrix.

It has total of 1024 LED.

16 shift Registers are used.


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PRINCIPLE

This project can be made by using followingtwo principles they are as fellow:-

1. Co-ordinate drives.

2. Shift register.


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SHIFT REGISTER

In this project we use shift register. Acc. To this

concept in a LED matrix the if any pattern of

data is given to first column and the same

data is cut and paste to left or right but in any

one direction, to the next adjacent

column.Then the data is seems to be moving.


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BLOCK DIAGRAM


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CIRCUIT DIAGRAM


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POWER SUPPLY BLOCK

DIAGRAM


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POWER SUPPLY CIRCUIT

DIAGRAM.


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PIN DIAGRAM


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PIN DESCRIPTION


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COMPONENTS

Transformer. {Step down-230/9V}.

Capacitor. {4.7 F 35V }.

Voltage regulator.{IC 7805}.

Microcontroller.{AT89S52}.

LED.{Red & Green}.

Register.{10K}.Crystal oscillator.{12MHz}.


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Transformer

{Step down-230/9V}

Capacitor

{4.7 F 35V }


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Voltage regulator

IC 7805

Microcontroller

AT89S52


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Register

{10K}

Crystal oscillator{12MHz}


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Bridge RectifrerLED


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ADVANTAGES

Easy to implement. More reliable.

Secured data transfer.

Can be used in places where human beings can not work.

Robust system.

High accuracy because of sensors and microcontroller.

Can store the message in the memory.

It is user friendly.

Bright display in even day light.

High life span of LEDs.

Low power consumption.


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APPLICATIONS

This system can be used in:

Cities, Malls, Theaters.

In Industrial Buildings.

In Trains And Busses.

In Many Institutions For Information Purposes.


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FUTURE ENHANCEMENTS

Can controlled by using computer with serial

cable.

Wireless communication using Transmitter &

receiver.


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CONCLUSIONS

It eliminates the use of a printer.

It is user friendly .

Messages can be sent anytime .


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REFERENCES

http://ecbuddy.blogspot.in/2011/02/at89s52-

pin-diagram.html

http://homepage.ntlworld.com/alanet.marsha

ll1/WS-page/X1CNC/X1CNCpage2.htm

https://www.physics.iitm.ac.in/courses_files/c

ourses/eleclab03_odd/regulated_power_supp

ly.htm
http://ecbuddy.blogspot.in/2011/02/at89s52-pin-diagram.htmlhttp://ecbuddy.blogspot.in/2011/02/at89s52-pin-diagram.htmlhttp://homepage.ntlworld.com/alanet.marshall1/WS-page/X1CNC/X1CNCpage2.htmhttp://homepage.ntlworld.com/alanet.marshall1/WS-page/X1CNC/X1CNCpage2.htmhttps://www.physics.iitm.ac.in/courses_files/courses/eleclab03_odd/regulated_power_supply.htmhttps://www.physics.iitm.ac.in/courses_files/courses/eleclab03_odd/regulated_power_supply.htmhttps://www.physics.iitm.ac.in/courses_files/courses/eleclab03_odd/regulated_power_supply.htmhttps://www.physics.iitm.ac.in/courses_files/courses/eleclab03_odd/regulated_power_supply.htmhttps://www.physics.iitm.ac.in/courses_files/courses/eleclab03_odd/regulated_power_supply.htmhttps://www.physics.iitm.ac.in/courses_files/courses/eleclab03_odd/regulated_power_supply.htmhttp://homepage.ntlworld.com/alanet.marshall1/WS-page/X1CNC/X1CNCpage2.htmhttp://homepage.ntlworld.com/alanet.marshall1/WS-page/X1CNC/X1CNCpage2.htmhttp://homepage.ntlworld.com/alanet.marshall1/WS-page/X1CNC/X1CNCpage2.htmhttp://homepage.ntlworld.com/alanet.marshall1/WS-page/X1CNC/X1CNCpage2.htmhttp://ecbuddy.blogspot.in/2011/02/at89s52-pin-diagram.htmlhttp://ecbuddy.blogspot.in/2011/02/at89s52-pin-diagram.htmlhttp://ecbuddy.blogspot.in/2011/02/at89s52-pin-diagram.htmlhttp://ecbuddy.blogspot.in/2011/02/at89s52-pin-diagram.htmlhttp://ecbuddy.blogspot.in/2011/02/at89s52-pin-diagram.html


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THANKYOU


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ANYQUESTIONS

?????

led based notice board

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