Theme of project Problems faced in existing system Solution Overview Block diagram of Proposed system Description of block diagram Schematic diagram Schematic diagram overview Various components used Tangible gains Applications Future scope Conclusion

The goal of this project is to develop a system, which uses a display system that displays the moving message.

 This project mainly consists of microcontroller, keypad and LCD. Keypad and display device are interfaced to the microcontroller. The required text to be scrolled in the LCD is prompted from the user.

The user needs to enter the text to be scrolled through keypad. After getting the inputs from the user the microcontroller starts displaying the information in LCD with scrolling effect.

Existing system is not automated and static message is getting displayed

There is a manual effort needed to change the message when ever needed.

A variety of messages can not be stored, and, if desired, the sign can not display the time, day and date.

Consume high electricity.

Power

Supply Micro

Controller

(89c51)Keypad

LCD

Power supply: In this system we are using 5V power supply for microcontroller of Transmitter section as well as receiver section. We use rectifiers for converting the A.C. into D.C and a step down transformer to step down the voltage.

Microcontroller (8051 – 89C51):In this project work the micro-controller is playing a major role. Micro-controllers were originally used as components in complicated process-control systems.

LCD Display Section: This project makes use of Liquid Crystal Display to display / prompt for necessary information.

 Keypad Section:This section consists of a Matrix Keypad. The user needs to enter the text to be scrolled through keypad.

The required operating voltage for Microcontroller 89C51 is 5V.

This regulated 5V is generated by first stepping down the 230V to 9V by the step down transformer.

Development of a Micro controller reduces PCB size and cost of design.

AT89C51 has 4 Kb on chip flash memory which is just sufficient for our application.

The heart of the 89C51 circuitry that generates the clock pulses by which all the internal all internal operations are synchronized.

Keyboards and LCDs are the most widely used input/output devices of the 8051.

A d.c power supply which maintains the output voltage constant irrespective of a.c mains fluctuations or load variations is known as “Regulated D.C Power Supply”.

Liquid crystal displays (LCDs) have materials, which combine the properties of both liquids and crystals.

The heart of the 89C51 circuitry that generates the clock pulses by which all the internal all internal operations are synchronized.

MICROCONTROLLER(8051)

MICROCONTROLLER(AT89C51)

LCD

Low cost

Easy to place

Quick information broadcasting with in the area

Get your messages noticed with a scrolling display.

Programmable moving messages will capture everyone's attention.

The display board makes it easy to input, store and change messages.

No Complicated Programming Procedure..

Railway station/Airport information boards Traffic rules boards Billing systems Banking systems Retail Outlets Showrooms Hotels & Restaurant Offices Factories Theaters Petrol Stations

We can also use any wireless communication for sending the data and receiving the data like RF, IR, ZIGBEE etc.

Operating Modes: Still, Roll, Rotate, Flash, Scroll etcStores & Displays upto 25 message

Languages: English, Tamil, Hindi or Any language.

Variable Width of Alphabet.

Multicolour Moving Message Display.

Programmable Logos and Graphics

Selectable Scrolling Speeds.

Dimensions According to Specification orStandard: 7 X 40, 80, 120, 160 etc. 16 X 40, 80, 120, 160 etc.

Programming Via Wireless Remote Control programming,Standard AT Keyboard , Serial Interface RS-232 or RS- 485, LAN or USB.

The project “LCD BASED MOVING MESSAGE DISPLAY WITH PC DATA ENTRY” has been successfully designed and tested.

It has been developed by integrating features of all the hardware components used. Presence of every module has been reasoned out and placed carefully thus contributing to the best working of the unit.

using highly advanced IC’s and with the help of growing technology the project has been successfully implemented.