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ABSTRACT

MULTI USER GSM BASED DIGITAL SCROLLING LED DISPLAY WITH PASSWORD AND VOICE
ABSTRACT
The project mainly focuses on transmission of textual data through air interface by the use of GSM through asynchronous serial communication. The data will be processed by the microcontroller it programmed by embedded c language by using KEIL C compiler. The data will be displayed on led display on LED only after entering unique pass key.
Existing System:
How a reliable and an authentic wireless communication could be easily developed between a mobile phone and microcontroller using GSM (Global System for Mobile Communication) MODEM (Modulator-Demodulator). This technical paper explains GSM based e-notice board which can be widely used for multitude of applications including educational sector, traffic control, banks, and public advertisements, stoke exchanges etc.

Proposed System:
In this project we not only send the data, but send the data with pass code also. Which enables us to prevent the unauthorized use of led display board and only the person who have pass code can have access to led board. Important feature of thesis is we are using GSM network by which we can control LED display board by the any part of globe. If we must have the respected pass code. And the pass code is ok then the correct data is to be displayed on LED then playback in Voice IC.





Hardware Requirements:
1.      Power supply
2.      8051 Microcontroller
3.      Gsm Modem
4.      LED Display Board
5.      Voice IC
Software Requirements:
1.      Keil compiler
2.      Embedded C
Advantages:
1.      Only authorized person can use.
2.       Authorized person can send the information from anywhere in the world
3.      This system needs password to display the message
4.      Voice effectively

APPLICATIONS:
1. Can be implemented in shopping malls etc.


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