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Bhanu Ranjani
Bhanu Ranjani • Mar 4, 2015

GSM based Electronic Notice Board

Project Abstract / Summary : This project is proposed to design receiver cum display board which can be programmed from mobile phone.The main aim of this project will be to design a SMS driven automatic display board which can replace the currently used programmable electronic display.The message to be displayed is sent through a SMS from the transmitter.The micro controller receives the SMS and displays the desired information.
The electronic displays which are currently used are programmable displays which need to be reprogrammed each time.This makes it inefficient for immediate information transfer and thus the display board loses its importance.The GSM based display board can be used as an add-on to these display boards and make it truly wireless.The display board programs itself with the help of the incoming SMS.Such a system proves to be helpful for immediate information transfer.
The system required for this purpose is nothing but a Micro-controller based SMS box.The main components of the kit includes Micro-controller, GSM modem.These components are integrated with the display board and thus incorporate the wireless features.The GSM modem receives the SMS.The AT commands are serially transferred to the modem through MAX232.In return the modem transmits the stored message through the COM port.The micro-controller validates the SMS and then displays the message in the LCD display board.Various time division multiplexing techniques have been suggested to make the display boards functionally efficient.The micro-controller used in this case is AT89s52.
Actually what happens is, sending sms through phone has become very popular and if we can use this sms to control devices and in displaying data.It is possible to receive or decode the sms globally by using gsm, from any part of world we can control and display data on LCD board.Important feature of thesis is we are using gsm network by which we can control LCD display board from any part of globe and immediate transfer of information takes place.

Why did you choose to work on this project topic : Started off as an instantaneous news display unit,we have improved upon it and tried to take advantage of computing capabilities of micro-controller.looking into current trend of information transfer in campus,it is seen that important notice takes time to be displayed in notice boards.This latency is not expected in most of cases and must be avoided.It is proposed to implement this project at institute level.It is proposed to place display boards in major access points.

Project Category : Electrical / Electronics / Communication
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Institute/College Name: Rajiv Gandhi University Of Knowledge and Technology
City: Nuzvid
State: Andhra Pradesh
Participating Team From: Final Year

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