POORNIMA COLLEGE OF ENGINEERING A PRESENTATION

ON

MAJOR PROJECT SEMINAR(STAGE-II)

“GSM BASED E-NOTICE BOARD”

SUBMITTED TO: SUBMITTED BY: Mr. MANISH SINGHAL PAWAN KUMAR PRAJAPAT (EC/09/140)

Mr. S.VENKATESH RAGHUVEER SINGH(EC/09/62)

PANKAJ GUPTA (EC/09/92)

PARAMJEET(EC/09/120)

ECE-FINAL YEAR

CONTENT

1. AIM OF THE PROJECT2. EXISTING SYSTEMS IN MARKET3. INTRDUCTION4. SCOPE OF WORK AND IDEA5. BLOCK DIAGRAM6. CIRCUIT DIAGRAM7. COMPONENT LIST8. THE MICROCONTROLLER9. DISPLAY UNIT(LCD)10. GSM MODULE11. MAX232 IC12. PROGRAMMINGFEASIBILITY13. APPLICATION AND PURPOSE14. FURTHER ENHANCEMENT15. WORK DISTRIBUTION BETWEEN TEAM MEMBERS16. REFRENCES

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AIM OF THE PROJECT

The main aim of the project will be to design a GSM based electronic notice display system which can replace the currently used programmable electronic display.

We can display anything we want through the use of a SMS via a mobile through implementation of a GSM modem in the project.

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EXISTING SYSTEMS IN MARKET

currently programmable electronic display are not wireless and SMS based display of information on notice board.

There remains a particular message in the programming phenomenon of the system.

4

INTRODUCTION

The message containing the information would be display on the LCD screen via a GSM modem.

The message to be displayed is sent through a SMS from an authorized transmitter.

The microcontroller receives the SMS, validates the sending Mobile Identification Number (MIN) and displays the desired information.

5.

SCOPE OF WORK AND IDEA

In controlling the appliances using wireless communication and Embedded System.

Work on “Embedded System in Communication” is widely do in this project.

The main idea is that a GSM modem receives a SMS and The microcontroller validates the SMS and then displays the message in the LCD display board.

6.

1

BLOCK DIAGRAM

7.

CIRCUIT DIAGRAM

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MICROCONTROLLERLCD DISPLAY

MICROCONTROLLER(AT89C51)RESISTANCE(470,330,1K)CRYSTAL OSCILLATOR(11.0592MHZ)CAPACITORS(33PF,10MF,1MF)MAX 232GSM MODULE(SIMADO GDT11 )SIM CARD POWER ADEPTER(+5V)LCD DISPLAY(4*20 TEXT LCD) RESISTANCE ARRAY(10K)

COMPONENT LIST

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THE MICROCONTROLLER

10

DISPLAY UNIT(LCD)

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GSM MODEM

The GSM modem provides a low cost, long range, wireless communication channel for applications that need connectivity rather than high data rates.

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GSM MODEM AND MICRO-CONTROLLER INTERFACING:

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AT COMMANDS

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CONT…

SOME AT-COMMANDS FOR GSM MODEM:

AT+CMGF = 1 Select the text mode for SMS ;This command configures the GSM modem in text mode.

AT+CMGS =+923005281046 for sending SMS message in text mode along with mobile number to the GSM Modem

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MAX232 IC

The MAX232 is a dual driver/receiver that includes a capacitive voltage generator to supply TIA/EIA-232 voltage levels from a single 5-V supply.

The microcontroller is interfaced with PC or the GSM MODEM via a MAX 232 to convert TTL logic to EIA 232 or RS232 and vice versa.

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Pin description of MAX 232 IC

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INTERNAL ARICHECTURE

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PROGRAMMING FEASIBILITY

Express pcb

Embedded c

Proteus design

Keil compiler 20

APPLICATIONS

Institutional Use: In colleges an Univ. Industrial organizationRailway stationManaging trafficAdvertisementBanking systemEmergency message display in Hospitals

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Faster and more efficient service Reduces human effortsIncreases efficiencyReducing delaysReduces human errors.Digitalization of all campous.Low maintance costIncrease green economy.Save paperLong time display

ADVANTAGES

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DISADVANGE

High installition cost.Dependency on N/W.Limiations on character Lcd display.

DISADVANTAGES

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FURTHER ENHANCEMENTS

Alphanumeric LCD’S have a limitation on size and character display. We can use a LED ARRAYS to remove the limitation.

Robots can be controlled in a similar fashion by sending the commands to the robots. These commands are read by using AT commands and appropriate action is taken.

Farmers can turn on or off pump and drippers via gsm modem. 24

WORK DISRRIBUTION AMONG TEAM MEMBERS

Paramjeet: Drilling, Etching and component mounting, Documentation.

Pawan prajapat: PCB designing on EXPRESS 7PCB or DIPTRESS, simulation on PROTEUS ,soldering.

Pankaj Gupta and Raghuveer Singh: Circuit designing, Coding, Debugging, Component purchasing, Documentation.

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REFRENCES

1. “8051 and embedded system” by Mazidi and Mazidi

2. All datasheets from www.datasheetcatalog.com

3. About AT89s8252 from www.atmel.com

4. And www.triindia.co.in

5. About DS1820 from www.dallas.com

6.www.hbeonlabs.com26

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QUERIES???..

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