[ REPORT ] gsm NOTICE BOARD

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Abstract
Notice board is primary thing in any institution or organization or public utility places like bus stops, railway stations or parks. But sending various notices day to day is a tedious process. This paper deals with advanced notice board. It presents an SMS based notice board incorporating the widely used GSM to facilitate the communication of displaying message on notice board via user’s mobile phone. Itsoperation is based on microcontroller ATMEGA32 programmed in assembly language. A SIM300 GSM modem with a SIM card is interfaced to the ports of the microcontroller with the help of AT commands. When the user sends a SMS via a registered number from his mobile phone, it is received by SIM300 GSM modem at the receiver’s end. SIM300 is duly interfaced through alevel shifter IC MAX32 to the microcontroller. The messaged is thusfetched into the microcontroller. It is further displayed on an electronic notice board which equipped with LCD display interfaced tomicroprocessor powered by a regulated power supply from mains supply of 230 volts ac. This project is our experiment on real time noticing. Now-a-days advertisement is going digital. The big shops and the shopping centers use digital displays now. Also, in trains and buses the information like platform number, ticket information isdisplayed in digital boards. People are now adapted to the idea of the world at its finger-tips. The use mobile phones have increased drastically over years. Control and communication has become important in all the parts of the world.
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[ REPORT ] Display Message on Notice Board using GSM

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Arduino interesting projects:   
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Rf based Projects with report
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Display Message on Notice Board using GSM

Abstract

Notice board is primary thing in any institution or organization or
public utility places like bus stops, railway stations or parks. But
sending various notices day to day is a tedious process. This paper
deals with advanced notice board.
It presents an SMS based notice board incorporating the widely used
GSM to facilitate the communication of displaying message on notice
board via user’s mobile phone. Its operation is based on
microcontroller ATMEGA32 programmed in assembly language. A
SIM300 GSM modem with a SIM card is interfaced to the ports of the
microcontroller with the help of AT commands.
When the user sends a SMS via a registered number from his mobile
phone, it is received by SIM300 GSM modem at the receiver’s end.
SIM300 is duly interfaced through a level shifter IC MAX32 to the
microcontroller. The messaged is thus fetched into the microcontroller.
It is further displayed on an electronic notice board which equipped
with LCD display interfaced to microprocessor powered by a regulated
power supply from mains supply of 230 volts ac.
This project is our experiment on real time noticing.

RF based electronics notice board,sms tranmission

Some Importantant links below with reports.just view the lik below.just search any project on our search box
Arduino interesting projects:   
Arduino 30 simple and good projects 
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Rf based Projects with report
engineering study notes 
GSM GPS based projects with report
Bluetooth based projects with reports

 RF based notice board

Introduction

Single or Multi electronic notice boards with operating distance up to 1000meters using RS485 protocol

Notice boards play a vital role mostly in educational institutions. The events, occasions or any news, which has to be passed to the students, will be written on the notice boards present in every floor in the colleges or schools. The present system is like, a person will be told the news and he has to update this news on all the notice boards present in the college or school. This will be seen mostly during the examination seasons.

The time table or the schedule of the exams has to be given to the students. This will be done by writing the details on the notice boards. But this process consumes a lot time to update the news on all the notice boards and there may be chances that the person responsible may commit some mistakes or he may be absent sometimes. So, this may create disturbances and the entire schedule may be disturbed. To avoid all these, electronic Notice Board have been designed which completely eliminates the manual work.
   Here we are using RS48.  It is an  alternative for RS-232 for long distance. RS-232 only up  to 15m. but in MAX 485 up to 1500m limit. in addition we connect up to 32 devices.                           If your control system needs to receiving and sending data in the same time you must use full duplex transmission mode. It is possible (and in real world this is the most popular case) that control system first sends request message to ROV (e.g. get temperature) and than waits for the response. In this scenario, there is no possibility that control system and ROV sends data in the same time, so half duplex communication is sufficient.  For full duplex communication you need 4 wires, for half duplex only 2 wires. MAX485 is providing half duplex mode. If you need to use full duplex you must use 2 units (or full duplex chip).