ISSN 2394-3777 (Print) ISSN 2394-3785 (Online) Available online at www.ijartet.com International Journal of Advanced Research Trends in Engineering and Technology (IJARTET) Vol. 6, Issue 4, April 2019 All Rights Reserved © 2019 IJARTET 7 GSM Based Wireless Notice Board Using ARDUINO M.Abila Mary 1 , B.Pavithra 2 , R.Sangeetha 3 , Prof.T.C.Subbu Lakshmi 4 12,3 abilamary2612@gmail.com, pavithrarjpm@gmail.com, sangeeg568@gmail.com,Final Year, B.Tech(I.T.), Department of Information Technology, Francis Xavier Engineering College, Tirunelveli, India. 1 subbulakshmi.tc@francisxavier.ac.in, Asso.Professor, Department of Information Technology, Francis Xavier Engineering College, Tirunelveli, India. I. INTRODUCTION 1.1. Overview The GSM based notice board is aimed at the colleges and universities for displaying day-to-day information continuously or at regular intervals during the working hours. Being GSM-based system, it offers flexibility to display flash news or announcements faster than the programmable system. GSM-based campus display system can also be used at other public places like schools, hospitals, railway stations etc., A GSM receiver and a display toolkit which can be programmed from an authorized mobile phone. It receives the SMS, and displays the desired information after necessary code conversion. It can serve as a notice board and display the important notices instantaneously thus avoiding the latency. Being wireless, the GSM based is easy to expand and allows the user to add more display units at any time and at any location in the campus depending on the requirement of the institute. 1.2. Objective  To develop a GSM based notice board whose contents can be updated through an SMS which realized through an embedded system with microcontroller.  To design a project simple, easy to install, user friendly system, which may receive and display notice in a very specific manner.  SMS based notice board incorporating the widely used GSM to facilitate the communication of displaying message on notice board via user’s mobile phone.  SIM 800 GSM modem with a SIM card is interfaced to the ports of the Arduino with the help of AT commands.  SIM 800 is duly interfaced through a level shifter IC MAX232 to the Arduino.  The messaged is thus fetched into the Arduino. 1.3. Information Transfer A coordinated sequence of user and telecommunication system actions that causes information present at a source user to become present at a destination user. An information- transfer transaction usually consists of three consecutive phases called the access phase, the information-transfer phase, and the disengagement phase. 1.4. Broadcast A term to describe communication where a piece of information is sent or transmitted from one point to all other points. One of the most common examples is broadcast through a cellular network service. This serves multiple end users at different locations in a simulcast fashion. Practically every cellular system has some kind of broadcast mechanism. This can be used directly for distributing information to multiple mobiles, the most important use of broadcast information is to set up channels for one to one communication between the mobile Trans-receiver and the base station. This is called paging. The details of the process of paging vary somewhat from network to network, but normally we know a limited number of cells where the phone is located (this group of cells is called a location area in the GSM system). This project aims at integrating the expansiveness of a wireless cellular network and the ease of information transfer through the SMS with the coverage of campus display boards 1.5. Components Overview This system uses the following components.