Proposal wireless remote 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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its cool