Wireless Electronic Notice Board using GSM

Abstract

Notice board is primary thing in any institution or organization or public utility places like highway, bus stops, railway stations or parks. But sending various notices day to day is a tedious process. This project 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 noticeboard via user’s mobile phone. Its operation is based on microcontroller Arduino Uno R3 programmed in C language. A SIM900 GSM modem with a SIM card is interfaced to the ports of the Arduino with the help of AT commands. When the user sends a SMS via a registered number from his mobile phone, it is received by SIM900 GSM modem at the receiver’s end. SIM900 is duly interfaced to the Arduino. The messaged is thus fetched into the Arduino. It is further displayed on an electronic notice board which equipped with LCD display interfaced to Arduino powered by USB interface or External Power Supply. This project is our experiment on real time noticing.