ELECTRONIC NOTICE BOARD WITH MULTIPOINT RECEIVERS Presented by Vineeth Menon Shyama Pradeep Geethu Gopakumar Roshan B.S ELECTRONIC NOTICE BOARD WITH MULTIPOINT RECEIVERS

INTRODUCTION To develop a new display system in school/colleges classrooms, which can be manipulated from administrator’s room Deals about an advanced electronic notice board with several receivers

PROJECT DESCRIPTION This project is designed with microcontroller (PIC),16 x 2 LCD, RS232, Buzzer, and Visual Basic At receiver side,ie, at each classroom a display unit is mounted

BLOCK DIAGRAM POWER SUPPLY LCD PIC 16F877 LCD PC MAX232 LCD

BLOCK DIAGRAM DESCRIPTION POWER SUPPLY The project requires regulated 5v supply LM7805 is used as voltage regulator Provides supply to MAX232,PIC and LCD

MAX 232 RS232 is an asynchronous serial communications protocol, widely used on computers MAX 232 is used as a level shifter Connected to serial port of PC

PERIPHERAL INTERFACE CONTROLLER (PIC) 16F877 is an 8-bit microcontroller 8KB flash memory 3KB data memory RISC machine 35 set of instructions 5 I/O ports

LIQUID CRYSTAL DISPLAY LCD or Liquid Crystal Display is used in this system for display purpose LCD used here is 16 X 2 LCD Each class has its own display

FEATURES It is very reliable and saves time Can store the message in the memory It eliminates the use of a printer It is user friendly

GANTT CHART

ENHANCEMENTS Can be used to cover a wider range by the use of BLUETOOTH Can increase the size of LCD so that it will be more practical Wireless communication using WI-FI Remote controlled LCD display Multiplexing

CONCLUSION It eliminates the use of a printer It is user friendly Messages can be sent anytime

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