Presented by

Vineeth Menon

Shyama Pradeep

Geethu Gopakumar

Roshan B.S

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

PC MAX232PIC

16F877

POWER SUPPLY

LCD

LCD

LCD

BLOCK DIAGRAM DESCRIPTIONPOWER 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

THANK YOU