WIRELESS MESSAGE COMMUNICATION BETWEEN

TWO COMPUTERS

ABSTRACT

The aim of this project is to develop a system for wireless message

communication between two computers using 2.4 GHz trans-receiver units.

In offices, communication between employees is essential. This project uses a

pair of 2.4 GHz transceiver modules duly powered by 5 volt DC and alarm circuits. They

are used for bidirectional real time chat communication from one PC to another

wirelessly using hyper terminal. While one of the user attempts to initiate a chat,

intimation upon that message is received first by a buzzer sound. There after the other

user can start communicating over the chat mode from his PC. A pair of transceiver

modules are connected to the PCs using a DB9 (De-Sub) connector and through serial

data cord using RS232 protocol communication between the module and the PC. An on-

board dedicated ac to dc power supply is used at both ends to power the units

This concept in future can be further enhanced to link more number of systems

forming a network of dedicated computers such that number of employees can

communicate with each other.

NOTE:

The project works only on operating systems having hyper terminal (E.g. Windows

XP). The computer must have a RS232 serial port.

BLOCK DIAGRAM:

HARDWARE REQUIREMENTS:

2.4GHz transceiver, Resistors, Capacitors, Diodes,

Transformer, Voltage Regulators, 555 timers, Transistor,

Buzzer.