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MESSENGER DEVELOPMENT WITHOUT INTERNET

USING ZIGBEE.

AIM:

The main aim of the project is to develop a messenger system by which one can

communicate with more than one, wirelessly using Zigbee technology.

PURPOSE:

The purpose of the project is to implement a messenger where we can chat with other use

without internet facility.

BLOCK DIAGRAM:

PERSON 1:

2.4 RF waves

Radio frequency (RF) is a rate of oscillation in the range of about 3 kHzto 300 GHz, which

corresponds to the frequency ofradio waves, and the alternating currents which carry radio signals.

RF usually refers to electrical rather than mechanical oscillations, although mechanical RF systems

do exist. Although radio frequency is a rate of oscillation, the term "radio frequency" or its acronym

"RF" are also used as a synonym for radio i.e. to describe the use ofwireless communication, as

opposed to communication via electric wire

Plot No:#304, D V Arcade, Opp. Agrawala Sweets, Street No: 10, Himayatnagar, Hyderabad - 500

029.

www.sahasratechnology.weebly.com

http://en.wikipedia.org/wiki/KHzhttp://en.wikipedia.org/wiki/KHzhttp://en.wikipedia.org/wiki/Gigahertzhttp://en.wikipedia.org/wiki/Frequencyhttp://en.wikipedia.org/wiki/Radio_waveshttp://en.wikipedia.org/wiki/Alternating_currenthttp://en.wikipedia.org/wiki/Radiohttp://en.wikipedia.org/wiki/Wirelesshttp://en.wikipedia.org/wiki/KHzhttp://en.wikipedia.org/wiki/Gigahertzhttp://en.wikipedia.org/wiki/Frequencyhttp://en.wikipedia.org/wiki/Radio_waveshttp://en.wikipedia.org/wiki/Alternating_currenthttp://en.wikipedia.org/wiki/Radiohttp://en.wikipedia.org/wiki/Wireless

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PERSON 2:

Plot No:#304, D V Arcade, Opp. Agrawala Sweets, Street No: 10, Himayatnagar, Hyderabad - 500

029.

www.sahasratechnology.weebly.com

MICRO

CONTROLLER

PS2

CABLE

ZIGBEE

TRANSCEI

VER

Power supply

K

EY

P

A

D

LCD DISPLAY

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DESCRIPTION:

In this project we are implementing a chatting system with out using internet in our

project. Here we are using zigbee technology for communication between two systems. In this

project there are two sections, in first we are having a key board which is connected to the

micro controller using PS2 cable and if a message is sent by this system it should be received

to other system by using zigbee transceiver.

The other system is also connected in the similar manner. In this second section the

zigbee transceiver will receive the signal and sent to the micro controller it will send to the

second system by using PS2 cable with key board.

Plot No:#304, D V Arcade, Opp. Agrawala Sweets, Street No: 10, Himayatnagar, Hyderabad - 500

029.

www.sahasratechnology.weebly.com

MICRO

CONTROLLER

KEY

PAD

ZIGBEE

TRANSCEI

VER

Powersupply

PS2

CABL

E

LCD DISPLAY

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TECHNOLOGY:

Zigbee is new wireless technology guided by IEEE 802.15.4 Personal Area Network

standard. It is primarily designed for the wide range controlling applications and to replace the

existing non-standard technologies. It currently operates in 868 MHz band at a data rate of

20Kbps in Europe, 914MHz band at 40kbps in USA, and the 2.4GHz ISM bands Worldwide

at a maximum data-rate of 250kbps. It is used to verify whether users truncation is possible

or not. One of the main advantage of this ZIGBEE communication is that it provides a noise

free communication, the amount of noise added in this type of communication is very less

compared to the other wireless communications.

SOFTWARE USED:

1. Embedded C

2. Keil IDE

3. Uc-Flash

HARDWARE USED:

1. Micro Controllers(AT89S52)

2. Power Supply

3. ZIGBEE Transceivers

4. LCD

5. PS2 CABLE

6. Keypad(PS2)

RESULT:

Plot No:#304, D V Arcade, Opp. Agrawala Sweets, Street No: 10, Himayatnagar, Hyderabad - 500

029.

www.sahasratechnology.weebly.com

7/29/2019 127.Embedded Based With Out Zigbee

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According to this project we can implement a data communication system in which

ZIGBEE technology is used by which one can communicate with more than one, wirelessly

Plot No:#304, D V Arcade, Opp. Agrawala Sweets, Street No: 10, Himayatnagar, Hyderabad - 500

029.

www.sahasratechnology.weebly.com