D.Y Patil College Of Engg & Tech,

Kolhapur

Electronics Engineering DepartmentAcademic Year 2010-11

Wireless Notice Board Using ZigBee Technology

PROJECT IDEA

Paramveer Teli

Mukul Kamble

Sushant Sarnaik

PROJECT GUIDE

Mr. S.M Hirikude

Introduction

Notice Board is primary thing in any institution / organization or public utility places like bus stations, railway stations and parks.

Present Scenario Presently sticking various notices day-to-day is a difficult

process. A separate person is required to take care of this notice display. Also it contains manual errors.

What we are doing in our project We are using wireless technology for sending and

displaying the notice on Board.

Hardware & Software Requirement

ZigBee Transreceiver Module.

Computer.

UART Cables.

AT mega 16 Microcontroller.

Hyperterminal Programme for editing notice.

LED Display/ LCD Display.

Shift Registers (SIPO)_IC74164, Column Driver_ULN2803

Transmitter Block Diagram

Computer ZigBeeTx

KeyBoard Power Supply

Receiver Block Diagram

ZigBeeRx

MicroControlle

r

Power Supply

Column Driver

Row

LED MATRIX

Inside ZigBee Transreceiver

ZigBee Module Mounting to an RS‐232 Interface Board.

Figure shows ZigBee Configuration @ the transmitter side

Interface with Microcontroller

UART data packet 0x1F as transmitted through the RF module

Representation Of Character on LED Display

ULN2803 ( TRANSISTER SET)

CD4094 (SHIFT REG. SET)

ROWOF

BC557

#7

#1 & CLK Signal

LED Matrix

ZigBee General Characteristics

Two transmission frequencies available 2.4GHz and 915 MHz.

Data rates of 250 kbps @2.4 GHz, 40 kbps @ 915 MHz, and 20 kbps @868 MHz

Optimized for low duty-cycle applications (<0.1%) Low power (battery life multi-month to years)

Multiple topologies: star, peer-to-peer, mesh

Addressing space of up to:- (64 bit IEEE address) 256 devices can be connected.

Optional guaranteed time slot for applications requiring low latency

Fully hand-shaked protocol for transfer reliability

Range: Indoor 30m,Outdoor 90m.

Advantages

Up to 256 displays can be connected.

LED Displays gives better readability

Very low power consumption

Can be operated on batteries

Range of transmission is up to 100m

No data loss in transmission

Facility of alarm on every new notice display

Data will not be lost in power failure condition_EEPROM

Future Developments

In place of LED display, we can install LCD display.

Notice display through SMS.

Notice display using voice recognition method.

Applications

College Departments Notices

Railway Station Platforms

Airports

Traffic Control System

Reference

WineYard Technology

Atmel

Google Search Engine

Digi.com

ZigBee.com

Thank You !!