A PROJECT ON WIRELESS DIGITAL NOTICE BOARD USING WIFI

Veluru Sriveni,

R Swathi Priya,

Boya Revathi,

Madireddy Ruchitha,

T Vijaya Kumar

1234

B.Tech Students,

Associate Professor

Dept of ECE

Dr.K.V.Subbareddy Institute of Technology, Kurnool

Abstract: Wireless digital notice board display

to gather the information on display of LED

matrix. This project can be also used in

institutions or organization etc. but, sending

notices day to day is a heavy process. This

project deals with advanced notice board. In Our

proposed system the user will enable to transmit

notices wirelessly on a notice board using

Controller Bluetooth Module with smart phone

and users get auto notification using cloud. Its

operation is based on microcontroller arduino

When the user sends notice through smart phone

simultaneously that message will get display on

the LED display board and also through the

cloud other users get auto notification on their

smart phone.

I. INTRODUCTION

Notice Board is common information sharing

medium in any institution or any public place

like bus stations, railway stations and

amusement parks. But putting on various notices

day in and day out is time consuming.

Additional man power is required to take care of

this notice display board. This paper deals with

an advanced electronic wireless notice board.

Electronic notice board is a common device that

is used to display information. The information

or messages are displayed using LCD’s and

Graphical LCD’s. The wireless system for

LCD’s is a method using Radio Frequency as

transmission medium. The system consists of

two modules: transmitter and receiver. The

transmitter module is used by a user to place a

message through an input module PC/Mobile.

The information is then transmitted using

bluetooth technology to the receiver. It then will

be decoded and displayed on electronic notice

board.

In this world Mobile Phones and the related

technologies are becoming more and more

prevalent. Various technical arenas in the field

of Telecommunication and Embedded

Systems are becoming omnipresent in the

people. The use of cell phones has rapidly

increased over the last decade and a half

Upgradation in networking technologies has

encouraged the development and growth of

very dense networks. Notice boards are one of

the widely used ones ranging from primary

schools to major organizations to convey

messages at large. A lot of paper is been used

and which is later wasted by the organizations.

This in turn leads to a lot of deforestation thus

leading to global warming. Small innovative

steps in making use of technology for regular

purposes would have an adverse effect on the

environment issues which we are presently

concerned about. The whole process can be

described from the transmitter and receiver

section. The Bluetooth module receives a

message from the authorized mobile phone

and the message is extracted by the

microcontroller from the Bluetooth module

and is displayed on the matrix display board.

Serial to parallel communication is used for

the entire process from Bluetooth module to

Microcontroller and from microcontroller to

the matrix display. And for the

acknowledgement LCD display is used. The

proposed system “Bluetooth based Wireless

Notice Board using Arduino” is cheap, quick

reliable and secured for any organization that

requires to circulate notice regularly and

Journal of Engineering Sciences Vol 14 Issue 05,2023

ISSN:0377-9254 jespublication.com Page 68

reduce physical efforts. We are using

Bluetooth technology. We can send notice

from any location. This proposed system in

this project has many upcoming applications

in educational institutions and organizations,

crime prevention, traffic management,

railways, advertisements etc. Been user

friendly, long range and faster means of

conveying information are major bolsters for

this application. By using this proposed

methodology, we can enhance the security

system and also make awareness of the

emergency situations and avoid many dangers.

II.LITERATURE REVIEW

[1] Ramya R, Bavithra N, Priyanka M,

“Wireless Enotice board using Bluetooth

technology” This paper explains E-notice board

with the help of Bluetooth technology. This

document deals with an innovative rather an

interesting manner of intimating the message to

the people using a wireless electronic display

board which is synchronized using the Bluetooth

technology. This will help us in passing any

message almost immediately without any delay

just by sending a SMS which is better and more

reliable than the old traditional way of passing

the message on notice board. This proposed

technology can be used in colleges many public

places, malls or big buildings to enhance the

security system and also make awareness of the

emergency situations and avoid many dangers.

[2] Dharmendra Kumar Sharma, Vineet Tiwari,

“Small and medium range wireless electronic

noticeboard using Bluetooth and ZigBee” this

paper introduces Notice Board using Bluetooth

and ZigBee technology. When information

exchange occurs between people via a network,

then authentication and security of data have

more priority. This paper introduces a low cost,

handheld, wireless electronic notice board by

using Atmel’s ATmega32 microcontroller and

different wireless technologies (Bluetooth and

ZigBee) and their performance analysis based on

the parameter such as range, BER (bit error

rate), RSSI (Received signal strength indicator),

signal attenuation and power consumption. The

notice board receives serial data from wireless

module receiver and displays it on the graphical

liquid crystal display. We have realized a

common communication receiver hardware for

notice board having compatibility with both

wireless modules i.e., Bluetooth and ZigBee. We

used KS0108 based 128x64 graphical LCD as

display element. [3] M. Abila Mary, B. Pavithra,

R. Sangeetha, Prof.T.C. Subbu Lakshmi, “GSM

based wireless noticeboard using Arduino” In

this paper built a Noticeboard using GSM

technology. The GSM based notice board is

aimed at the colleges and universities for

displaying day-to-day information continuously

or at regular intervals during the working hours.

Being GSM-based system, it offers flexibility to

display flash news or announcements faster than

the programmable system. • To develop a GSM

based notice board whose contents can be

updated through an SMS which realized through

an embedded system with microcontroller. • To

design a project simple, easy to install, user

friendly system, which may receive and display

notice in a very specific manner. • SMS based

notice board incorporating the widely used GSM

to facilitate the communication of displaying

message on notice board via user’s mobile

phone. • SIM 800 GSM modem with a SIM card

is interfaced to the ports of the Arduino with the

help of AT commands. [4] Pallavi M. Banait,

Nikita P. Bakale, Mayuri S. Dhakulkar, Bhushan

S. Rakhonde, “Cost effective Android based

wireless notice board” IJETER International

Journal of Emerging Technologies in

Engineering Research. In the day-to-day life,

smart phone is gaining a wide range of

importance in its usage and is portable. Thus, an

android smart phone can be for the purpose. An

android application is installed in the user’s

smart phone which permits the transmission. At

receiver end, a low-cost microcontroller board

(Arduino Uno) is programmed to receive and

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display messages in any of the above

communication mode. Using the developed

system, two different applications for displaying

messages on a remote digital notice board and

wireless person calling has been implemented.

The developed system will therefore aim in

wirelessly sharing the information with intended

users and also helps in saving the time and the

cost for paper and printing hardware.

III.DESIGN OF HARDWARE

This chapter briefly explains about the

Hardware. It discuss the circuit diagram of each

module in detail.

ARDUINO UNO

The Arduino Uno is a microcontroller board

based on the ATmega328 (datasheet). It has 14

digital input/output pins (of which 6 can be used as

PWM outputs), 6 analog inputs, a 16 MHz ceramic

resonator, a USB connection, a power jack, an ICSP

header, and a reset button. It contains everything

needed to support the microcontroller; simply

connect it to a computer with a USB cable or power it

with a AC-to-DC adapter or battery to get started.

The Uno differs from all preceding boards in

that it does not use the FTDI USB-to-serial driver

chip. Instead, it features the Atmega16U2

(Atmega8U2 up to version R2) programmed as a

USB-to-serial converter. Uno board has a resistor

pulling the 8U2 HWB line to ground, making it

easier to put into DFU mode. Arduino board has the

following new features:

• 1.0 pin out: added SDA and SCL pins that

are near to the AREF pin and two other new pins

placed near to the RESET pin, the IOREF that allow

the shields to adapt to the voltage provided from the

board. In future, shields will be compatible both with

the board that use the AVR, which operate with 5V

and with the Arduino Due that operate with 3.3V.

The second one is a not connected pin, that is

reserved for future purposes.

• Stronger RESET circuit.

• Atmega 16U2 replace the 8U2.

"Uno" means one in Italian and is named to mark the

upcoming release of Arduino 1.0. The Uno and

version 1.0 will be the reference versions of Arduino,

moving forward. The Uno is the latest in a series of

USB Arduino boards, and the reference model for the

Arduino platform; for a comparison with previous

versions, see the index of Arduino boards.

Fig: ARDUINO UNO

POWER SUPPLY:

The power supplies are designed to convert

high voltage AC mains electricity to a suitable low

voltage supply for electronic circuits and other devices. A

power supply can by broken down into a series of blocks,

each of which performs a particular function. A d.c

power supply which maintains the output voltage

constant irrespective of a.c mains fluctuations or load

variations is known as “Regulated D.C Power Supply”.

Fig: Block Diagram of Power Supply

LCD DISPLAY

A model described here is for its low price

and great possibilities most frequently used in

practice. It is based on the HD44780 microcontroller

(Hitachi) and can display messages in two lines with

16 characters each. It displays all the alphabets,

Greek letters, punctuation marks, mathematical

symbols etc. In addition, it is possible to display

symbols that user makes up on its own. Automatic

shifting message on display (shift left and right),

appearance of the pointer, backlight etc. are

considered as useful characteristics.

Fig: LCD

BUZZER

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Digital systems and microcontroller pins

lack sufficient current to drive the circuits like relays,

buzzer circuits etc. While these circuits require

around 10milli amps to be operated, the

microcontroller’s pin can provide a maximum of 1-

2milli amps current. For this reason, a driver such as

a power transistor is placed in between the

microcontroller and the buzzer circuit.

LED MATRIX DISPALY

LED-based signage and matrix displays are

bringing new dimensions of versatility and eye-

pleasing visual effects to a growing number of

outdoor and indoor applications. Recent

advances in LED technology have even made it

difficult to distinguish still images on their high-

quality displays from traditional printed or

painted billboards. In this tutorial, Texas

Instruments takes a detailed look at the essential

technical principles of LED display systems and

the engineering considerations required to

design them using arrays of discrete LED lamps.

Figure :Comparing three LED driver circuits

IV.PROJECT DESCRIPTION

This project proposes the design of dot matrix

led display using Micro Conroller.

BLOCK DIAGRAM:

Fig block diagram

SOFTWARE REQUIREMENTS:

 arduino

 Embedded c language

HARDWARE REQUIREMENTS:

 Transformer

 Diodes

 Capacitors

 Resistors

 LEDS

 Transistor

 PC Key Board

 Bluetooth Module

WORKING:

In our project we use power supply, Arduino

UNO, LED module, Bluetooth HC-05 and

mobile application. After uploading the program

in Arduino UNO, we will give them external

power supply. Due to that all functions of

equipment’s are on. At that time, we will pass

the notice/SMS which we want using mobile.

Then this notice/SMS will receive by Bluetooth.

And by using Arduino this notice/SMS will

display on digital notice board.

APPLICATIONS

1. In Industry 2. In Offices 3. In college 4. In

Hotel

FUTURE SCOPE

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1. This proposed system has many upcoming

applications in educational institutions and

organizations, crime prevention, traffic

management, railways, advertisements etc.

V.CONCLUSION

As the technology is advancing every day the

display board systems are moving from Normal

handwriting display to digital display. Further to

Wireless display units. This project develops a

wireless notice board system with Bluetooth

connected to it, which displays the desired

message of the user through an SMS in a most

populated or crowded places. Here by

introducing the concept of wireless technology

in the Field of the communication. We can make

our communication more efficient and faster,

with greater efficiency. We can display the

messages and with less errors and maintenance.

REFERENCES

[1] Prachee U. Ketkar, Kunal P. Tayade, Akash

P. Kulkarni, Rajkishor M. Tugnayat: GSM

Mobile Phone Based LED Scrolling Message

Display System, International Journal of

Scientific Engineering and Technology Volume

2 Issue 3; PP : 149-155

[2] Foram Kamdar, Anubbhav Malhotra and

Pritish Mahadik : Display Message on Notice

Board using GSM, ISSN 2231-1297, Volume 3,

Number 7 (2013); pp. 827-832

[3] Darshankumar C. Dalwadi, Ninad Trivedi,

Amit Kasundra : WIRELESS NOTICE

BOARD, National Conference on Recent Trends

in Engineering & Technology

[4] Information on http://www. 8051projects.

Net

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