This document describes a digital notice board project created by students. The notice board allows authorized users to display scrolling messages and notices from a connected PC. It aims to provide a more convenient alternative to traditional paper notice boards. The system uses a MAX232 chip and RS232 connection to interface the PC with the scrolling LED display. Visual Basic .NET is used to develop the software interface, which includes features like message sending, saving, and opening previously saved messages for display. The simple design uses low-cost, easily available components and allows flexible display of notices with less effort compared to physical boards. Potential applications mentioned include schools, hospitals, railway stations, and more.

1. DIGITAL NOTICE BOARD
Sneha sambhaji Patil(FS13CO048)
Ragini Kishor Thorat(FS13CO031)
Sayali chandrashekhar Patil(FS13CO022)
Nidhi pradip Raut(FS13CO029)

2. Introduction
Traditionally notice board is all about sticking information, but sticking
various notices day-to-day is a difficult process.
This digital noticeboard project is designed to develop a PC controlled
scrolling message display for notice board.
This system can be implemented in many important places where
latest information can be displayed.
 For example if implemented in colleges all information for students
can be displayed. It is very convenient for students and college
management to display any information.

3.  For displaying day-to-day information continuously or at regular
intervals during the working hours.
It offers flexibility to display flash news or announcements faster than
the programmable system.
To allow only authorized user to access various function and processed
available in the system.
Provide greater speed & reduced time consumption.
Project Objectives

4. What’s New ?
This is PC controlled display for notice board.
It can be used anywhere like,
School, Colleges, Hospitals, Railway stations, etc.
 Deny access of unauthorised person
 We can also save important messages.
 And later we can open saved messages whenever
required.

5. The operation of the system is very simple.
 Sending Message from any personal computer containing the software
of digital noticeboard.
For sending message through that software and display it on LED
display we need to connect the PC to Rolling display through RS232.
It displays only required input given through our software.
We need to have some common peripherals such as 5 volt power
supply, RS232, Serial Port to USB convertor, Rolling display etc.
How it works?

6. Diagram

7.  Visual Basic .NET (VB.NET) is a multi-paradigm, object oriented
computer programming language implemented on the .NET
Framework.
 Its also possible to run VB.NET programs on Mono, the open source
alternative to .NET not only under Windows, but even Linux or Mac
OSX.
 VB.NET is a modern, general purpose, object oriented &
component oriented language.
 It is easy to learn and structured language which produces efficient
programs.
Software Requirements
VB.NET

8.  The DB9 connector is an analog 9 pin plug of the D-Subminiature
connector.
 The DB9 Connector is mainly used for serial connections.
 It allows asynchronous transmission of data as provided by
standard RS232.
Hardware Requirements
DB9 Connector

9.  The MAX232 is an IC that converts signals from an RS-232
serial port to signals suitable for use in TTL compatible digital
logic circuits.
 MAX232 is one of the versatile IC to use most of the signal
voltage level conversion problems.
 MAX 232 converts signal from RS232 serial port to signals
suitable for use in TTL compatible digital logic circuit
Hardware Requirements
MAX232-

10.  Gives out well regulated +5V output, output current capability
of 100 mA.
 Circuit protection: Built-in overheating protection shuts down
output when regulator IC gets too hot
 Circuit complexity: Very simple and easy to build
 Circuit performance: Very stable +5V output voltage, reliable
operation
 Components such as diode,capacitor,regulator & transformer
are used.
Hardware Requirements
5 volt Power Supply

11.  A Rolling display, or seven-segment indicator, is a form of
electronic display device for displaying decimal numerals that is an
alternative to the more complex dot matrix displays.
 The seven segments are arranged as a rectangle of two vertical
segments on each side with one horizontal segment on the top,
middle, and bottom.
Hardware Requirements
Rolling display

12.  This is the most crucial part of the product.
 The user, The Dean Students, would be running the application on windows
operating system.
 Hence the product is going to be built using Visual Basic for its User Interface.
User Interface
Login Screen

13. User Interface

14. Tools
Send Button
User Interface

15. Open Button Action
Save Button Action
User Interface

16.  Vb.net is advance language for development
 It is easy to design and manufacture as all the components are
easily available.
 The use of a PC increases its scope of applications and
modifications.
 It has low cost of manufacturing & no need of lengthy wires
 Power Consumption is Less
 We can use various tools to display the message in various ways
 We can also Save important Messages.
 It is flexible as we can display already existing saved messages
Advantages of Digital Noticeboard

17. Applications
 Hospital
 Schools, Colleges & Universities
 Railway Stations and Airport
 Hotels
 Conference Hall

18.  This software can avoid paper work, reduces human effort usage in
definite purpose areas.
 This software is the collaboration of software & hardware through
which most of the complicity reduces
 Only Authorized User Can Display Information.
 Digital notice board system that we have created has been in practical
use in various companies like in construction companies and research
areas,hospitals, railways, Colleges.
Conclusion

19. Thank you….!!!!!!!!