phonelogo+234 8146561114 or +2347015391124

DESIGN AND CONSTRUCTION OF AN LED DISPLAY WITH AUDIO OUTPUT (WELCOME)

USER'S INSTRUCTIONS: The project work you are about to view is on "design and construction of an led display with audio output" . Please, sit back and study the below research material carefully. This project topic "design and construction of an led display with audio output" have complete 5(five) Chapters. The complete Project Material/writeup include: Abstract + Introduction + etc + Literature Review + methodology + etc + Conclusion + Recommendation + References/Bibliography.Our aim of providing this "design and construction of an led display with audio output" project research material is to reduce the stress of moving from one school library to another all in the name of searching for "design and construction of an led display with audio output" research materials. We are not encouraging any form of plagiarism. This service is legal because, all institutions permit their students to read previous projects, books, articles or papers while developing their own works.


TITLE PAGE

 

BY

---
--/H2013/01430
DEPARTMENT OF ----
SCHOOL OF ---
INSTITUTE OF ---



APPROVAL PAGE

This is to certify that the research work, "design and construction of an led display with audio output" by ---, Reg. No. --/H2007/01430 submitted in partial fulfillment of the requirement award of a Higher National Diploma on --- has been approved.

By
---                                                     . ---
Supervisor                                                  Head of Department.
Signature……………….                           Signature……………….        

……………………………….
---
External Invigilator



DEDICATION
This project is dedicated to Almighty God for his protection, kindness, strength over my life throughout the period and also to my --- for his financial support and moral care towards me.Also to my mentor --- for her academic advice she often gives to me. May Almighty God shield them from the peril of this world and bless their entire endeavour Amen.



ACKNOWLEDGEMENT

The successful completion of this project work could not have been a reality without the encouragement of my --- and other people. My immensely appreciation goes to my humble and able supervisor mr. --- for his kindness in supervising this project.
My warmest gratitude goes to my parents for their moral, spiritual and financial support throughout my study in this institution.
My appreciation goes to some of my lecturers among whom are Mr. ---, and Dr. ---. I also recognize the support of some of the staff of --- among whom are: The General Manager, Deputy General manager, the internal Auditor Mr. --- and the ---. Finally, my appreciation goes to my elder sister ---, my lovely friends mercy ---, ---, --- and many others who were quite helpful.


PROJECT DESCRIPTION: This work "design and construction of an led display with audio output" research material is a complete and well researched project material strictly for academic purposes, which has been approved by different Lecturers from different higher institutions. We made Preliminary pages, Abstract and Chapter one of "design and construction of an led display with audio output" visible for everyone, then the complete material on "design and construction of an led display with audio output" is to be ordered for. Happy viewing!!!


ABSTRACT

This work is on design, construction and working of a LED Display System. The project covered a fairly comprehensive study of a Dot Matrix Information Display. system made up of light emitting diodes (LEDs), in which one or more LEDs are modulated and encoded with audio information or messages, is disclosed. The system has a LED Display panel with an interface circuit to a computer, an audio signal transmitter, and a receiver. An executive program runs on the computer for the visual display control of characters, decorative pattern or messages on the display panel. The receiver combined with a speaker is located at a distance from the display panel. The receiver is designed to demodulate the optically transmitted audio information and broadcast the messages with the speaker.
The project has been carefully designed such that the Dot Matrix Information Display operates with electrical power from any source alternate or direct current.

 

TABLE OF CONTENTS
COVER PAGE
TITLE PAGE
APPROVAL PAGE
DEDICATION
ACKNOWLEDGEMENT
ABSTRACT
CHAPTER ONE
INTRODUCTION
1.1      BACKGROUND OF THE PROJECT

    1. STATEMENT OF THE PROBLEM
    2. AIM AND OBJECTIVES OF THE PROJECT
    3. PROJECT MOTIVATION
    4. SIGNIFICANCE OF THE STUDY
    5. JUSTIFICATION OF THE PROJECT
    6. SCOPE OF THE STUDY

CHAPTER TWO
LITERATURE REVIEW

    1. OVERVIEW OF THE STUDY
    2. REVIEW OF THE STUDY
    3. ORIGIN/HISTORY OF THE PROJECT
    4. TECHNOLOGY OF ELECTRONICS DISPLAY
    5. REVIEW OF DIGITAL SIGNALS
    6. PIXEL RESOLUTIONS
    7. CHARACTER RESOLUTIONS
    8. CHARACTER RESOLUTIONS

CHAPTER THREE
METHODOLOGY

    1. SYSTEM DISCRIPTION
    2. SYSTEM BLOCK DIAGRAM
    3. SYSTEM DESCRIPTION
    4. SYSTEM SOFTWARE
    5. THE PROCESS OF DESIGN AND CONSTRUCTION
    6. CIRCUIT BOARD DESIGN AND IC CHIPS
    7. LOADING THE ROM
    8. FABRICATION
    9. THE DISPLAY SYSTEM
    10. POWER SUPPLY

CHAPTER FOUR
TEST AND RESULT ANALYSIS

    1. COMPONENTS ASSEMBLY
    2. CIRCUIT CONSTRUCTION TECHNIQUES
    3. SELECTION OF COMPONENTS
    4. STEP-BY-STEP-METHOD
    5. CONSTRUCTION ON VEROBOARD
    6. SOLDERING TECHNIQUES
    7. TESTING/COUPLING
    8. TIPS ON MAINTENANCE OF THE PROJECT

CHAPTER FIVE

    1. CONCLUSION
    2. RECOMMENDATION
    3. REFERENCES

 

CHAPTER ONE

  1. INTRODUCTION

1.1                                           BACKGROUND OF THE STUDY
Communication has become inevitable and vital thing in this present age, it is even believed to be a commodity meant for consumption by any targeted audience. One of the important qualities possessed by all animals is the ability to communicate with each other or one another at a given time.
An information display is a way of providing information and is used as an object for notification. It can be used for both indoor and outdoor which makes it universal fit for any form of alerts.
The extent of development in information dissemination has made it possible that the well known method of displaying information using sign posts, placards, notice boards, etc has to be modified by using intelligent display board.
In the previous years, the means by which adverts, information are display has been through the use of static mode of sign display such as banners, flyers etc, they are becoming boring and unattractive.
LED Display system display advertisements are designated to catch a people’s attention and create a memorable impression very quickly, leaving the reader thinking about the advertisement after they have driven past it. They have to be readable in a very short time because, they are usually read while being passed at high speeds.
This piece of digital technology can be found in a number of places and are being used for different purposes.
In some business places, it is used to display “welcome” which can communicate to customers when the business was opened.
This is a new generation of multicolor LED display system where, in addition to the usual function of LED display, they concurrently provide audio broadcasting through the visible light rays transmitted by the display panel or assembly. The  system is comprised of a tricolor dot matrix display panel with an interface circuit to a computer, an audio signal transmitter, and a receiver. It also comprises an executive program that runs on the computer for the display control of characters, decorative pattern or messages on the display panel. The receiver is designed to demodulate the optically transmitted audio information, and reproduce the messages with the speaker. For modulating emission of the LEDs, an oscillator is used to vary the frequency of on/off periods of the LEDs. The frequency of flicker is high enough to be indistinguishable by human eye and, hence, display appears to be constantly illuminated.

1.2                                          STATEMENT OF THE PROBLEM
Due to limitation of the sign board or local sign board which could not display clearly at night expect light shines on it, it is then necessary that electronic display system is employed to counter the limits of the local sign board. The information displayed on the local sign board is less attractive compared to the information displayed using dot matrix display system. Also, the existed LED display system only displayed the programmed information which will make it difficult for the blind to read the information displayed.
Thus, researchers are prompted to tirelessly hold up to these challenges by initiating some means of improving the above among which is the design and construction of a dot matrix display system with an audio output..

1.3                  AIM AND OBJECTIVES OF THE PROJECT
The main aim of this work is to build an LED display system that will display “WELCOME” with audio output. Specifically this study will achieve the following:
i        To display “welcome”
ii       To use the LED display system constructed as a sign post for the electrical department.
iii      To have more knowledge on what LED display system is all about.
v       To know the benefits of an LED display system.

1.4                                                      PROJECT MOTIVATION
The motivation of this project comes from the change involved with information in respect to time this days now prompt the huge step of constructing a reprogrammable intelligent display board to give information about anything at a particular moment to the targeted audience and need to know how Dot matrix display system can at least provide some improved measures to the limitations of conventional display listed in the problem statements. The astonishing and spectacular display of an electronic display is as well a source of inspiration.

1.5                                          SIGNIFICANCE OF THE STUDY
In all field of human endeavour, LED display system plays very vital role, such as means of advertisement, means of communication, presentations, exhibitions, identification and direction. It is also used in giving warning or safety instructions, such as warning signs, traffic signs, exit signs or signs conveying rules and regulations. This project write-up will be a guide to future designing in a related work.
1.6                                         JUSTIFICATION OF THE PROJECT
Due to the various problems encountered in the manual/analog design and construction of signposts for advertisement, there is every need for an automated electronic display system that will solve this problem. This will ensure that viewers get the adequate information that is displayed in good and attractive colors. The though the manual/analog way of displaying information to the view of the people is still targeted viewer are attracted. The height in which advertisement in Nigeria have attained will be maintained if some of its design/construction operation is computerized (Micro controller based information display) especially the one’s that has to do with bigger companies. This will also maintain the good relationship between the company and its numerous customers.

1.7                                               SCOPE OF THE STUDY

The scope of this study covers the building of an LED display system in which all the light-emitting diodes (LEDs) are modulated and encoded with audio information is presented. The novelty is on the concurrent use of the tricolor LED display for simultaneous visual message display and audio signal transmission in a free-space optical link. Program written in Assembly language was burned into the EPROM (Erasable Programmable Read Only Memory) of the system. The operation and working were enunciated. There are recommendations as the project is of outstanding quality. The feature of multiple colour makes it unique from other single colour display.

 


CHAPTER TWO: The chapter one of this work has been displayed above. The complete chapter two of "design and construction of an led display with audio output" is also available. Order full work to download. Chapter two of "design and construction of an led display with audio output" consists of the literature review. In this chapter all the related work on "design and construction of an led display with audio output" was reviewed.

CHAPTER THREE: The complete chapter three of "design and construction of an led display with audio output" is available. Order full work to download. Chapter three of "design and construction of an led display with audio output" consists of the methodology. In this chapter all the method used in carrying out this work was discussed.

CHAPTER FOUR: The complete chapter four of "design and construction of an led display with audio output" is available. Order full work to download. Chapter four of "design and construction of an led display with audio output" consists of all the test conducted during the work and the result gotten after the whole work

CHAPTER FIVE: The complete chapter five of "design and construction of an led display with audio output" is available. Order full work to download. Chapter five of "design and construction of an led display with audio output" consist of conclusion, recommendation and references.

 

CLICK HERE FOR MORE RELATED TOPICS/MATERIAL


To "DOWNLOAD" the complete material on this particular topic above click "HERE"

Do you want our Bank Accounts? please click HERE

To view other related topics click HERE

To "SUMMIT" new topic(s), develop a new topic OR you did not see your topic on our site but want to confirm the availiability of your topic click HERE

Do you want us to research your new topic? if yes, click "HERE"

Do you have any question concerning our post/services? click HERE for answers to your questions


For more information contact us through any of the following means:

Mobile No phonelogo:+2348146561114 or +2347015391124 [Mr. Innocent]

Email address emailus:engr4project@gmail.com

Watsapp No whatsapp.html :+2348146561114


COUNTRIES THAT FOUND OUR SERVICES USEFUL

Australia, Botswana, Canada, Europe, Ghana, Ireland, India, Kenya, Liberia, Malaysia, Namibia, New Zealand, Nigeria, Pakistan, Philippines, Singapore, Sierra Leone, South Africa, Uganda, United States, United Kindom, Zambia, Zimbabwe, etc
Support: +234 8146561114 or +2347015391124

Watsapp Nowhatsapp.html
:+2348146561114


E
mail Address emailus:engr4project@gmail.com


FOLLOW / VISIT US VIA:

tweeter instagram.htmlfacebook logomyyoutubelogo.html