Design and Construction of an Ledscore Board for Minna Township Stadium

7/25/2019 Design and Construction of an Ledscore Board for Minna Township Stadium

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DESIGN AND CONSTRUCTION OF AN LED-

SCORE BOARD FOR MINNA TOWNSHIP

STADIUM

OCHEJ E

G BRIEL

2 4118844EE

DEPARTMENT

OF

ELECTRICAL AND

COMPUTER ENGINEERING

FEDERAL UNIVERSITY OF

TECHNOLOGY

MINNA

DECEMBER

2009

f;

.


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DESIGN ND CONSTRUCTION OF N LED-

SCORE BO RD FOR MINN TOWNSHIP

ST DIUM

rr-

OCHEJ E

G BRIEL

2004118844EE

DEP RTMENT OF

ELECTRICAL

ND

COMPUTER

ENGINEERING

FEDERAL UNIVERSITY OF TECHNOLOGY,

MINNA

A

THESIS PRESENTED

TO THE DEP RTMENT

OF

ELECTRICAL

ND COMPUTER ENGINEERING,

FEDER L

UNIVERSITY OF

TECHNOLOGY, MINNA,

IN

P RTI L FULFILLMENT OF THE

REQUIREMENTS

FOR THE W RD

OF

THE

B CHELOR

OF

ENGINEERING B.ENG) DEGREE IN ELECTRIC L ND

COMPUTER

ENGINEERING

DECEM ER 2009


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DECL R TION

I, Ocheja Enemaneju Gabriel, hereby declare that this work was done by me and has never been

presented anywhere for the award

o

a degree I also hereby relinquish the copyright to the

Federal University

o

technology, Minna.

Ocheja E. Gabriel

Name o Student)

~ _ A l ~ l ~ ~ ~

Signature and date

.Engr. Dr. Y.A. Adediran

Head o department)

Signature and date

v

4 J A. Ajiboye

Project Supervisor)


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LIST OF FIGUR S

Fig.

1 1

A Football Scoreboard

Fig. 1 2 A Basketball Scoreboard

Fig. 2 1 4 bit SIPO Shift Register

Fig. 2.2 4 bit PI SO Shift Register

Fig. 2.3 Diagram

of

a P N junction

Fig. 2.4 Diagram

Fig.

3 1

Block diagram

of

Dot matrix display

Fig. 3.2 Interface between PS/2 Keyboard and Microcontroller

Fig.3.3 Atmega 8515 microcontroller circuit configuration

Fig.3.4 LEOs arrangement in Matrix form.

Fig.3.5 Cascading the 74HC595 shift register.

Fig. 3.6 Block Diagram of 7 segment display section.

Fig. 3.6b AT89C51 Microcontroller circuit configuration

l

Fig.3.7 LED Driver.

Fig. 3.8 LED 7 segment display circuitry.

Fig 3 9

Power Supply Circuitry.

Vll


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LIST OF T BLES

Table 21 Compounds and LED colours

Table 31 The PS/2 Keyboard connector

Table 4 1 Casing Specifications

VIII


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T BLE

OF

CONTENTS

Cover Page

Title Page

11

Dedication :

Declaration IV

Acknowledgement v

Abstract

VI

List

of

Figures

ll

List

of

Tables viii

hapter One Introduction

I

1 1 Introduction

1 2

Types

of

Electronic scoreboard 2

1 2 1

Football Scoreboard 2

1 2 2 Basketball Scoreboard 3

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13 Aims and Objectives 4

1 4

Significance 4

1 5 Methodology 5

1 6 Scope and limitations 5

1 7

Project Layout 5

Chapter Two Literature review and Theoretical background

2 1 Brief History 6

2 2 Previous works o others 8

2 3 Theoretical Background 9

2 3 1 The Power Supply Unit 9

2 3 2 Microcontroller 10

2 3 2 1 Types

o

microcontrollers

2 3 2 2 Microcontroller Programs

12


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2.3.2.3 Programming environment

of

a microcontroller.............................................. . 13

2.3.3 Shift Registers........ .............................................................................................. 14

2.3.3 .1 Serial in Serial Out Shift register............................................... :............... 15

2.3.3.2 Serial in Parallel Out Shift registers......................................................... 15

2.3.3.3 Parallel in Serial Out Shift Registers.. ............. ......... ...... ........................ 16

2.4 Light-emitting Diodes.............. .............. .. . . ...... . ......... ...................................... 17

2.5 Block Diagranl ............ ....... . ........ ...... ....................... ........................ :............ .

18

hapter

Three: Design

and

Implementation

3

1

The dot-matrix display board section ..................................... ................................

19

3 1 1

Tne Keyboard interface ......................

................................ :.............................. 20

3.

1 2

Atmega 8515 Microcontroller............................ ..............................................

22

3.1.3 LED Dot matrix display....................... ....................... .... .............. .... .................... 24

3.2 The Seven Segment Display section.............................................................................

25

3 2 1 AT89C51 Microcontroller ..........................................................................:....... 26

3.2.2 LED Driver.....................................

...................................................................

28

3.2 3 LED Seven Segment display ............ .... ....................................... :........................ 30

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3.3 Power Supply Section......... .... ......... ..... ........................................................................

31

3.4 Software Development Section .... ..... .......... ..... .

...

.....

..

................................................. 34

3.4. I Dot matrix board program development.. .......

..

........................ .......................... 34

3.4.2 Seven-segment board software development ................... ......... .......................... 36

Chapter Four

Construction

Testing and Discussion

of

Results.

4.1 Assembly ............

..

............. .

...

.... .... .

...

......

...

..... .....

.. ..

..... ............ .....

...

...... .... ................ 39

4.2 Tests and results............................................ ... ... ........................................................ 39

Chapter Five Conclusion and Recommendation

5.1 Conclusion.......

.. .. ..

.... ....

...

..

......

..

................... .... ..... .......

..

..

..

........... ................ ...........

41

5.2 Recommendation ................. .... .

..

...

........ .....

..

............................................................... 41

References ........................ ................ ..............

..

...... ...... .

.. ..

...... ........ ... ............. ................... 4 2

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Documents

Design and Construction of an Ledscore Board for Minna Township Stadium