ABSTRACT
This work deals
extensively with the design and construction of an electrodice display (EOD)
with audio unit. The device displays the value of a ludo dice in numerical form
and also produces sound as it displays the number.
The device works with
principle of chance employed by ludo game players. The output of the display is
usually very rapid that the player does not actually see the number when the
device is switched ON so that it will purely be a game of chance. When the off
key is pressed, a particular number is displayed and this number is the number
the player got.
The operation of the
device starts by the generation of a pulse frequency. The pulse frequency
(square wave signal) is generated by times (555 timer) by connecting in
unstable multi-vibrator. The output from the timer is used in clocking the
binary counter (mode 10 counter) but this counter is biased in the mode 10
counter, the output from Qo, Q1 and Q2 were connected to the reset pins so that
once the counter finishes the count of six of goes back to zero.
The result from the
binary counter is then fed to the decoder / driver before connecting it to
seven segment so that the decoder will be able to convert the binary values to
the decimal values that are being used in the ludo game dice. The seven segment
then displays the numbers by lightening the diodes that make up that
particular.
This device is being
regulated by a latch (4-edge triggered flip-flop which has two switches, one is
used for putting the power supply and the other two push switches for the
working of the dice display.
LIST OF TABLES
Table
3.1 Trueth table for sk flip
flop
Table
3.2 Delay flip flop from SR
flip flop
Table
3.4 AND logic gate truth table
Table
3.5 Table of counter output in
various forms.
Table
3.7 BCD to seven segment
decoder truth table.
Table
4.1a BCD count sequence
Table
5.0 Procedure Chart
Table
5.1 System Flowchart
Table
6.0 Program Design
Table 6.1 Program
Flowchart
TABLE OF CONTENTS
CHAPTER ONE
INTORDUCTION
1.0
Statement of problem
1.1
Purpose of study
1.2
Aim and objectives
1.3
Scope of the study
1.4
Limitations of the study
1.5
Definitions of terms.
CHAPTER TWO
LITERATURE REVIEW
CHAPTER THREE
DESCRIPTION AND ANALYSIS
OF THE EXISTING SYSTEM FACT FINDING METHODS
Organization structure
Objectives of the
existing system
CHAPTER FOUR
DESIGN OF THE NEW SYSTEM
Output specification and
design
Input specification and
design
File design.
Procedure chart
System flow chart
System Requirement.
CHAPTER FIVE
IMPLEMENTATION
Program Design
Program Flowchart
Pseudcodes
CHAPTER SIX
DOCUMENTATION
CHAPTER SEVEN
RECOMMENDATION
CONCLUSION
REFERENCE
CHAPTER ONE
INTRODUCTION
Instrumentation
engineering has advanced widely with the introduction of medium scale
integration (MIS), large scale Integration (LSI) and very large scale
Integration (VLSI). For the purpose of accuracy and reliability analogue
instruments are being replaced by the digital ones. The electronic dice display
(EDD) with audio unit is among this now bread of instruments.
1.0 STATEMENT
OF PROBLEM.
The design of an
electronic dice display is invented because of the quest fort reducing
strenuous activities encountered by man, especially on the area of its
recreational activities. This device is used in ludo game. The ludo game on its
manual operation, as he manipulated by the experts so that it can no longer be
a game of chance. Sometimes players can employ tricks on their opponents which
playing the game, for example if the both players are not vigilant, one of the
them can event thwart the dice and claimed that nothing happened. The players
too may get tired after playing two or three times because of the stress in
shaking and playing the dice, the frequent hitting of the dice on the ludo
board can even give cracks on the glass covering the ludo board. One can
even experience the dice getting lost in the game because the dice is
very small so if care is not taken, it can fall out from the board. All these
problems were taken into consideration before constructing the electronic dice
display.
1.1
PURPOSE OF THE STUDY.
As stated earlier, the
design of this device is to help man conquer his environment. With the advent
of medium scale integration (MSI), Integration circuit (IC) can be used to
design devices that can help man perform his work effectively. With little or no
stress and even sometimes at a cheaper rate. The device too will eradicate all
the stress, tricks and pranks encountered when playing ludo game.
1.2
AIMS AND OBJECTIVES
The device will increase
the fun derived from playing the game, even little kids can now join since they
only need to press the buttons for the device to work. The game will now be
purely based on chance because all bias will be eradicated, no expert can
manipulate the device no matter how many times you use it. the normal phenomenon
of playing tricks will be a thing of the past.
1.3 SCOPE
OF THE STUDY
The work covered that
playing and displaying of number got. This that the device when switched ON and
STAR button is pressed, a particular number will be shown and this is the
number the player got. This means that the player still need to get a ludo
board and the seeds for the game.
1.4 DEFINITION
OF TERMS
AND GATE.
It is a circuit
which gives a high outputs (ie logic 1 = high and logic O = low)an AND gate is
represented by a dot to indicate it is a multiplication.
A
A.B
B
fig 1.0 AND GATE
CAPACITORS:
It provides a means of
storing electrical energy in form of an electric field.
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Fig 1.1 Capacitor
COUNTER:
A circuit, which gives
output pulse for every two inputs pulses. If the input pulses are irregular the
circuit is regarded as counter. Counters usually come as integrated circuit.
Decoder/driver:
A decoder can be
the reverse of an encoder circuit, there are a variety of decoders designed for
specific purpose. In this case it is used as a code converter where it is
required to convert from binary coded decimal (BCD) to decimal.
Diode:
Diode are two terminal
devices which exhibit low resistance to current flow in the other.
FLIP FLOP:
It is a continual logic
that can be able to hold one bit at a time.
LATCH:
A latch is a combination
of flip flops, in the particular (IC 7474) latch, it has a combination of 4
positive edge triggered flip flops. It changes state on reseipt of an input
signal but a way that it does not change state.
MULTIVIBRATOR (ASTABLE)
They are flip flops that
has no stable state. It is called astable or free running multivibrator. These
type of logic circuit switches back and forth (oscillates) between unstable
states. Useful for providing clock signals for asynchronous digital circuits.
RESISTORS:
Resistors provide us
with a means of controlling voltage in a circuit electronic circuit.
SWEN SEGMENT DISPLAY:
This is a method of
displaying the numerals from 0 – 9 by illuminating 2 or more elements out of
the seven arranged in a form. If all the elements 1,2,7,5 and 4 are illuminated
a 5 is displayed. Seven segment display is extensively used in electronic equipment
e.g recoders, calculators and digital watches.
TIMER:
Timers are used to
generate continuous waves or pulse frequency which is usually used for linear
applications such as low level amplification, for switching applications, high
frequency application and can also be designed to handle high voltage.
a
Department | Computer Science |
Project ID Code | CMS0033 |
Chapters | 7 Chapters |
No of Pages | 54 pages |
Reference | YES |
Format | Microsoft Word |
Price | ₦4000, $15 |
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Contact Us On | +2347043069458 |