The document reports on a software controlled LED display board project completed by 5 students for their Design Engineering course. It includes an introduction, purpose, description of the LED modules, power supply, controller, software used, and applications of the scrolling LED display board. The students designed and built the LED display board and controlled it using LED Player 6.0 software.

1. Page | 1
GUJARAT TECHNOLOGICAL UNIVERSITY
Chandkheda, Ahmadabad
GOVERNMENT ENGINEERING COLLAGE, PATAN
A Report on
“Software controlled LED Display Board”
Under Subject of
DESIGN ENGINEERING – IIB
B.E. Semester – VI
(Electrical Engineering)
Submitted by :
No. Name Enrollment No.
1 Bijohn Joseph 160220109001
2 Yash Contractor 160220109006
3 Urfiyaben Mansuri 160220109017
4 Kundan Parmar 160220109027
5 Dhruvisha Patel 160220109033
(Faculty Guide) (Head of Department)
Prof. S. G. Prajapati Prof. V. K. Prajapati
Academic Year
(2018-2019)

2. Page | 2
GOVERNMENT ENGINEERING COLLEGE, PATAN
At-Katpur
Certificate
Date of Submission _________________
Faculty Incharge External Examiner Head of Department
This is to certify that, Bijohn Joseph, Yash Contractor, Urfiyaben
Mansuri, Kundan Parmar and Dhruvisha Patel Enrollment No.
160220109001, 160220109006, 160220109017, 160220109027 and
160220109033 of 6th
semester Electrical Engineering has satisfactory
completed practical work in the subject of Design Engineering within four
walls of Government Engineering College, Patan.

3. Page | 3
ACKNOWLEDGEMENT
APPROVAL SHEET
It is a pleasure to thank the many people who made this project
review possible. It is difficult to overstate my gratitude to my advisor,
Prof. S. G. Prajapati. He provided me this opportunity to work in this
inspiring project. With his enthusiasm, inspiration, and great efforts to
explain things clearly and simply, he helped to make this work fun.
Throughout project review period, he provided encouragement, sound
advice, good teaching, good company, and lots of good ideas. I have
learned many things from him such as the way of thinking and the way
of conducting project review.
It gives me immense pleasure in expressing my heartfelt gratitude
to Prof. V. K. Prajapati H.O.D. Electrical Department for all the
cooperation he has rendered in the successful completion of this work. I
am most appreciative of the instructions; I received during my
discussions with him. I am sure that these invaluable lessons about
presentation skills will provide me with a strong foundation for my future
work.
My parents have always encouraged me and guided me to
independence, never trying to limit my aspirations. I would like to thank
my family and friends who have been very helpful in this endeavor.

4. Page | 4
INDEX
Sr. No. Title Page
No.
1. Introduction 5
2. Purpose of Project 6
3. What is Scrolling LED Display ? 7
4. LED Module 8
5. Power Supply Box 12
6. LED Controller 13
7. Software – LED Player 6.0 15
8. Communication 16
7. Introduction of Canvas 18
7. Advantages 24
8. Dis-Advantages 25
9. Application 26

5. Page | 5
Introduction
Everything around us is becoming smart such as smart phones,
smart televisions, smart refrigerators, so why Not Smart Displays
boards for advertisements and notices.
Display boards are primary thing in any institute, organization,
public utility places like bus stops, railway stations, parks, shopping
malls to display information regarding platforms, various
advertisements about the products, or important notices. People are
now adapted to the idea of the world at its fingertips.
We normally use a simple static LED display screen to convey a
message. Earlier, when we want to display large data, we used to
change message for every few instances. Now scrolling displays are
more preferred to static. By using a pre programmed controller, we can
make LED display in scrolling way. We can also make LED to
adoptable by using PC controller based system.

6. Page | 6
Purpose of Project
In our project we have brought LED Display Board. We are using
LED Player 6.0 software to control the LED based Display Board. By
using this software we have a full control over the LED Display. We
are using this LED Display Board to display GATE Questions and
some important notices in our department.

7. Page | 7
What is “Scrolling LED Display” ?
The actual concepts of these scrolling led displays are the
presence of the LED in it. They use the Red led in most of the cases
because the Red color will attract the attention of the visitors a lot.
The LED’s will ON at a particular time period and OFF on a specific
time.
There is an electronic circuit in the internal part of the device
which consists of the Integrated Circuits(IC’s). The circuit works by
power supplied. According to the program written in the circuit, this
will work. It gives supply to specific led’s present in the scrolling led
display such that, they will ON and OFF for a particular time
intervals.
The circuit has the sense to display all types of alphabets on the
scrolling led display. There will be some particular information to
display. If this information once displays on the scrolling led display
immediately after a mean time the LED’s light pattern is will shift
off to the next segment of the led column.
This will occur in a fraction of a second. Our eyes can’t detect
this movement. This principle is called “Persistence of
vision (P0V)”. Thus, the information displayed on the screen will
move so we called it as scrolling led display.

8. Page | 8
LED Module
 P10-(1R)-v706 Module Picture
 General Information
The P10 single color is a high brightness, lower power
consumption, long life time display module. Designed for semi-
outdoor use environment.
This module LED display panel can be used to make any kind of
large outdoor LED display panels by arranging modules in horizontal
and vertical manner. one panel has a width of 12 inches and height of 6
inches. Display has a resolution of 32*16 pixels thus there are total 512
LEDs. It has a good quality plastic cabinet that makes it suitable for
outdoor use. The module has whole control circuit built in and has a
simple interface requiring only seven line connections with controller
board.
 Height of Module : 6 Inches
 Width of Module : 12 Inches
 Resolution of Module : 32*16 Pixels
 Total LEDs in Module : 512

9. Page | 9
 Features
 1/4 duty scan drive
 Brightness : 3500nits to 4500nits
 Max Power Consumption : 20W
 Input Voltage : 5V DC (Max. 7V)
 Input Current : 1.5A
 Constant Voltage Drive
 IP65 Waterproof
 Operating Temperature : -20℃ to 50℃
 1W Pixel Configuration
 High Viewing Angle
 High Contrast Ratio with a perfect louver/cover

10. Page | 10
 Working Principle of Module
 Controlling large amount of LED with limited control lines uses
two principles or techniques
1. Serial to parallel conversion
2. Persistence of vision
 To convert serial data coming from MCU a shift register is used. In
these modules 74HC595 IC is used. This IC is a 8 bit serial in
parallel out IC.
 It has main four lines for interface.
 To shift 8 bits of data to it, the first bit of data (i.e. bit 0) is put on
DATA line. For example if this bit is 0 then DATA line is pulled
LOW or if this bit is 1 then data line is pulled high (+5v).
 Once valid data is put on the DATA line, the shift clock line is
made high, and then made low. This transfers the bit on data line to
the IC from the MCU.
 In the same way all 8 bits are transferred to the IC.
 In the display panel, 16 such shift registers are cascaded. So you
need to transfer 8x16=128 bits to control 128 LEDs.
 You may wonder if there are 512 LEDs on the board but we are
only sending data for 128 LEDs, how it is gonna work?
 Here comes the technique of persistence of vision that is
employed in all electronic displays (even TVs).
 In this display we only show ¼ of the total image in one frame,
next frame show other ¼ image. In the same way 4 frames are
required to show complete image. These sub frames are switched at
such fast speed that human eyes sees complete picture.

11. Page | 11
1 Group 1
2 Group 2
3 Group 3
4 Group 4
5 Group 1
6 Group 2
7 Group 3
8 Group 4
9 Group 1
10 Group 2
11 Group 3
12 Group 4
13 Group 1
14 Group 2
15 Group 3
16 Group 4
 As you can see in the image below, 16 lines of the display are
divided into four groups. So first line is group 1 then after 3 more
lines the 5th line is again group 1. So 512/4 = 128 LEDs. So in each
group there are 128 LEDs, that is why we need to transfer 128 bits to
control these 128 LEDs.
 There are two line named A and B on
the panel connecter. The logic level on
these pins decides which group is
selected. Only the LEDs on the selected
line glow according to the 128 bits of
data received from the MCU.
 So if you select group 1 by setting A=0
and B=0 following lines are selected 1,
5, 9 and 13.
 So the data that you will send using
serial interface will be shown on these
LEDs.
 So the data that you will send using
serial interface will be shown on these
lines.
 In the same way transfer data to the lines
belonging to group 3 and 4. This will
make the whole picture of the frame.
 But this switching should be so fast that
human eye cannot see it. Normally 400
Hz switching frequency is best. As it
will make you able to 100 complete
frames per second.
Warning
 Do not supply power in wrong polarity.
It will damage the module.
A B
Group
Selected
0
0 1
0 1 2
1 0 3
1 1 4

12. Page | 12
Power Supply Box
 Features
Here A-200AF-5 Power supply box is used. this supply box is
provides input supply for module and other components of LED
Display. A power supply unit converts mains AC to low-voltage
regulated DC power for the internal components of a Display
 Input Voltage : 200 – 240 VAC;
 Input Current : 2.5A
 Frequency : 50/60 Hz
 Output Voltage : 5 VDC
 Output Current : up to 40A
 Dimension : 195 x 83 x 30 mm
 Power : 200 Watt
 Protection : overload / short circuit protection
 Thin thickness, can reduce the thickness and
weight of the display
 High reliability
 Strong load capacity

13. Page | 13
LED Controller
 T2 – LED Display Controller Card - (Ethernet + USB)
The6th
generation of LED display control system designed by
LISTEN VISION is the super led display controller with full-featured,
high performance since nearly 10 years’ specialized in led display
control system field.
Secondary development of LED display control system includes
hardware-level secondary based SDK, dynamic libraries, secondary
development of software packages, such as level of secondary
development, and based LED control systems display data protocol
"direct dialogue control system" development.
Secondary development protocols and application describes only
LED-based control systems display data protocol "direct dialogue
control system" hardware-level secondary development.

14. Page | 14
 Important Features & Parameters
 Supports 128 programs
 Each program supports 16 any partition of the display area.
 Memory : 2 MB
 Adaptation : Single Color & Double Color
 Pixels : Single 1024*32 (32K)
 Area Type font supports text and captions.
 Text and captions support 16 and 16 (32 and 32 also) dot matrix
Chinese font English font.
 Text and captions support carriage return line feed.
 Text and captions support wrap area.
 Each area can be set independently of text or subtitle colors, font
size.
 Support RAM refresh, refresh time can be achieved within
200ms.
 Support high-speed RAM refresh and Flash memory refresh two
display update mode (two different firmware).
 Communication function features : Support RS232 and RS485
communication, Support broadcast communication (direct
communication), Support static IP communication (TCP
communication).
 Communication : USB port & Ethernet interface
 Voltage : 3.5V to 6V
 Max. Power : <1W
 Software : LED Player 6.0

15. Page | 15
Software – “LED Player 6.0”

16. Page | 16
Communication
“When the message needs to change you need the process to be simple and swift.
Scanlite gives you a range of ways to control your digital signage easily.”
 Communication through Ethernet Cable
If the LED display sign you wish to
control is within a few meter of the computer
you’ll be using to control it a cabled
connection will be the simplest, most
effective way of refreshing your messaging.
Ethernet network is the most common
communication method.
An Ethernet cable connection links your
computer to the display board. Control the
LED display signs throughout your building
using your local network (LAN), wider
network (WAN) or Internet.
You’ll need an Ethernet connection
cable between your computer and your
internet port but you’ll avoid the need to run
further cables throughout your building.
Secure, fast and a natural choice for
buildings with cabling fitted as standard.
This method makes use of the Ethernet
communication card installed in your
computer and used to communicate with the
LED display. Most LED sign manufacturers
offer this type of connectivity without special
adapters. It is usually used for wall mounted
signs and street signs that are closer to the
building or network drop.
Ethernet cable should not be more than 300 ft in length. If the distance is
more than 300 feet, extend it by connecting to an Ethernet HUB or Switch.

17. Page | 17
 Communication through USB
USB communication method is the
most basic type of communication. In
this method, software exports the new
message and design as well as new
settings to a USB drive. Then, the USB
is plugged in to the USB port of the
Display board to transfer the data. After
new data is transferred automatically,
the USB drive can be detached. Once
transfer is complete, the USB drive can
be removed.
Advantage
This is the most basic type of
communication. It means no extra cost
and more reliable and easy repair and
maintenance method hence there is no
multi-step complex parts between your
computer and your LED Display. It not
required any extra devices. It can be
used as a backup in case of an issue with
another communication method.
Dis-Advantage
User must walk out to the display to
change the message.
In case of the signs installed in high
elevation or out of access, USB
communication needs cabling or special
consideration.

18. Page | 18
Introduction Of Canvas
This report is all about mind mapping, AEIOU summary,
empathy mapping, ideation canvas and product development
canvas. Team members have chosen the topic is Software
controlled LED Display Board. Design Engineering is the
subject which gives us better knowledge about our efficiency
to observe. We have love to study the design engineering
subject, it ’ s all about great joy and pleasure to creative our
brain power and used the observation power and created mind
map, and some other important sheets by our observation.

19. Page | 19
1. Ideation canvas
The set of people mentioned in the ideation canvas are the
engineers, workers, electrician, students.
The activities shown in the above ideation canvas is listed as
below :-
The activities like researchers are researching on this project,
engineers repair the project display board and etc… Different
situation/context/location mentioned in the ideation canvas is
listed Laboratory, college, home etc…. The
props/tools/objects/equipments are in the ideation canvas are
Power supply box, controller card module etc.

20. Page | 20
2. AEIOU Summary
AEIOU Summary is describing all information like environment,
interaction, its user, activities and objects. Environment of LED
display sunny, green, dusty and wilderness. Some activities were done
by the people like teacher are teaching on this topic, businessmen etc.
And objects are LED module, controller card etc.

21. Page | 21
3. Product Development canvas
Purpose :-
The main purpose of is to Learn GATE questions.
People :-
1. News Reporters
2. Businessmen
3. Manager
Product Experience :-
1. Easy control
2. Smooth Control
Product Function :-
1. Advertisement & Announcement
Components :-
 Module, supply box, controller card etc.

22. Page | 22
4. Empathy Mapping
We made empathizing canvas on Software controlled LED
display board
We are happy … because it is useful for all students of college
to learn GATE questions
It is useful to show any important notice and announcement
As its size is big, it was difficult for us to bring it to college.

23. Page | 23
5. MIND Mapping
6. Prototype

24. Page | 24
7. Learning Needs Matrix

25. Page | 25
Advantages
 The primary advantage of scrolling text is its ability to display a
larger amount of information than stationary text.
 Another advantage of scrolling text, particularly LED signs, is
that it is more attention-grabbing than stationary text. The
movement of the text and the brightness with LED scrolling text
signs draw the reader's eye to the message presented.
 An LED scrolling text sign can also be more easily changed to
display current messages than print signs.
 It shows the messages in different languages as per required.
 The basic advantage is the appearance of LEDs, which look too
awesome with Slim Design, Better Color.
 Longer lifespan and less environmental impact
 Wider Viewing angle (typically 175 degree)
 It shows the digital and analog clock
 Lower Power Consumption
 Brighter and sharper text
 No motion delay and lags
 Excellent finishing
 High accuracy
 Advance controls

26. Page | 26
Dis-Advantages
 The disadvantages of scrolling text relate to the message not
being presented as a whole or being difficult to read.
 Because of the constant movement of the text, the reader may
begin his observation of the message midway through a
sentence.
 The writer of the text must then trust that the reader will
continue observing the scrolling text until the message cycles
back through to the beginning.
 LEDs are currently more expensive than conventional lighting
technologies
 LEDs can shift color due to age and temperature
 Contrast ratios not consistent
 LED performance largely depends on correctly engineering
 LEDs must be supplied with the correct voltage and current
 Much higher price

27. Page | 27
Applications
 It is mainly used as Destination Display Boards on Busses,
Trains and Cabs etc.
 LED display used in railway stations, bus stations, airports etc…
to show various information messages to people.
 Moving message display can be used at Schools, Colleges and
Training institutes for showing information or announcements
to students.
 It also used in hospitals, banks, public offices, Hotels, shops to
shows the date & time and other useful information and
advertisement
 Can be used to display messages in worship edifices eg:
Churches, temples, mosques etc.