WIRELESS DATA LOGGER
VIKNESHWARAN NAIDU
This report is submitted in partial fulfilment of the requirements for the award
of
Bachelor of Electronic Engineering (Telecommunication) With Honours
Faculty of Electronic and Computer Engineering
Universiti Teknikal Malaysia Melaka
June 2013
ii
UNIVERSTI TEKNIKAL MALAYSIA MELAKA FAKULTI KEJURUTERAAN ELEKTRONIK DAN KEJURUTERAAN
KOMPUTER
BORANG PENGESAHAN STATUS LAPORAN
PROJEK SARJANA MUDA II
Tajuk Projek : Wireless Data Logger
Sesi
Pengajian : 2 / 2012/2013
Saya VIKNESHWARAN NAIDU A/L PATHMANATHAN
mengaku membenarkan Laporan Projek Sarjana Muda ini disimpan di Perpustakaan dengan
syarat-syarat kegunaan seperti berikut:
1. Laporan adalah hakmilik Universiti Teknikal Malaysia Melaka.
2. Perpustakaan dibenarkan membuat salinan untuk tujuan pengajian sahaja.
3. Perpustakaan dibenarkan membuat salinan laporan ini sebagai bahan pertukaran antara
institusi pengajian tinggi.
4. Sila tandakan ( √ ) :
SULIT*
(Mengandungi maklumat yang berdarjah keselamatan atau
kepentingan Malaysia seperti yang termaktub di dalam
AKTA RAHSIA RASMI 1972)
TERHAD*
(Mengandungi maklumat terhad yang telah ditentukan oleh
organisasi/badan di mana penyelidikan dijalankan)
TIDAK TERHAD
Disahkan oleh:
__________________________ ___________________________________
(TANDATANGAN PENULIS) (COP DAN TANDATANGAN PENYELIA)
Tarikh: 10 June 2013 Tarikh: ………………………..
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DECLARATIONS
“I hereby declare that this report is the result of my own work except for
quotes as cited in the references.”
Signature : ..................................................
Author : ..................................................
Date : ..................................................
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“I hereby declare that I have read this report and in my opinion this
report is sufficient in terms of the scope and quality for the award of Bachelor
of Electronic Engineering (Computer Engineering) With Honours”.
Signature : …………………………………………..
Supervisor’s Name : …………………………………………..
Date : …………………………………………..
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Special thanks to my family, project supervisor and friends
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ACKNOWLEDGEMENT
First and foremost, I would like to extend my appreciation to all who
contributed time, concern and efforts to lend a helping hand and thus allow me to
gain invaluable knowledge. On top of that, I would like to reserve a special thanks to
my supervisor, En. Mohd Shahril Izuan for his excellent in mentoring and guidance.
All his comments and constructive criticism played a pivotal role throughout my
project development.
Next, I wish to thank the countless individuals who had contributed their
constant views and evaluations in accessing my progress at all time. Finally, I would
also like to express my deepest gratitude to my friends who had provided plenty of
fruitful discussions with critical inputs from time to time. It would not have been
possible to complete a project of this magnitude without their support.
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ABSTRAK
Sistem wayarles “data logger” merupakan satu sistem pengumpulan data
yang digunakansecara meluas dalam pelbagai bidang untuk mengumpul data seperti
signal kuasa, suhu dan sebagainya. Secara amnya, sistem in diaplikasikan untuk
mengumpul dan menyimpan data yang dikehendaki untuk memerhatikan variasi
perubahan sesuatu data yang dianalisa. Menghadap zaman digital masa kini, sistem
wayarles “data logger” mungkin berharga mahal di mana pengguna tidak mampu
memiliki satu dan sangat rumit cara penggunaannya .Dalam projek ini, objektifnya
adalah untuk membina suatu sistem wayarles “data logger” dengan komponen
elektronik yang kurang bilanganya lalu mengurankan harga sistem ini. Selain itu,
adalah suatu yang penting dimana sistem ini dapat menghantar maklumat dalam
bentuk wayarles. Dengan projek ini juga , suatu perisian akan dibina untuk menerima
data tersebut dan menyediakan tempat penyimpanan data dalam computer.
Seterusnya jangkaan hasil projek ini adalah satu sistem wayarles “data logger” yang
berkualiti lagi berkesan bagi mengumpul maklumat untuk dianalisa pada masa
depan. Projek ini juga dapat dikomersialkan dalam pelbagai industry seperti
pertanian , gudang dan lain lain lagi.
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ABSTRACT
A wireless data logger system is widely used in various fields to log data of
variable parameters such as power signal, temperature and many more. It is generally
used to store and accumulate data received from a particular data source. The
importance of wireless data logger is as a recording device for creating a time-
sequence history of events for a subjected parameter. The primary focus of this
project would be on the acquisition and logging of data signal. Nowadays, any data
loggers either wired or wireless are costly and also complicated to use it. The key
objectives to develop this wireless data logger are to implement fewer components
thus reducing the cost of it, as well as making it portable via wireless transmission
.The wireless data logger is developed with software which enables user to monitor
data acquisition of particular parameters and save it according to the date the data
acquired. The expected result of the project would be a reliable and fully functional
user-friendly signal data logging system with the ability to log data signal input for
future references. The wireless data logger can be commercialized to be used in
agriculture industry, fermentation and warehouses.
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TABLE OF CONTENTS
CHAPTER CONTENT PAGE
PROJECT TITLE i
DECLARATIONS iii
DEDICATION v
ACKNOWLEDGEMENT vi
ABSTRAK vii
ABSTRACT viii
TABLE CONTENTS ix
LIST OF GRAPHS xii
LIST OF TABLES xii
LIST OF FIGURES xiii
LIST OF APPENDIX xiv
LIST OF ABBREVIATIONS xv
I INTRODUCTION
1.1 Overview 1
1.2 Objectives 2
1.3 Problem Statement 2
1.4 Scope 3
1.5 Overview 4
II LITERATURE REVIEW
2.1 Introduction 5
2.2 Literature Overview 5
2.3 Madge Technology RFRHTEMP2000A 6
Wireless Data Logger
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2.4 Dickson Data Products TP125 7
2.5 TMI Orion Tech Pico VACQ 8
2.6 Comparison between the market ready 9
Data Loggers
2.7 Sensors 9
2.7.1 Temperature Sensor 10
2.7.2 LM 35DZ Sensor 10
2.7.3 Humidity Sensor 12
2.8 Microcontroller and Microprocessor 13
2.8.1 Comparison between 14
Microprocessor and Microcontroller
2.8.2 PIC 16F877A and PIC 16F887 18
2.9 Bluetooth 20
2.9.1 Bluetooth Operation 20
2.9.2 Bluetooth Class 21
2.9.3 Bluetooth and ZigBee 25
2.9.4 Data Logger 27
III PROJECT METHODOLOGY
3.1 Project Methodology 28
3.2 Explanation of Flowchart 29
3.2.1 Literature Review and Research 29
3.2.2 Hardware Design and Development 29
3.2.3 Software Design and Development 29
3.2.4 System Integration 30
3.3 SK40C 32
3.4 Temperature and Humidity Sensor 33
3.5 Cytron BlueBee Module 35
3.6 Pin Connection to SK40C 37
3.7 Microsoft Visual Basic 2010 38
3.8 Proteus VSM 7.1 SP2 39
3.9 Micro C Pro for PIC 40
3.10 Pic Kit 2 41
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IV RESULT AND DISCUSSION 42
4.1 LM35 Analogue Temperature Calibration 42
4.2 Cytron Humidity Analogue Sensor Calibration 45
4.3 Programming using MicroC Pro for PIC 47
4.3.1 LCD Connection 47
4.3.2 ADC Module Programming 48
4.4 Simulation using Proteus 52
4.5 Hardware Implementation 53
4.6 Visual Basic Implementation 54
VI CONLUSION AND RECOMMENDATION 57
5.1 Conclusion 57
5.2 Recommendations 58
REFERENCE 59
xii
LIST OF GRAPHS
NO TITLE PAGE
4.1 Temperature vs. Time 44
LIST OF TABLES
NO TITLE PAGE
2.6 Product Comparison 8
2.9.2 Bluetooth Classes 24
2.9.3 Difference between Bluetooth and ZigBee 26
4.1 Temperature Analysis 44
4.2 Humidity Reading 45
xiii
LIST OF FIGURES
NO TITLE PAGE
2.3 Madge Technology Wireless Data Logger 6
2.4 Dickson Data TP125 7
2.5 Pico Tech VACQ Temperature and Humidity 8
2.7.3 Humidity Sensors 12
2.8 Schematic Diagram of a Microprocessor Based System 14
2.8.1 Schematic Diagram of a Microcontroller Based System 15
2.8.2 Difference between Microprocessor and Microcontroller 16
2.8.3 Parameters for 16F877A 18
2.8.4 Parameters for 16F887A 18
2.9.1 Collection of Piconet and Scatternet 22
3.1 Flowchart of Wireless Data Logger 29
3.2 Basic block diagram of Wireless Data Logger System 31
3.3 SK40C 32
3.4 LM35 34
3.4.1 Cytron Humidity Sensor 35
3.5 Cytron BlueBee Module 36
3.6 PIN Connection to SK40C 38
3.7 Microsoft Visual Basic 2010 39
3.9 MicroC Pro for PIC 41
3.10 Pic Kit 2 42
3.10.1 UIC00B 43
4.2 Simulation using Breadboard 46
4.3 LCD pin 47
4.3.1 LCD coding using MicroC PRO for PIC 48
xiv
4.3.2 ADC coding part. 50
4.4 Simulation in Proteus 52
4.5 Wireless Data Logger Module 53
4.6 Wireless Data Logger Form 54
4.6.1 Choosing the Com Port and Baud Rate 55
4.6.2 Error Message 55
4.6.3 Reading Temperature and Humidity Values 56
4.6.4 Spreadsheet data 56
LIST OF APPENDIX
NO TITLE PAGE
A1 MICROCONTROLELR SOURCE CODE 59
A2 VISUAL BASIC SOURCE CODE 63
xv
LIST OF ABBREVIATIONS
SD - Secure Digital
PIC - Peripheral Interface Controller
CPU - Central Processing Unit
DIP - Dual Inline Package
IC - Integrated Chip
EEPROM - Electrically Erasable Programmable Read-Only
Memory
PWM - Pulse Width Modulation
USART - Universal Asynchronous Receiver/Transmitter
MSSP - Master Synchronous Serial Port
I/O - Input/output
SPI - System Packet Interface
CLK - Clock
SCLK/SCK - Serial Clock
CMD - Command
CS - Chip Select
MOSI - Master Out Slave In
MISO - Master In Slave Out
ANSI - American National Standards Institute
IDE - Integrated Drive Electronics
ADC - Analog-to-Digital Converter
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CHAPTER I
INTRODUCTION
1.1 Project Introduction
Wireless Data Logger is a device which enables collection of particular data
from distinguished sensor to be sent to a personal computer or a laptop via wireless
transmission medium. In this project this device incorporates the use of Bluetooth
with the range of 30m indoor and 100m line of sight outdoor to send the information
from time to time to a data logging framework software. Moreover the device as well
will be included with Liquid Crystal Display (LCD) panel to provide real time
monitoring of temperature and humidity on the device as well. The information
collected as well will be compiled into a spreadsheet with the help of the data
logging framework software. Typically data logger is battery powered and includes a
sensor, microprocessor, wireless medium and computer interface.
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1.2 Project Objectives
The main objectives of this project are to design and construct a wireless data
logger which is relatively cheap in cost which is estimated to be around RM250
below with minimizing components to achieve its economical value. Moreover it is
also to use Bluetooth as a module in providing wireless transmission medium to
transmit information to a Bluetooth enabled personal computer. It is also to use
Microsoft Visual Basic software to design a data logging framework which will
collect data wirelessly and convert the data into spreadsheet to be analyzed later on.
1.3 Project Problem Statement
As mention above in the introduction, this system uses wireless
communication system as transmission medium as previous data loggers do require
wired transmission medium to communicate. Nevertheless the development is not
limited until that, whereas extra features can be installed in this project that will
provide a convenience to the user.
By implementing Bluetooth technology allows remotely to access and use
Bluetooth enabled devices without the use of wires. In this case the device can be
moved around easily without the need of altering wires plus with a limited range.
However the Class 2 Bluetooth will be used as it can provide the range of 30m from
the interfacing personal computer or laptop.
Compare to the previous project, the wireless data logger was not included
with real time monitoring. Real time monitoring via LCD as well provide the user
with ease of application. Real time monitoring as well will enable user to determine
whether the device is functioning with perfect as well the information being
monitored on the spot to enable any configurations to be done on the environment by
the user.
This device as well will be featured with temperature and humidity reading
with the help of distinguished sensor. Plus this information will be transferred to a
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personal computer or a laptop with the help of data logging framework thus
converting the information to a spreadsheet for further analysis by user .This project
is being developed with low cost and for simple installation as most already available
data logger in the market are expensive as well as complicated to be used.
1.4 Project Work Scope
On the other hand, for the software part it includes the development of data
logging framework as control panel to receive information via Bluetooth. The
software for the data logging framework will be developed using Microsoft Visual
Basic. Thus as in software the programming of the PIC as well will be done by using
MPLab. Personal computer with enabled Bluetooth will then be interfaced with the
Wireless Data Logger device.
The scope of this project basically divided into two parts which is hardware
and software. For the hardware section, the designing of the wireless data logger
prototype consists of only one type of sensor component which can sense changes in
temperature and humidity , programmable microcontroller (PIC) and Bluetooth
module which need to be configured first before it can transmit information
wirelessly to Bluetooth enabled personal computer or a laptop. The PIC which is
being used is a 16F887 PIC where it is programmed to interface with software. Thus
the designing of it continues with fabrication of the printed circuit board (PCB).
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1.5 Overview
Completely, this report consists of 5 main chapters and there are Introduction,
Literature Review, Methodology, Result & Analysis and Conclusion &
Recommendation. In Chapter 1, the introduction is briefly explained the overview of
the whole project and why it must be implemented in real life. It is highlighting on
the background, project objectives, problem statement, methodology and scope of
work on the operation of wireless data logger. In order to achieve the objective the
methods that have been used in the project are explained in detail in Chapter III.
This chapter also briefly explains the development of the project. It includes the
integration of hardware and software that have been used in this project. Chapter IV
is a Result & Analysis that explained analysis of the circuits. Conclusion &
Recommendation are included in Chapter V whereas it is briefly described the
conclusion of the project and suggestion on how to further improve this project for
the future developer.
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CHAPTER II
LITERATURE REVIEW
2.1 Introduction
This chapter will discuss about the projects backgrounds. Its also includes
some specifications about the market ready product which is related to this project.
2.2 Literature Overview
As explained before there are many kind of products that have functions to
record the measurements features in recording the measurements temperature and
humidity in physical properties. However a data logger which is already in the
market does not come with the features of wireless transmission or real time
monitoring or both altogether. These data loggers are considered design with its own
limitations plus it is also expensive. Plus the products as well come in only
measurement taking sensors which is limited to either only temperature or humidity
reading. The conventional method is that somehow still popular as before but it is not
efficient and provides inaccurate readings.
Based on research online regarding market ready data loggers, the examples
of data logger products are from Madge Technology, Dickson Data Products and
TMI Orion Tech. From each of the manufacturers stated before has been chosen one
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particular product which provides wireless data logging devices to be compared with
each other. Each products will be compared if whether wireless transmission,
temperature and humidity sensing, real time monitoring is included and cheaper than
RM250 or not.
2.3 Madge Technology RFRHTEMP2000A Wireless Data Logger
Figure 2.3: Madge Technology Wireless Data Logger [9]
As refer to Figure 2.3 RFRHTemp2000A is a wireless data logger which
provides the benefit of sensing temperature and humidity with on board display. It is
ideal to be used in industrial sector or laboratory such as like supply chain storage
facilities, incubator monitoring and HVAC studies. It is designed based on RTD
based temperature sensors and external humidity sensor. Moreover the design
provides a fast time response for both parameters. Using the wireless module of
RFC1000 transceiver, to provide customer convenience such in starting, stopping
and downloading is easy wirelessly. This allows customers to quickly access data
and spend less time maintaining the device. Data can be provided in real time back to
a central PC, or the device may be downloaded at periodic intervals. This device
selling price is at astonishing RM1046.50.[9]
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2.4 Dickson Data Products TP125
Figure 2.4: Dickson Data TP125 [8]
Little and basic like the picture indicated in the Figure 2.4, Dickson
information data loggers can measure temperature and dampness which outperforms
in the broadest range of requisitions, administrative agreeability, HVAC adjusting,
warehouse mapping , process control and more. It is modest to situate up, simple to
utilize and electric cell fueled. Dickson's SP/TP arrangement of USB information
data logger set another standard in faultless, simple to utilize, reasonable PC based
recording. Because of their smaller size, rough outline and electric storage device
control they could be set simply about at whatever place. Screen temperature or
temperature and moistness with models that come furnished with either an inner
sensor for perusing air temperatures or both an inward and outside sensor for
perusing temperatures in great situations or difficult to arrive at spots. This gadget
offering cost is at RM 486.[8]
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2.5 TMI Orion Tech Pico VACQ Temperature and Humidity
Figure 2.5: Pico Tech VACQ Temperatures and Humidity [10]
As referred to Figure 2.5, PicoVACQ surely is the most progressed group of
items from Tmi-Orion. The most cutting edge electronic innovations are utilized,
while exhibitions are supported and extents decreased to the most modest data logger
conceivable. Uncommonly intended for clean commercial enterprises, all the models
of this family empower quality control and transform acceptance of sustenance or
drug store businesses. Information transmission with the utilization of USB link
interfaced with particular machine. This gadget advertising cost is at RM 512.[10]
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2.6 Comparison between the Market Ready Data Loggers
Table 2.6: Product Comparison
As we can refer to the product comparison table 2.6, can be concluded that
the cost is more than RM250 which is considered expensive. Moreover two of the
products are not included with wireless transmission to transfer logging data but need
to be wired in order to interface it with personal computer. It can be seen also that
more features a product is developed with more higher the price of the device.
Products Wireless
Transmission
Temperature
Sensing
Humidity
Sensing
Real Time
Monitoring
(LCD)
Cost
< RM250
RFRHTEMP2000A
TP 125
Pico VACQ
