Home Automation using Wi-Fi Interconnection

International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395 -0056
Volume: 04 Issue: 03 | Mar -2017 www.irjet.net p-ISSN: 2395-0072
© 2017, IRJET | Impact Factor value: 5.181 | ISO 9001:2008 Certified Journal | Page 2542
HOME AUTOMATION USING Wi-Fi INTERCONNECTION
R.Aravindhan1, M.Ramanathan2, D.SanjaiKumar3, R.Kishore4
1 Student, Department of Mechatronics engineering, Chennai Institute of Technology,
Anna University Chennai, Tamil Nadu, India- 600069
2 Student, Department of Mechatronics engineering, Chennai Institute of Technology,
3Student, Department of Mechatronics engineering, Chennai Institute of Technology,
4Assistant Professor, Department of Mechatronics engineering, Chennai Institute of Technology,
-----------------------------------------------------------------------------------------------------------------------------------------------
Abstract: Automation is a technique or a system of
controlling a process by electronic devices with reducing
human involvement to a minimum. This report presents
a design of monitoring and controlling home automation
system from an android application based on Arduino.
This system uses Wi-Fi technology as a communication
protocol to connect system components. Home
automation system consists of two main components;
the first part is android application that can give orders
to units that one wishes to control by locally or remotely
and the second part is Arduino that has an appropriate
interface to sensors and appliances of a home
automation system and communicates with an android
application through wireless technology. The
Automation system can have a vital role in reducing the
total energy consumed by home appliances. The main
objective of home automation is to help handicapped and
old aged people who will enable themselves in
controlling home appliances.
Keywords: Arduino, ESP8266 Wi-Fi module, Light Control,
Temperature Control.
INTRODUCTION
The home automation systems are gaining
popularity day by day due to their ease of use and
wide operations capabilities. Some require home
automation system to satisfy their needs and
comfort while for physically challenged people it
can provide great assistance. There have been
several researches and developments on the home
automation systems. In the present times, we can
find most of the people clinging to their mobile
phones and smart devices throughout the day.
Hence with the help of his companion – a mobile
phone, some daily household tasks can be
accomplished by personifying the use of the mobile
phone. To develop an Automatic Control system
that helps in controlling the devices connected to it,
with the help of Wi-Fi interconnection. To ease the
way of accessing the devices in controlling it, and
maintaining the proper log of the data which the
device senses. To develop a system which would be
very useful for handicapped persons in doing works
on their own without seeking any help.
1.1 EXISTING SYSTEM
The literature related to the research topic has been
reviewed for last twenty years in order to find out
work
carried out by various researchers. There are many
systems for remote monitoring and control
designed as commercial products or experimental
research platforms. It is noticed that most of the
research carried out belongs to the following
categories
A. Internet based Monitoring using Servers,
GPRS modems, etc. with different
approaches.
B. GSM-SMS protocols using GSM module
individually or in combination with Internet
Technologies.
C. Wireless Monitoring using Bluetooth, Wi-Fi,
Zigbee and RF.

Fig.1.1 Circuit diagram
Fig.1.2 Block diagram
The entire appliance attached to relay are
controlled by Microcontroller.
ESP8266 is a Wi-Fi module interface to
Microcontroller for wireless communication.
1.2 PROBLEM IDENTIFICATION
DUE TO WIRING: connection of the devices is set
through wires which reduces the speed in data
transfer and also if there is any cut in the wires, it’s
not so easy to identify for a longer connection.
SLOW DATA TRANSFER: transfer of data is very
slow in process and it takes time for performing
any action.
CONNECTIVITY PROBLEM: connectivity methods
like Bluetooth, radio frequency and zig-bee has a bit
short range for the connection to be enabled.
SLOW PROCESSING: only a single board is used in
connecting all the devices which makes it slower in
terms of processing the data and also only one
process could run at a time.
PROPOSED SYSTEM
a) The proposed system is based on the
interconnection between Wi-Fi modules in
which the client wifi modules will be
connetected to the station wifi module
which will be giving commands through the
smart phone which is connected to the
same as an external device, will have
priority in giving instructions and
extracting work over them, works in
master-slave principle.
b) There won’t be any relay connections
between the devices which helps in
reducing the time required in data transfer
and loosing of data.
c) There would be a continuous monitoring of
data that is being transferred and also
generating a log out of it.
d) Mobile application is being developed for a
user friendly interaction between the user
and the devices.
e) The whole system is wireless, so there
won’t be any loss in data at maximum and
also there won’t be any problem due to
wiring.
Fig.2.1 Block diagram

2.1 EXPERIMENTAL SETUP
Fig.2.2 Hotspot Device (Station)
Fig.2.3 Temperature control Device (Client)
Fig.2.4 Light control Device (Client)
2.2 EXPERIMENTAL PROCEDURE
i. Design and implementation of the
Temperature Control device, Light Control
device and Access point device with the use
of Wi-Fi module for interconnection.
ii. Using AT commands in the Wi-Fi module
ESP8266 and modifying it as an access point
for one Device.
iii. For the rest of the Device, modifying the
module ESP8266 as node for both
transferring and Receiving the date.
iv. Developing an application that is suitable
for the android device which will be able to
control the Devices by connecting it to the
access point Device and giving away the
command for the operation to be
performed.
RESULT
The future smart homes have many complications
and thus a new technology is being introduced in
recent times, hence people automate their own
works or duties. In this paper, instead of using
relays, Wi-Fi
is used for communication and integrating all the
devices in wireless mode. It makes the transfer of
data faster and the processing of data much faster
than other technology. This system is mainly
proposed for the old aged and dis-abled people for
doing their very own domestic works.
CONCLUSION
Home automation system will bring more
convenience and comfort to people’s life. The
android-based smart home application
communicates with the Wi-Fi module ESP8266
which acts as an access point. Using android
application user could control and monitor the
smart home environment. Arduino provides an
economic and efficient platform to implement the
smart home automation system. This system can be
used to communicate with many numbers of
devices. It minimizes the wastage of electricity and
it consumes less time, also it helps the old aged and
dis-abled people in doing the basic domestic works
on their own.
REFRENCES
[1] A.J. Bernheim Brush, Bongshin Lee, Ratul
Mahajan, Sharad Agarwal,Stefan Saroiu, and
Colin Dixon, "Home Automation in the
Wild:Challenges and Opportunities", CHI

2011, May 7– 12, 2011, Vancouver,BC,
Canada
[2] N. Sriskanthan, F. Tan, A. Karande,”
Bluetooth based home automation system” ,
Microprocessors and Microsystems journal,
issue 26 (2002) pages 281– 289, Elsevier
Science B.V., 2002
[3] Malik Sikandar Hayat Khiyal, Aihab Khan,
and Erum Shehzadi, "SMS Based Wireless
Home Appliance Control System (HACS) for
Automating Appliances and Security",
Issues in Informing Science and Information
Technology Volume 6, 2009
[4] D. Greaves, "Control Software for Home
Automation, Design Aspects”
[5] http://esp8266.com
[6] http://arduino.cc
[7] http://arduino.org
[8] http://openhomeautomation.com
[9] http://instructables.com

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