Home automation system using arduino with android

M.E.S ABASAHEB GARWARE COLLEGE, PUNE
ELECTONIC SCIENCE DEPARTMENT
HOME AUTOMATION SYSTEM USING ARDUINO
AND ANDROID
GRADUATION PROJECT
2017/2018
Made by
Rahul Takalkar
Pranav Gayal
Supervised By: Dr. Rajendra Rajuskar

ACKNOWLEDGEMENT
In performing our assignment, we had to take the help
and guideline of some respected person, who deserve our
greatest gratitude. The completion of this assignment
gives us much pleasure. We would like to show our
gratitude
DR.RAJUSKAR, M.E.S ABASAHEB GARWARE COLLEGE,
PUNE
For giving us a good guideline for assignment and also
MR.RAVI GAVADE, T.Y.B.sc ELECTRONIC SCIENCE
For all your help.
We would also like to expand our deepest gratitude to all
those who have directly and indirectly guided us in
showing this assignment.

Abstract
The aim of this project is to design and implement a home automation system
that controls and organizes various home appliances. The user (i.e. home
owner) controls his home appliances using his smart phone. The home
automation system processes user direct commands, user preferences and
data received from various sensors to control home appliances.
The project is implemented in hardware and software components that
interact through network connections. The main challenge is to implement the
project in an economical way such that it can be easily deployed and used by
homeowners.
An Arduino microcontroller and a mobile phone with an Android platform
running on top of it are the hardware and software used. For the network
part, an apache local server is used to make a connection between the
microcontroller and the mobile phone and allow data transfer to take place in
an efficient matter.
Different functions are implemented using this system which includes the
following:
Manually controlled by smart phone application:
1. Open and close garage door.
2. Switch fan on/off.
3. Switch water tank motor on/off.
4. Switch led on/off

USER REQUIREMENTS AND DESIGN
User’s requirement to control the following manually through smart phone:
1. Open and close garage door.
3. Switch water tank motor on/off.
4. Switch led on/off.
User’s requirement to control the following automatically through
microcontroller:
6. Switch motor on/off .
7. Switch outdoor led on/off .
The following graph summarizes how data from the sensors are displayed on
Lcd.
Android sends the data.
Arduino controls the lcd .
Arduino receives the
data serially
The data is displayed on the
lcd.

The following graph summarizes how data from the smartphone are read on the Arduino.
Fig. android to Arduino summary
Commands from the
smartphones are
sent to HC-05
Arduino accepts the
data and update the
database
Arduino reads data
from database
According to the data,
Arduino perform
different functions

CIRCUIT DIAGRAM
.
Commands from

advantages of using Android.
 Using Android we can access core mobile device functionality.

 Easy development since it contains SDK, which provides build, run and debugging
Android applications.


Disadvantages of using Android.

 It does not assure security for application as the source code is available.

 Android requires internet connection to be active[11].
Bluetooth
Bluetooth is a wireless technology standard for exchanging data over short distances (using
short-wavelength) from fixed and mobile devices, and building personal area networks
(PANs).
Advantages of Bluetooth:
 Cheap.
 Easy to install.
 It makes connecting to different devices convenient.
 It is wireless.
 It is free to use if the device is installed with it.
Disadvantages of Bluetooth Technology:
 It can be hacked into
 If installed on a cell phone it is prone to receiving cell phone viruses.
 It only allows short range communication between devices.
 It can only connect two devices at once.
 It can lose connection in certain conditions. [14]
20

Bluetooth Wi-Fi
Devices keyboards, office and
computers, servers, TV, Latest
mobiles.
industrial automation
devices.
Hardware Bluetooth adaptor on all the Wireless adaptors on all the devices of
requirement devices connecting with the network, a wireless router and/or
each other. wireless access points
Range 5-30 meters With 802.11b/g the typical range is 32
meters indoors and 95 meters (300 ft)
outdoors. 802.11n has greater range.
2.5GHz Wi-Fi communication has
greater range than 5GHz. Antennas
can
also increase range.
Power Low High
Consumption
Ease of Use Fairly simple to use. Can be It is more complex and requires
used to connect up to seven
configuration of hardware and
software.
devices at a time. It is easy
to switch between devices or
find and connect to any
device.
Latency 200ms 150ms
Bit-rate 2.1Mbps 600 Mbps
Table 3 wifi and bluetooth comparison

Android side:
Switch to control the led on
Shows temperature reading
Shows light intensity reading
Shows water level reading
Switch to select manual or automatic mode
Switch to control the fan on
Switch to control the garage door on
Switch to control the water pump on
Figure 17 shows the startup of
the application
“F” indicates LED is on
Figure 18 shows the LED switch
button when pressed
27

“T” indicates manual
control mode
Figure 19 shows how to
toggle manual mode
“ON” indicates the fan is on
Figure 20 shows
how to toggle
fan swicth on
and off
28

Conclusion.
The project is implemented in hardware and software components that interact through
network connections. The main challenge is to implement the project in an economical
way such that it can be easily deployed and used by homeowners.
The data is collected from sensors by the Arduino. Arduino microcontroller is
connected to the LAN with Ethernet shield. The configuration of the Arduino for
Ethernet shield contains a static IP address for the shield and the local server.
Arduino via the shield sends data every 5 seconds (can be adjusted) to the server via a
URL using Get method. Server accepts the data and updates the database in the right
columns and through in the same time gets the manual/automatic command with other
switch status from the correct columns too.
The smartphone reads data from the server using JSON method to get sensor values
and display them on screen and updates the switch columns on the database if the user
has clicked on them.
Limitations and future work.
The project has few limitations that as follows:
1. The system is vulnerable to the different types of attacks.
2. Hardware limitation i.e. Arduino UNO have low performance and low number
of pins
3. The need of a laptop as local server
4. There must be an internet connection on the router.
5. Low range of connectivity i.e. we can’t connect outside the range of LAN.
For future workwe suggest the following upgrades:
1. To add the security mechanisms such as the authentication in the mobile phone and
making an access list on the database to prevent any unauthorized access. Data must be sent
encrypted every time in a different key through the network to prevent the sniffing and
replay attacks.
2. To get feedback from ON/OFF switches.
3. Schedule a plan for electronic devices selected by the user to control children usage for
example computers and TV.
4. Schedule a plan for electronic devices selected by the user to control air conditioners and
washing machines.
5. Implement fire detection system and turning off the power in case of emergency and
notify the user on his smartphone.
6. Alert the user the gas jar emptyor a gas leakage is detected.

Home automation system using arduino with android

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