The main objective of this project is to develop a home application system using an Arduino board with Bluetooth being remotely controlled by any Android OS smart phone. As technology is advancing so houses are also getting smatter

1. HOME APPLIANCES CONTROLLING USING
ANDROID PHONE VIA BLUETOOTH
TEAM MEMBERS
SIDDULA GAYATHRI (20211A0289)
YERROLA JIMMIE LAZERS (20211A02A1)
NADIKOPPU MANOJ KUMAR (21215A0212)
PROJECT GUIDE
Dr K
VIJAY BHASKAR REDDY
M.tech, Ph.d , Professor
Department of Electrical and Electronics Engineering
B V Raju Institute of
Technology

2. ABSTRACT
• The main objective of this project is to develop a home application system using
an Arduino board with Bluetooth being remotely controlled by any Android OS
smart phone.
• As technology is advancing so houses are also getting smatter.
• Remote controlled home automation system provides a most modern solution
with smart phones.
• By touching the specified location on the GUI ,the loads can be turned ON/OFF
remotely through this technology. The loads are operated by Arduino board
through Opto- isolators and thyristors using Triacs.
• A user can program the system to trigger events under explicit conditions there
by controlling energy at home.

3. PROBLEM STATEMENT
• Affordability of smart phones had made majority of people to be attached to
their phones. A mobile phone has become an inseparable part of human life
which is an opportunity for us to take this Advantage to manage power usage at
home and provide convenience to users by integrating it in smart home.
• Countries like Zimbabwe, Bangladesh, South Sudan are suffering from power
shortages which resulted in serious inconvenience to the socio-economic growth.
• As a nation, there is a need to look for ways to control and manage available
power together with load shading.
• People tend to forget to switch off their electrical gadgets while leaving their
homes and hence there is need to control appliances from afar.

4. • With just a click on your phone you can save energy.
• With this type of systems in place, and embracing affordable smart phone users
can save their time and have a greater experience of enjoying the benefits of IoT.
• Not only this, this project will aslo be helpful for the physical handicapped persons
and aged persons those who can operate smart phones, makes them to control
their home appliances by ease .

5. PROJECT AIM
To solve the problems met, we design a prototype of a home
automation lightning system that can be remotely switched ON/OFF by an
android application.

6. Components required
Hardware Requirements
1. Arduino uno
2. Bluetooth Module (HC - 05)
3. 4 – Channel Relay Module
4. jumper wires
5. Loads (like Bulbs, Fans, etc.)
6. Power supply (Battery )
7. Connecting wires.
Software Requirements
1. Arduino IDE
2. Android application installed on users Android Device.

7. BLUETOOTH
MODULE (HC -05)
RELAY MODULE
4 - CHANNEL

8. BLOCK DIAGRAM

9. CIRCUIT DIAGRAM

10. WORKING
• In this project, a Bluetooth module is interfaced to Arduino uno. This
Bluetooth module receives the commands from the Android devices,
using wireless communication (Bluetooth technology).
• The program which is written to the Arduino uno communicates with
Bluetooth module serially to receive the commands.
• Microcontroller switches the electrical loads automatically based on
the commands received from the Bluetooth.

11. • An Android application should be installed in users mobile or tablet to control the
electrical loads.
• Using this Android application user can send the commands to the Bluetooth
module to control the electrical loads.
• It can also be called as “Bluetooth Controlled Electronic Home Appliances” or
“Android based Home Automation system ”.

12. CODE
• char val; void setup() { pinMode(13,OUTPUT); pinMode(12,OUTPUT);
pinMode(11,OUTPUT); pinMode(10,OUTPUT); Serial.begin(9600); digitalWrite(13,HIGH);
digitalWrite(12,HIGH); digitalWrite(11,HIGH); digitalWrite(10,HIGH);
• } void loop() { if(Serial.available()){ val = Serial.read(); Serial.println(val); } if(val=='1'){
digitalWrite(13,LOW);
• } else if(val=='2'){ digitalWrite(13,HIGH); } if(val=='3'){ digitalWrite(12,LOW);
• } else if(val=='4'){ digitalWrite(12,HIGH);
• } if(val=='5'){ digitalWrite(11,LOW);
• } else if(val=='6'){ digitalWrite(11,HIGH);
• } if(val=='7'){ digitalWrite(10,LOW);
• } else if(val=='8'){ digitalWrite(10,HIGH);
• }
• delay(100);
• }

13. CHALLENGES
• MECHANICAL CONSTRAINTS.
• How to build the model to be robust, balanced, reliable and safe.
• COMPONENTS CONSTRAINTS.
• Problem of uploading the code to the arduino uno.
• The working of some components such as relays which damages
beyond 7 amperes .
• MONEY CONSTRAINTS.

14. CONCLUSION
• The system as name indicates “Home Automation” makes the system more
flexible and provides attractive user interface compared to other home
automation systems.
• Finally , the proposed system is better from the scalability and flexibility point of
view than the commercially available home automation system

15. • The range of this bluetooth controlled home automation is around 30
feet.
• It takes around hardly a week to compete this prototype.
• The budgect required to complete this project is around 2500 rupees.

16. REFERENCES
• https://create.arduino.cc/projecthub/Shubhamkumar97/home-
automation-using-arduino-and-bluetooth-control-404e9c
• https://techatronic.com/home-automation-using-arduino-and-
bluetooth/