A smart home uses internet-connected devices to allow homeowners to remotely monitor and control home appliances and systems. This provides increased security, convenience and energy efficiency. Homeowners can control lights, thermostats, locks and security cameras using a smartphone app. While smart homes provide benefits like remote access and automation, they also present challenges such as complex installation, compatibility issues, and cybersecurity risks. The project aims to build a low-cost wireless home automation system that can be controlled by smartphone to help elderly or disabled users operate devices.

1. Introduction
The past decade has seen significant advancement in the field of
consumer electronics. Various “intelligent” appliances such as cellular
phone, air conditioners, home security devices, home theatres, etc.,
are set to realize the concept of a smart home

2. Smart Home
A smart home is a house that uses devices connected via the internet to
allow for remote monitoring and management of appliances and
systems

3. Home Automation
Smart home technology, also known as home automation provides
homeowners with added security ,convenience,and energy efficency.

4. It can give homeowners more peace of mind by enhancing security
systems, allowing them to control smart devices simply with an app on
their smartphones or other network devices

5. Smart homeowner can control lighting system remotely,schedule and
monitor thermostates,grant or deny home access through smart
locks,check in on security cameras and even brew coffee remotley

6. PROBLEM STATEMENT
While people are pursuing ever-growing high quality of their lives
today. This leads to more and more facilities and home appliances
poured into their buildings. How to control and manage these versatile
facilities and appliances in a house?

7. PROBLEM STATEMENT
Usually conventional wall switches are located in different corners of a
house and, thus necessitate the need of manual operations like
pressing to turn the loads on or off. It becomes very difficult for the
elderly or physically handicapped people to operate them. How to help
them?

8. OBJECTIVE
• To construct a wireless home automation system controlled by a
smartphone specifically an android device.
• To design and implement cost effective home automation system yet
an efficient one.
• To design a user friendly and a safe system to control home
appliances especially aimed to aid the elders and handicapped.

9. Components used
Hardware Software
a) Arduino UNO R3 a) Arduino IED (windows)
b) Relays Module b) Smart Home (android)
c) Bluetooth Module HC-05
d) Android Smart phone
e) Laptop
f) Bulbs
g) Butten Holder
h) Power adapter
i) Plywood Board
j) Connection wires
k) Jumper wires

10. Block Diagrame

11. Schematic Diagrame

12. Programe Used (only for 2 load control)
char var;
void setup() {
Serial.begin(9600);
pinMode(2, OUTPUT);
pinMode(3, OUTPUT);
pinMode(4, OUTPUT);
pinMode(5, OUTPUT);
}
void loop() {m
while (Serial.available() == 0);
var = Serial.read();
Serial.println(var);
if(var == '1')
{ Serial.println("Load 1 is On");
digitalWrite(2, HIGH);
}
else if (var == '2')
{ Serial.write("Load 1 is OFF");
digitalWrite(2, LOW);
}
if(var == '3')
{ Serial.println("Load 2 is On");
digitalWrite(3, HIGH);
}
else if (var == '4')
{ Serial.write("Load 2 is OFF");
digitalWrite(3, LOW);
}
else Serial.println("Invalid!!");
Serial.flush();
}

13. Advantges of Smart home
I. Convenience:
Remote Access: Users can control various devices and systems remotely using smartphones or
tablets.
Automation: Smart home systems allow for the automation of routine tasks, such as turning off
lights, adjusting thermostat settings, or locking doors at scheduled times.
I. Energy Efficiency:
Smart Lighting: Lighting systems can be automated and optimized for energy efficiency, turning off
lights in unoccupied rooms or adjusting brightness based on natural light conditions.
I. Security:
Smart Cameras: High-resolution cameras with remote monitoring capabilities enhance home
security. Users can receive alerts and view live footage from their smartphones.
Smart Doorbells: Video doorbells allow users to see and communicate with visitors remotely, adding
an extra layer of security.

14. Disadvantges of smart home
Complexity:
Installation and Setup: Setting up a smart home system may require technical expertise, and the
complexity of integrating different devices may be overwhelming for some users.
Compatibility Issues: Devices from different manufacturers may have compatibility issues, requiring
users to invest time in finding and configuring solutions.
Cybersecurity Risks: Smart devices may be susceptible to hacking, posing a risk to user privacy and
data security.
Cybersecurity Risks: Smart devices may be susceptible to hacking, posing a risk to user privacy and
data security.
Data Privacy: The collection and storage of personal data by smart home devices raise concerns
about how that data is used, shared, and protected.

15. Conculsion
The project designed is very practical in nature because everything can be controlled with the help
of just a mobile phone which is widely available nowadays and also proves to be handy.
Also the project is feasible because the cost of the project is very less as compared to the expensive
Wi-Fi based home control systems presently available in the market which require an additional cost
of internet services.