Design

UNIVERSIDAD DE MANILA

College of Engineering and Technology

HOME AUTOMATION: AUTOMATIC SWITCHING ON/OFF USING MOBILE PHONE

_____________________________________________________________________

Prepared by:

Canales, Rose Anne N.

Cruz, Justine Rocel A.

Pascua, Ronnabelle P.

Halili, Christine D.

Galang, Shaldy T.

Gutib, Erving B.

CHAPTER 1

THE PROBLEM AND ITS BACKGROUND

A. INTRODUCTION

Devices are sometimes left plugged into power sockets whereas others

are supposed to be plugged into and out of power sockets at different

intervals depending on the time of the day. All these require an individual to

manually attend to each of the devices independently from time to time. To

solve these types of problems this article explains you how to design a simple

circuit, which will on/off the devices remotely using mobile phone.

Have you ever imagined yourself turning ON/OFF your appliances while

you are just sitting on your couch or while you are resting on your bed? Do

you ever think of switching your appliances with just a touch of your finger?

Does it come into your mind of using your Smartphone as your remote

control? If that is the case, then, you are imagining of home automation or

simply Smart home. Generally, home automation is the control of any or all

electrical devices in our home. It is also refers to the use of computer

and information technology to control home appliances and features (such as

windows or lighting). It may include centralized control of lighting, HVAC

(heating, ventilation and air conditioning), appliances, and other systems, to

provide improved convenience, comfort, energy efficiency and safety. The

popularity of home automation has been increasing greatly in recent years

due to much higher affordability and simplicity through Smartphone and tablet

connectivity.

This proposal focuses mainly on automatic switching ON/OFF of

appliances. The project is developed using a Dual Tone Multi-Frequency

(DTMF) communication. If you press the button in your mobile phone then a

tone is generated with 2 frequencies. These 2 frequencies of the tone are row

and column frequencies of that particular button. These generated tones are

decoded at switching center to determine which button is pressed. Now we

have to use this DTMF tones to control the devices from remote area.

B. STATEMENT OF THE PROBLEM

One of the problems that have been cited is the inconvenience of the

disabled and elderly people. Inconvenience in terms of attending to the

appliances just to plug and/or unplug it using their own hand. Doing those

kind of things may sometimes cause more trouble due to their impairment.

Fast-paced technology which some elderly people do not know how to use

that brings inconvenience to their living. Other problems are fire which is at

times due to overheating of devices that lessens the level of safety inside

your home and high electric cost through continuous power consumption of

unplugged appliances that limits the allocation of your money. With these

issues, they then decided to propose remote control appliances using mobile

phones which will enable one to remotely switch and manage his appliances

from a specific range inside or outside his home.

C. OBJECTIVES

The main purpose of this project is to develop home automation

specifically automatic switching ON/OFF of appliances. In this project, they

will be able also to:

i. Help elderly and handicapped people to be more comfortable when

plugging or unplugging home appliances. This will likely give less

hassle to their impairment,

ii. Design cost efficient and improved safety system. Fire due to

overheating of plugged appliances may be lessening as well as the

high cost of electric consumption.

iii. Provide an easy-to-use environment. The application that is used in

this project is easy to operate by pressing the assigned key for turning

on and/or off the appliances.

D. SIGNIFICANCE OF THE STUDY

Today, automation technology is gaining more recognition among the

people not just for home modification but in industrial and business sectors

too. Home automation technology is constantly improving its flexibility by

incorporating modernized features to satisfy the increasing demand of the

people. We live in a time unlike any other. With so many technological

advancements at our fingertips, our lives are made easier, which fortunate is

considering the fast-paced lives most of us lead. In recent years, great strides

have been made in making homes a bit more “tech savvy.”

Equipment and other electric powered gadgets, such as home appliances

and lighting are all instantly switch and people do not need to have a hand on

it. Modern houses are gradually shifting from conventional switches to

centralized control system, involving remote controlled switches. Presently,

conventional wall switches located in different parts of the house makes it

difficult for the user to go near them to operate. Even more it becomes more

difficult for the elderly or physically handicapped people to do so. Wireless

switching of appliances provides a most modern solution with smart phones.

There are many factors that are responsible for home automation's

growing importance. Some important benefits of home automation are listed

below:

a. Affordable: Home automation process doesn't require a huge sum of

money to modify your home. This is one of the important reasons for

its growing popularity among the homeowners. You can save a lot of

money if you plan to automate your home during its construction

process.

b. Easy to use: You can operate and access the automation technology

with ease due to its simple procedures that are easy to learn and

implement. Centralized control system is used to control the overall

operations of different equipment, which ultimately reduces your

burden and allows you to operate the devices with a single button click.

c. Enhanced performance: Proper wiring and computer control are the

important factors that determine the effective performance of the

automation technology. Usually, home automation systems that are

installed using professional installers are reliable and perform all its

operation effectively without causing frequent failures.

d. Improves the security features: One of the important uses of home

automation technology is that its ability to enhance the security

features of the home without demanding a huge home renovation. For

example, you can monitor the entire security systems by making use of

video surveillance system. Besides, you can use motion detector to

detect even the slightest movements around your home without the

need for wandering.

e. Safe: Automation systems are installed carefully and are integrated

under one centralized control unit, which ultimately secures the people.

f. Energy saving: By controlling temperature and lighting based on the

programmed schedules, automation systems reduce the energy bills

considerably. Now, you can move to distant places without any worries

regarding your energy bills by making use of automation systems.

The key value of the smart home will be in situations that can help to

make people’s lives easier. Smart homes have the potential to improve the

accessibility of technology, allowing users to control aspects of a room

through their devices. Rather than encouraging laziness, if employed

properly, this can provide help for both individual users and organizations.

Indeed, many of the current deployments of connected technology are in

homes for people with accessibility needs. Another setting we can see 'smart

home' technology being valuable in is hospitals: patients could control their

beds and the temperature in their room all through their Smartphone, a device

they are already comfortable with as opposed to an unfamiliar remote control.

Systems can range from simple remote control of lighting through to complex

computer/micro-controller based networks with varying degrees of intelligence

and automation. Home automation is adopted for reasons of ease, security

and energy efficiency

E. SCOPE AND LIMITATION

Scope

1. DTMF communication instead of using microcontroller.

2. It can control devices in a long distance.

3. It avoids wastage of power.

Limitations

1. Security is not provided, anyone can control the automation.

2. Limited number of loads that can be connected.

F. DEFINITION OF TERMS

Automatic

It means having controls that allow something to work or happen without

being directly controlled by a person

Automation

The technique of making an apparatus, a process, or a system operates

automatically.

Device

A Device is a specific electronic product that can be controlled through

the wireless network. The device can be a local wireless controller, which

controls a specific light or appliance (usually connected to it by mains wiring),

or a sensor that provides input to the network. Each Device is seen as a

network Node.

Home Automation

All aspects of adding switch to your home and appliances. It can be as

simple as adding remote switch to a few lights, or creating a more complex

system that includes automatic sensors and security systems.

LED

Stands for Light Emitting Diode. These modern light bulbs use very little

power - typically 10% of the traditional incandescent bulbs.

Network

Two or more devices connected together is called a Network. This

enables devices to be switched and to communicate with each other. For

home automation we typically refer to a Wireless Network as a Network.

“Tech savvy”

Tech savvy means knows more about modern technology, especially

computer.

Wireless Network

A Network on which the devices communicate wirelessly using radio

waves (RF). Wi-Fi, Lightwave RF, Z-Wave and ZigBee are all wireless

network technologies.

CHAPTER 2

REVIEW OF RELATED LITERATURE AND LIMITATIONS

This chapter will explain about the review of the works and studies from

other researchers that were related to the development of this project, which

is “Home Automation: Automatic Switching ON/OFF using Android phone via

Bluetooth”. The literature review is a continuous part that should be done until

this project is successfully developed.

A. LITERATURE

A smart home is a "home equipped with lighting, heating, and electronic

devices that can be controlled remotely by a Smartphone or computer". Home

automation used to be something of a science fiction concept, as we can see

from Microsoft’s amusing 90s vision of the smart home. But now that

technology has advanced, home automation is actually happening. We can

now control our TVs and set-top boxes from our phones or tablets, control our

lights using Bluetooth-enabled devices. Apps are at the center of helping to

control our homes, allowing us and our homes to be smarter and better

connected.

When people think about home automation, most of them may imagine

living in a smart home: One remote controller for every household appliance,

cooking the rice automatically, starting air conditioner automatically, heating

water for bath automatically and shading the window automatically when night

coming. To some extent home automation equals to smart home. They both

bring out smart living condition and make our life more convenient and fast.

People at that time understood that a smart home is not owing to how well it

is built, not how effectively it uses space, not due to how it is environmentally

friendly. It is only because of how interactive technologies that it contains.

Those are still useful rules for home automation technology today. Below are

some related studies about the home automation using different processes to

make a better smart home.

B. FOREIGN STUDIES

The content of this section is from the research paper work written by

Abdurrahman Bin Suratman. Bachelor of Electrical Engineering. (June 2014).

“Android Smart Switch for Smart Home”. Universiti Teknologi Malaysia.

B.1. Related Study

Generally, Smart Switch system for Smart Home is developed consists

of two major parts that are smart switch device and access point. This

device is connected to electrical appliances that can be controlled using

sensor and remotely controlled through access point.

B.1.1. Wireless Switch in Smart Home Application

This research paper work is written by Mohd Ridzuan Bin Johary,

Bachelor of Electrical Engineering (Microelectronics), Universiti

Teknologi Malaysia, June 2012. In this research, the project used

PIC18F4620 microcontroller as a main controller device of a remote

control system and PIC16F628A microcontroller for a smart switch

device as shown in Figure 2.1 and Figure 2.2. The communication

system between two devices is the radio frequency (RF) with operating

frequency 315 MHz. The performance of the system is depends on the

distance between smart switch and remote control device. The

weakness of this project is the switch can only be switched “ON” and

“OFF” by using only single controller and cannot been turn “ON” and

“OFF” manually without the controller. The smart switch that has been

developed by researcher is shown in Figure 2.1 and Figure 2.2.

Figure 2.1: Smart switch device

Figure 2.2: The main controller of remote control

B.1.2. Smart Switch Energy Saving For Lighting System

This research paper work is written by Nor Khairunnisa Binti Sidek,

Bachelor of Engineering (Electrical), Universiti Teknologi Malaysia,

July 2012. The type of sensors use for smart switch was studied in this

work. In this research, the project used PIC 18F8452 microcontroller

and GP2Y0A21YK infrared sensor to develop a smart switch as shown

in Figure 2.3 and Figure 2.4. The performance of this smart switch

depends on the range of the infrared sensor. Figure 2.5 shows the

performance of the infrared sensor on smart switch against the

people’s height because the infrared sensor was located above a door

to trigger the motion of people come through that door. Figure 2.4

shows the infrared sensor used, is quite expensive to implement and it

did not use a communication system to control the smart switch

wirelessly.

Figure 2.3: PIC 18F8452 microcontroller

Figure 2.4: GP2Y0A21YK infrared sensor

Figure 2.5: The graph sensor against the people’s height

B.1.3. Home Automation Using GSM

This research paper work is written by Carelin Felix and I. Jacob

Raglend Member, IEEE (2011). In this research paper the

communication system between all appliances in the house into a

single communication device has been studied. This project used PIC

microcontroller for both appliances and communication device as

shown in Figure 2.6 and Figure 2.7. The ZigBee has been used to

transfer the information between appliances and communication

device. The ZigBee uses IEEE 802.15.4 of radio frequency (RF)

communication standard (refer to figure 2.7). The communication

device use GSM to receive command from mobile phone (refer to

figure 2.6). This smart switch can be control using smart phone,

however it is cannot monitor the appliances in the house.

Figure 2.6: Communication device using GSM

Figure 2.7: Appliance device using ZigBee

B.2. Smart Switches Available In Market

Nowadays, smart switch technology is expanding rapidly. There are

many type of smart switches that are already available in current market.

This technology is widely implemented in universities and homes.

B.2.1. Smart Switch Using Motion Sensor

Figure 2.8: Smart infrared sensor switch

Motion sensor released infrared rays

that can detect motion of the human body

within the detection area to turn “ON” the switch. The detection of

motion will transform into an electrical signal by interrupt the current of

the infrared circuit to trigger the switch. This smart switch only turns

“ON” if it detects motion in a room and will turn off within the given

time. It may be difficult for a user to turn “OFF” the switch into sleep

mode.

B.2.2 Smart switch using Wi-Fi and Cellular Connection

Smartphone Home Remote

Figure 2.9: Belkin F7C030fc WeMo Light Switch

This product manually turn “ON” and “OFF” by touching the button

on the switch. It is compatible with Android devices to control the

switch using home Wi-Fi network. Belkin provides free WeMo App for

Android.

This chapter discussed on smart switch system, sensor and wireless

communication. It discussed about previous project that was made to build

smart switch system. The explanations are more about the microcontroller,

sensor and wireless communication that was used.

C. LOCAL STUDIES

This chapter is based on the article from Dayrit property Sales and

Leasing Corporation. (2013). “Home Automation | Future of Condo Living in

the Philippines”. Retrieved from

http://www.dayritproperties.com/2013/10/home-automation-future-of-condo-

living-in-the-philippines/. For countless years, home automation is the

exclusive domain of the rich or extremely techie people. In the Philippines, we

hardly ever heard about home automation as we Filipinos still rely on the

manual and the traditional. The cost of setting it up is priced almost like

buying a new house.

Just by reading tech news in Google, major phone carriers have gotten

into the act, and rumors suggest Google, Apple, Microsoft and other

consumer electronics companies are working on home automation. It is likely

that home automation is in the process of making a transition to commoditize

the technology starting of course with first world countries like the US. A

known real estate developer who has a project in Mandaluyong kick starts the

trend in home automation by the first future ready home. They offer unit

owners the opportunity to enjoy the seamless and connected lifestyle within

the confines of their own automated home.

Through home automation, residents are allowed to control their home

appliances, lights, curtains, and even the thermostat can be switched on or off

with the press of a button on their Smartphone or tablet. Wireless home

automation has been attempted for decades with minimal or no success. If a

company can offer a solution that simply works and secure and of course cost

effective, home automation will be a trend.

CHAPTER 3

RESEARCH AND METHODOLOGY

A. METHOD OF RESEARCH USED

This chapter shall discuss the research methods available for the study

and what is applicable to use.

The descriptive research method uses observation and surveys. In this

method, it is possible that the study would be cheap and quick. As widely

accepted, the descriptive method of research is a fact-finding study that

involves adequate and accurate interpretation of findings. Thus, this approach

was used for this study. This descriptive type of research utilized

questionnaires and observations in the study. The purpose of employing this

method is to describe the nature of a situation, as it exists at the time of the

study and to explore the cause/s of particular phenomena. Relatively, the

method is appropriate to this study since it aims to describe the present

condition of technical analysis as it is used in the stock market. The

researcher opted to use this kind of research considering the desire of the

researcher to obtain first hand data from the respondents so as to formulate

rational and sound conclusions and recommendations for the study.

The technique that was used under descriptive method is the normative

survey approach and evaluation, which is commonly used to explore opinions

according to respondents that can represent a whole population. The survey

is appropriate in this study because it enables the researcher in formulation of

generalizations.

B. SOURCES OF DATA

B.1. Primary Source of Data

The primary source of data came from a researcher-made survey

questionnaire, which will be given to the respondents. The respondents of

this study were randomly selected at Blumentritt, Manila.

A. Respondents of the Study

We conduct numbering twenty-five (20) respondents. The respondents

were randomly selected.

B. Instruments to be used

To determine the impact of Bluetooth technology, the researcher will

prepare a survey questionnaire, which will be given to the intended

respondents.

B.2. Secondary Source of Data

The secondary sources of data came from published articles from

theses and related studies on modern technologies, online applications,

and network technologies.

For this research design, the researcher gathered data, collate published

studies from different local and foreign universities and articles from social

science journals, distribute sampling questionnaires; conducted surveys; and

made a content analysis of the collected documentary and verbal material.

Afterwards, the researcher summarized all the information, made a

conclusion based on the null hypotheses posited and provided insightful

recommendations on the issues dealing with the development of the study.

C. DATA GATHERING PROCEDURES

This study was conducted in order to assess the response of people when

it comes to innovation and development of new technology inside their

homes. The data were collected and then processed in response to the

problems posed in Chapter 1 of this study. The fundamental goals drove the

collection of the data and the subsequent data analysis.

Respondents were asked if they are using Android phones and 65% of

which said that they are using such phone. Another question is asked and

50% of the total respondents said that they are familiar on Home Automation

and will consider adding Home Automation in their household. In relation to

this, the researcher could presume that in the said percentage, a

considerable number could possibly use the project. Appendix A is a copy of

the survey questionnaire provided by the researcher.

55%25%

20%Comfort/convenienceSecurityEnergyCool features

Figure 3.1: Factors in adding home automation system

The last question was about the importance of electrical functions.

Respondents were asked to rank home appliances according to its degree of

importance being 1 as the most important and 4 as the least important. Figure

3.2 shows the result of the survey having automatic control of light as the

most important based on the gathered data.

55%

18%

19%

8%Automatic Control of light

Turn off/on Television

Turn on/off electric fan

Disconnect charger from socket

Figure 3.2: Ranking of home appliances according to its degree of

importance.

CHAPTER 4

PRESENTATION, ANALYSIS AND INTERPRETATION OF DATA

A. DESIGN

A centralized controller can be used to control appliances in your home.

The design uses ATMEGA328 microcontroller board as the controlling unit of

the system, Android phone as input device and the home appliances as

output device. The connection between the input and the control unit is

wireless using Bluetooth. Figure 4.1 shows the block diagram of the system.

Input Process Output

Bluetooth Relay

Fig. 4.1: Block Diagram of Home Automation Power-Controlled Switch

Power 220V Supply

Appliances On/OffMicrocontrollerCellphone

command signal

A Bluetooth shield is interfaced to the microcontroller board at the receiver

end while on the transmitter end, an Android application is necessary to send

ON/OFF commands to the receiver where loads are connected, if the app is

not installed the system does not make sense. By touching the specified input

on the application, the loads can be turned ON/OFF remotely through this

wireless technology.

A.1. Algorithm

This section will explain the step-by-step process of how the system

was developed.

A.1.1 Parts and Components

In order to start the design of the project, you will be needing the

parts and components listed below.

Fig. 4.1: ATMEGA328 Gizduino microcontroller board.

Fig. 4.2: Bluetooth Shield Fig. 4.3: Relay card

Fig. 4.4: 12V DC Power Adapter Fig. 4.5: Extension cord

Fig. 4.6: Some wires and jumper wires

Fig. 4.7: Android phone with Blueterm application

A.1.2. Microcontroller Program

Before proceeding with the hardware connections of the project,

you need to compile and upload a program in your microcontroller for

you to control the system. The program must be appropriate with the

process that you want to achieve. In this section, the code that the

researcher used will be provided below for development and/or

modification.

A.1.3. Schematic Diagram

The connection of the parts and components will be showed in this

section. Make sure to follow the connection especially the proper

wiring of supply and ground from the source. It may damage one of

your component or worst is your whole system. Figure 4.8 shows the

schematic diagram of this project with a single load only.

Fig. 4.8: Schematic Diagram connecting a single appliance.

In the figure above, they used Arduino as their microcontroller

board; you can also choose your desired microcontroller board as long

as it uses an ATMEGA328 microcontroller chip. Place the Bluetooth

shield above your microcontroller before you precedes with the wiring,

thus, making your connections in microcontroller through Bluetooth

Shield. Connect the 12V-DC power adapter in the microcontroller to

power up your system. Actual connection after wiring is showed in

figure 4.9.

B. TESTING

After setting up the components needed in this project, this is the result of

the testing that has been conducted. Table 1 shows the testing of power

switching using relay.

TRIAL Scenario Expected Actual

Remark

s

1Relay 1 is Off, Relay 1 should

turn On

Relay 2

turned OnAction: Turn ON

2Relay 2 is On, Nothing should

happen

Nothing

happenedAction: Turn On

3Relay 3 is On, Relay 3 should

turn Off

Relay 3

turned OffAction: Turn Off

4Relay 4 is Off, Nothing should

happen

Nothing

happenedAction: Turn Off

Table 1: Testing of Power switching ON/OFF using relay

Legend: --The actual result is the same as the expected result.

It shows that during the first testing of the power switching ON/OFF using

relay. The actual result of four trials is the same with the expected result prior

to the executed action.

After testing the power switching using relay, the loads are then

connected. Table 2 shows the outcomes of the testing done.

TRIA

L Scenario Expected Actual

Remark

s

1 Device 1 is Off,Device 1

should turn

On

Nothing

Happened

.

Action: Press the

command signal for

device 1 to turn it ON.

2 Device 2 is On,Device 2

should turn

Off

Device 2

is still On

Action: Press the

command signal for

device 1 to turn it OFF.

3 Device 1 is Off,Nothing

should

happen.

Device 1

turns On

Action: Press the

command signal for

device 1 to turn it OFF.

4 Device 2 is On, Nothing

should

happen

Device 2

turns OffAction: Press the

command signal for

device 2 to turn it ON.

Table 2: Testing of Power switching with loads connected.

Legend:

--The actual result is not the same as the expected result.

In second testing of the power switching ON/OFF, loads are then

connected to the relay. The actual result of four trials is the inverse with the

expected result prior to the executed action.

C. CONCEPTUAL FRAMEWORK

C.1. Flowchart

No

Yes

Is Device 1, 2, 3, 4 ON?

Turn ON Bluetooth.

Launch BlueTerm application

Is Bluetooth Connectivity

ON?

Start

Press 1 to turn ON “Device 1”.Press 2 to turn ON “Device 2”.Press 3 to turn ON “Device 3”.Press 4 to turn ON “Device 4”.

No

Yes

No

Yes

CHAPTER 5

SUMMARY, CONCLUSION AND RECOMMENDATION

A. SUMMARY OF FINDINGS

This project entitled, “Home Automation: Automatic Switching ON/OFF

using Android phone via Bluetooth”, aims to give a more convenient, cost

efficient and safety life to the user. It is all automated. This project takes away

a wide range of initiatives from people. Equipment and other electric powered

gadgets, such as home appliances and lighting are all instantly control and

people do not need to have a hand in it.

An Android smart phone connected with Bluetooth sends control signals to

microcontroller board. On receiving signal microcontroller process, it performs

task to switch the appliances. System provides a user-friendly environment to

control all connected home appliances. The popularity of the wireless network

in home automation is increased in recent years and the advance technology

has made this possible. The system is secured for access from any user

or intruder. The users are expected to acquire pairing password for the

connection to access the switching of home appliances. This system can be

used as a test bed for any appliances that requires on-off switching

applications without any internet connection. The full functionality of the

home automation system was tested and the wireless communication

between the cell phone and microcontroller was found to be limited to <50m

in a concreted building and maximum of 100m range was reported to be

applicable in an open range.

The home automation system has been experimentally proven to work

satisfactorily by connecting sample appliances to it and the appliances were

successfully controlled from a wireless mobile device. The Bluetooth client

was successfully tested on a multitude of different mobile phones from

different manufacturers, thus proving its portability and wide compatibility.

This project will not only provide convenience to the common man but will be

a boon for the elderly and disabled.

B. CONCLUSION

Nowadays, Smart home usually implement the normal remote and control

of devices in your home. Rather than encouraging laziness, if employed

properly, this can provide help for both individual users and organizations. For

instance; smart home technology could be especially useful for people with

disabilities, allowing them to switch their home appliances from a single

device. Indeed, many of the current deployments of connected technology are

in homes for people with accessibility needs. Some devices if not controlled

properly consume a lot of energy which leads to extra expenditure on

electricity. Thus, this project will help the user to save energy, improve safety

and effective usage of electrical equipment and appliances.

As we've mentioned, providing peace of mind is one aspect that may

appeal to homeowners. In addition, home automation is growing rapidly

nowadays and enters in this emerging market quickly. It can undoubtedly

make life at home much easier. This project can help users save both money

and energy. In recent years, there has been a rise in energy monitors and

energy saving plugs. Mobile devices have the potential to connect to these

devices, giving the user one place where they can review and alter their

home’s energy use in order to better control their budget. It is evident from

this project work that a Home Automation: Automatic Switching On/Off Using

Android Phone via Bluetooth can be cheaply made from low cost locally

available components and can be used to remotely control home appliances

ranging from electric fan, television and even from lightning system. And

better still, the components required are so small and few that they can be

packaged into a small inconspicuous container.

C. RECOMMENDATION

It can be concluded that the objectives of this project were achieved,

which are high level of accessibility, convenience to elderly and handicapped

person, cost-efficient and safety system. In addition, a user-friendly

Android application as an alternative to remote control unit of a home

automation system has also been established. Improvements can be made to

improve this project, some recommendations are:

1. Security system that might be compatible for the Bluetooth system.

2. Add circuit breaker for security purposes.

3. Compatibility for the Apple users or iOS device and Windows.

4. You can also use GSM module if you want an SMS connection. Just

upload another program in the microcontroller that is applicable with

the output that you want to achieve.

5. Add notifications to cellphone if there is connection lost.

APPENDIX

APPENDIX A: SURVEY FORM

Name: Status:

Age: Gender:

______________________________________________________________

_______

We are engineering students from Universidad De Manila who provides

in-depth analysis and quantitative forecasting of trends in global

connectivity and other emerging technologies.

______________________________________________________________

_______

1. Do you live in an

o apartment

o single-family house

o extended-family house

2. Do you have Android Phones in your home today?

o Yes

o No

3. Have you ever heard of "Smart Home" or “Home automation”

services?

o Yes

o No

If yes, have you ever considered adding it functionality to your

household?

o Yes

o It depends

o No

If No, Why aren’t you interested in automating your home?

o It is not necessary

o It is a waste of money

o I don’t know enough about it

4. Which factor would lead you into adding such a system?

o For its convenience, to save time

o For security reason

o Energy Savings

o Comfort

o Cool Features

5. Which of these functions would be the most important for you?

Please rank your answers from 1 to 3. 1 is the most important and 3 is the

least important.

Automatic control of light

Turn on/off television

Turn on/off electric fan

Unplug charger from socket

Thank you for cooperating! God Bless.

APPENDIX B: POWER SWITCH PROGRAM

int incomingbyte;

#define RELAY1 13

#define RELAY2 12

#define RELAY3 11

#define RELAY4 10

void setup()

{

pinMode(RELAY1, OUTPUT);




Serial.begin(9600);

Serial.println("Press 1 to toggle relay 1 ON.");




Serial.println("Press A to toggle relay 1 OFF.");

Serial.println("Press B to toggle relay 2 OFF.");

Serial.println("Press C to toggle relay 3 OFF.");

Serial.println("Press D to toggle relay 4 OFF.");

}

void loop()

{ static int relayVal = 0;

int cmd;

while (Serial.available() > 0)

{

cmd = Serial.read();

switch (cmd)

{

case '1': { digitalWrite(RELAY1, HIGH);

Serial.println("RELAY 1 ON");

break;

}

case '2': { digitalWrite(RELAY2, HIGH);


break;

}

case '3':

{

digitalWrite(RELAY3, HIGH);


break;

}

case '4':

{

digitalWrite(RELAY4, HIGH);


break;

}

case 'a': { digitalWrite(RELAY1, LOW);

Serial.println("RELAY 1 OFF");

break;

}

case 'b':

{

digitalWrite(RELAY2, LOW);


break;

}

case 'c':

{



break;

}

case 'd':

{



break;

}

case 'A':

{



break;

}

case 'B':

{



break;

}

case 'C':

{



break;

}

case 'D': { digitalWrite(RELAY4, LOW);


break;

}

default:

{

Serial.println("There are only 8 switches for automation (1,2,3,4,A,B,C,D)");

}

}

}

}

REFERENCES

Electric Power Components and Systems. (2014, February 5). Retrieved

September 24, 2015.

Abdurrahman Bin Suratman. (2014). Android Smart Switch for Smart Home.

Universiti Teknologi Malaysia. Retrieved from

http://portal.fke.utm.m/abdurrahmanbinsuratman/2014

Lifehacker. (2015). A Guide to the Smart Home in 2015: What are the Trends

and What Do You Need to Know? Retrieved from

http://www.lifehacker.co.uk/2015/01/20/guide-smart-home-2015-trends-

need-know

http://freshome.com/2013/01/17/top-10-benefits-of-automating-your-home/

http://www.academia.edu/9445731/

Home_Automation_Review_of_Literature

http://www.slideshare.net/adammckay/importance-of-the-home-

automation-system

https://en.wikipedia.org/wiki/Home_automation#Overview_and_benefits

http://mysteriousmaniacs.weebly.com/uploads/1/2/5/6/12565748/

home_automation.pdf

http://www.researchgate.net/publication/

231182479_BLUETOOTH_BASED_HOME_AUTOMATION_SYSTEM_U

SING_CELL_PHONE

http://pegasus.javeriana.edu.co/~CIS0810SD03/HA%20Bluetooth.pdf

Date post:	27-Jan-2016
Category:	Documents
Upload:	christine-halili
View:	15 times
Download:	3 times

Design

Documents