IRJET- Android based Home Automation using Bluetooth Technology
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This document describes a home automation system that uses an Android app and Bluetooth technology to control electrical appliances in a home. The system uses an Arduino microcontroller connected to sensors, relays, and appliances. An Android app allows users to control lights and fans by sending commands via Bluetooth to the microcontroller. The system is designed to assist elderly and disabled people by allowing remote control of devices without needing to physically switch them on or off. A motion sensor is also used to automatically turn lights on and off depending on whether a person is detected in the home.
![International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056
Volume: 06 Issue: 03 | Mar 2019 www.irjet.net p-ISSN: 2395-0072
© 2019, IRJET | Impact Factor value: 7.211 | ISO 9001:2008 Certified Journal | Page 8185
4. RESULT
We successfully completed our project using Android
Based Home Automation System. On basisofprogramcoded
into Arduino the LED glows and goes of depending on the
pressing of button on keypad. Our project useful for
physically challenged disabled people.
5. CONCLUSION
The project has proposedthe idea ofsmarthomesthatcan
support a lot of home automation system. Android App act
like a remote-control device provides help and assistance
especially to disabled and elderly. A smart home that having
a connection between wireless communication sensors,
monitoring and tracking.Smarthomeisanenormoussystem
that part of multiple technologies and applications that can
be used to provide security and control of home easily.
In future, the window GUI will be invoked with
speech recognition voice control. The android GUI will be
invoked as a remote Bluetooth.
REFERENCES
[1] MH Rashid. Power electronics circuits, devices and
application. Hall International edition, 2003, pp. 232- 257.
[2] Alper Gurek, Caner Gur, Cagri Gurakin, Mustafa Akdeniz,
Senem Kumova Metin, Ilker Korkmaz. An Android Based
Home Automation System. 10th International conference on
High Capacity Optical Network and Enabling Technologies,
Dec 2013.
[3] N. Sriskanthan and Tan Karand. Bluetooth Based Home
Automation System. Journal of Microprocessor and
Microsystems, 26, pp.281-289, 2002.
[4] Mark Murphy (2011): Beginning Android 3, Apries.
[5] Android Wireless Application Development, 2nd edition
by Addison Wesley (2011).
[6] Brodkin Jon (Nov 5, 2012): 5 things we love about
Android.
[7] Reardon, Margnerite (August 15, 2011). News.cnet.com.
[8] www.antel.com](https://image.slidesharecdn.com/irjet-v6i31018-191001071227/85/IRJET-Android-based-Home-Automation-using-Bluetooth-Technology-4-320.jpg)
IRJET- Android based Home Automation using Bluetooth Technology
- 1. International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 06 Issue: 03 | Mar 2019 www.irjet.net p-ISSN: 2395-0072 © 2019, IRJET | Impact Factor value: 7.211 | ISO 9001:2008 Certified Journal | Page 8182 Android Based Home Automation Using Bluetooth Technology Lekram Bahekar1, Shilpa Kanhekar2, Padma Jibhakate3, Bharti Dhore4, Dipali Chopkar5, Mrunalini Hatwar6 1, 2, 3, 4, 5, 6Department of Electronics and Telecommunication Engineering MPCOE Bhandara, MH, India. ---------------------------------------------------------------------***--------------------------------------------------------------------- Abstract - This paper represents the design and implementation of reliable, compact and low-cost android based smart phone home automation system. Home automation is useful for numerous advantages. It gives a way to have things around your home happens automatically. In today world every people have smart phone with them at every moment of time. So, it makes sense to use these to control home appliance in home automationsystemby usinga simple android app, one can control anyhomeapplianceswith single click. Commands are sent via Bluetooth to microcontroller AT89S52, so we need not get up to switch on or switch off the device while doing some work. This system is designed to assist an provide support in order to fulfill the need of physically challenged & old people. To switch ON & OFF the device automatically, we use motion sensor/PIR Sensor to switch on & off light automatically when detecting the presence of a person within certain range automaticroom light using Arduino is a very useful project. Key Words: Arduino, Bluetooth Module, PIR Sensor, Smart Phone, Electrical appliances. 1. INTRODUCTION The aim of the proposed system is to develop a cost- effective solution that will provide controlling of home appliance using android phone. Home automation is the control of any or all electrical appliances in our home. Generally, when we go out of the house, we switch off the light are the electrical equipment’stoavoidaccidentssuchas short circuit, firing etc. but sometimes we forget to have switched them off. We must come back hometodoso.This is wastage of time and creates lost of chaos and tension so to avoid any such kind of situationthelatesttechnologycoming up worldwide is the smart home technology. We use PIR Sensor to switch off the electrical appliance PIR sensor work like a motion sensor it detect the person when in home or without home sometimes people forget to switch off electrical appliances like fan, light etc. PIR Sensor which detects the infrared energy omitted from human’s body when human go out home the PIR Sensor automatically off the electrical appliances. In this project we have integrated technologies like android with Bluetooth to execute home automationsystem we designed user interface using android because android operating system is capturing most of the mobile market. It has technical advantagesofscalability,flexibility,availability, security and its ease of use for users we have selected Bluetooth technology to be used in this project because it will keep home automation system active and user can interact with the system from anywhere in the house. The aim of this article to propose a wireless remote control that permits elderly people with physical challenges handicapped and disabled people, to commandtheirdesired device without moving around to the nearest control point. 2. BLOCK DIAGRAM OF PROPOSED MODEL The block diagram of the home automation system is shown in figure 1. It shows a simple sketch of the implementation of home automation and the various part involved in it. The microcontroller is the controlling devices through which application interacts with home appliances. Android application is used to send the command to microcontroller which gives the input to the relay control unit for controlling the appliances like fan & light. Fig -1: Block Diagram of Home Automation BLUETOOTH Android APP LCD DISPLAY RELAY DRIVE R RELAY 1 RELAY 2 RELAY 3 RELAY 4 PIR SENSO R MICROCONTROLLER POWER SUPPLY
- 2. International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 06 Issue: 03 | Mar 2019 www.irjet.net p-ISSN: 2395-0072 © 2019, IRJET | Impact Factor value: 7.211 | ISO 9001:2008 Certified Journal | Page 8183 2.1 Bluetooth Module Bluetooth is a wireless communication technology used for exchanges of data our short distances. It is found in many devicesrangingfrommobilephoneandcomputers.Bluetooth is a combination of hardware and software. It is intended to create a personal area network our short range the biggest advantages of using Bluetooth technology isthatthereareno cables or wires required for the transfer of the data ourshort ranges. Fig -2: Bluetooth 2.2 PIR Sensor We use PIR Sensor to switch off the electrical appliance PIR sensor work like a motion sensor it detect the person when in home or without home sometimes people forget to switch off electrical appliances like fan, light etc. PIR Sensor which detects the infrared energy omitted from human’s body when human go out homethePIR Sensorautomatically off the electrical appliances. Fig -3: PIR Sensor 3. WORKING OF PROPOSED MODEL In this project we have used AT89S52 microcontrollerfor controlling the whole process of this project. AT89S52 is an (8-bit) microcontroller and it requires supply voltage of 5V DC. Then the main power supply is 230V AC. We used step down transformer to convert 230V to 12V. At outputofstep- down transformer, but we need DC for microcontroller circuit then rectifier circuit convert AC voltages to DC voltage. The output of rectifier circuit is 12V DC. But this voltage is not pure DC then filter is used to get pure DC from impure DC, at the output of filter circuit 12V DC is get but microcontroller need 5V DC, then we regulate 12V DC into 5V DC. Circuit connection of this project this are very simple Bluetooth module Rx and Tx Pins are directly connected to the Tx and Rx pins of microcontroller, four 5-volt relay are used as a switch for doing toggle on and off the home appliances running on AC mains and a relaydriverULN2003 is used for driving relays. Fan, lights are connected at microcontroller port2 via relays and relay driver. An 11.0592 MHz crystal oscillator used in this circuit for generating clock signal for microcontrolleranda 5Vvoltages regulator LM 7805 used for providing 5volt for the whole circuit. LCD board is used to indicate the status of electrical load and used to display received data from Bluetooth here LCD Display is interfaced to the port1 of themicrocontroller. i.e. data pins of LCD are connected to port0. The three control pins of the LCD RS, RW, EN are connected to P2.5, P2.6 and P2.7 pins respectively. Electrical loads like lamp and fan are connected to the P0.0 to P0.3 pins through the four-channel relay module Here relays areusedtoswitchAC loads using small DC voltages.NPN transistorisusedtodrive the relay. Follow circuit diagram on page 3. 4. WORKING OF ANDROID APPLICATION In this app ON and OFF buttons are used to ON-OFF the light and fan of home. Now when we touch any buttons in Bluetooth controller app the android phone sends a value to Bluetooth module after receiving this value, Bluetooth module sends the received this value to Bluetooth module sends the received value to the microcontroller and then microcontroller readsitandcompareitwithpredefinevalue, if any match is occurred then microcontroller perform comparative operation same operation will performed each time when button pressed. Now when user touch fan on button in Bluetooth controller app then microcontroller receives via Bluetooth module and then controller switch ‘ON’ the fan by using relay driver and relay. And when user touch fan off button in Bluetooth controller app then microcontroller receives via Bluetooth module then controller switch ‘OFF’ the fan by using relay driver and relay. Here we have used Bluetooth controller app. Download and install Bluetooth controller. Turned ON mobile Bluetooth. Now open Bluetooth controller app. Press scan. Select desired Bluetooth device. (Bluetooth module HC-05) Now set keys by pressing set buttons on screen. Fig -4: Android App, Home Automation Screen.
- 3. International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 06 Issue: 03 | Mar 2019 www.irjet.net p-ISSN: 2395-0072 © 2019, IRJET | Impact Factor value: 7.211 | ISO 9001:2008 Certified Journal | Page 8184 Fig -4: Circuit diagram of home automation.
- 4. International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 06 Issue: 03 | Mar 2019 www.irjet.net p-ISSN: 2395-0072 © 2019, IRJET | Impact Factor value: 7.211 | ISO 9001:2008 Certified Journal | Page 8185 4. RESULT We successfully completed our project using Android Based Home Automation System. On basisofprogramcoded into Arduino the LED glows and goes of depending on the pressing of button on keypad. Our project useful for physically challenged disabled people. 5. CONCLUSION The project has proposedthe idea ofsmarthomesthatcan support a lot of home automation system. Android App act like a remote-control device provides help and assistance especially to disabled and elderly. A smart home that having a connection between wireless communication sensors, monitoring and tracking.Smarthomeisanenormoussystem that part of multiple technologies and applications that can be used to provide security and control of home easily. In future, the window GUI will be invoked with speech recognition voice control. The android GUI will be invoked as a remote Bluetooth. REFERENCES [1] MH Rashid. Power electronics circuits, devices and application. Hall International edition, 2003, pp. 232- 257. [2] Alper Gurek, Caner Gur, Cagri Gurakin, Mustafa Akdeniz, Senem Kumova Metin, Ilker Korkmaz. An Android Based Home Automation System. 10th International conference on High Capacity Optical Network and Enabling Technologies, Dec 2013. [3] N. Sriskanthan and Tan Karand. Bluetooth Based Home Automation System. Journal of Microprocessor and Microsystems, 26, pp.281-289, 2002. [4] Mark Murphy (2011): Beginning Android 3, Apries. [5] Android Wireless Application Development, 2nd edition by Addison Wesley (2011). [6] Brodkin Jon (Nov 5, 2012): 5 things we love about Android. [7] Reardon, Margnerite (August 15, 2011). News.cnet.com. [8] www.antel.com