This document outlines a project for a garage door opening system controlled via an Android application and an Arduino microcontroller, emphasizing security features like password changes by authorized users. It details the hardware components used, including a relay driver, Bluetooth devices, and an Arduino board, along with explanations of Android's open-source capabilities and Bluetooth communication. The project aims for a user-friendly, remote operable system for enhanced garage security.

1. Atmega based garage door opening
Under the Guidance of - Me Only
Submitted by Abhishek Singh Chauhan

2. The main objective of this project is to provide a security system
having the provision to change the password by the authority only.
Remote operation is achieved by any smart-phone/Tablet etc., with
Android OS, upon a GUI (Graphical User Interface) based touch screen
operation.
Android application is used to enter the password and a relay to lock
or unlock the electric door, which is indicated by a lamp.
ABSTARCT

3. Arduino Duemilanove
,Relay Driver IC, EEPROM.
Bluetooth device.
 Resistors, Capacitors, LED, Diodes.
 Relays Transformer, Voltage Regulator.
 Crystal, Lamps.
HARDWARE COMPONENTS

4. POWER SUPPLY
230 V AC
50 Hz
5V
DC
12V step down
transformer
Filter(470µf)
5v RegulatorBridge rectifier

5. ARDUINO
 The Arduino microcontroller is an easy to use
yet powerful single board computer that has
gained considerable traction in the hobby
and professional market.
 The Arduino is open-source, which means
hardware is reasonably priced and
development software is free.

6. IMAGE OF DUEMILANOVE BOARD

7. PROJECT BLOCK DIAGRAM

8. PROJECT BLOCK DIAGRAM

9. FEATURES OF DUEMILANOVE
 The Duemilanove board features an Atmel
ATmega328 microcontroller operating at 5 V
with 2 Kb of RAM, 32 Kb of flash memory for
storing programs and 1 Kb of EEPROM for
storing parameters.
 The clock speed is 16 MHz, which translates to
about executing about 300,000 lines of C
source code per second

10. FEATURES OF DUEMILANOVE
 The Arduino programming language is a simplified
version of C/C++. If you know C, programming the
Arduino will be familiar.
 If you do not know C, no need to worry as only a
few commands are needed to perform useful
functions.

11. WHAT IS CALLED ANDROID?
 Android is an open-source operating system which means
that any manufacturer can use it in their phones free of
charge.
 It was built to be truly open. For example, an application
can call upon any of the phone’s core functionality such as
making calls, sending text messages, or using the camera.
 Android is built on the open Linux Kernel. Furthermore, it
utilizes a custom virtual machine that was designed to
optimize memory and hardware resources in a mobile
environment.

12. WHAT IS AN ANDROID APPLICATION
ON MOBILE PHONES?
 An android app is meant for phones with an android
based operating systems. They can be downloaded
from the android app Market which is pre-loaded on
every android phone.
 Blue control APP and Bluetooth Spp APP are some
examples.

13. ANDROID-THE WORLD'S MOST
POWERFUL MOBILE PLATFORM
 Very customizable. Open source operating
system is easily changed, hacked, manipulated,
and molded to fit whatever functionality you
had in mind. Found on all platforms for all prices
depending on what hardware and software
version you are interested in. The battery is
usually replaceable.

14. COMPARISION OF ANDROID WITH OTHER OS
ANDROID OS : Android is open source software,
manufacturers can modify the operating system
to suit their respective needs and phones. This
becomes a cheap and feasible alternative for the
manufacturer, as opposed to developing an
operating system in-house or hiring a software
company to do it.

15. I-OS:
It's not available on all carriers but this
is expanding. The battery is not
replaceable which is why all the I
Phone users you know have it plugged
in all the time as the battery degrades.

16. Windows Phone:
 Windows Phone is a closed-sourced, which means that it is
solely developed by the company and protected by
copyright. The Windows Store is limited as there only a few
number of apps

18. ANDROID APP-BLUETOOTH SPP
 Bluetooth SPP Manager is an app, which
provides communication between two
Bluetooth devices.
 it uses the RFCOMM Protocol also known as Serial
Port Protocol (SPP) to transmit data between
devices.

19. DEVICE PAIRING- APP ASKING
FOR
A SECURED PIN USE “1234” PIN

20. HIGHLIGHTS OF SPP APP
 Communication between Bluetooth devices via
SPP.
 Using This App, communication between a phone
and external processor/controller can be
achieved.
 Serial communication is an asset of this app.
 Text,chat,digits..etc can be transmitted to any
external Devices.

21. APP ASKING FOR OPERATION MODES
 Always use for real time mode option

22. EASILY AVAILABLE RESOURCE
 CAN BE FREELY DOWNLOADABLE FROM GOOGLE PLAY
FROM ANY ANDROID PHONE AND CAN EASILY INSTALL
IT .
 From Any Android Resource is Necessary to Down load
the APP.
 hone an Internet Access/Wi-Fi. Or any other

23. ANDROID APPLICATION OPERATED BLUETOOTH
 The Android platform includes support for the
Bluetooth network stack, which allows a device
to wirelessly exchange data with other Bluetooth
devices.
 The application framework provides access to
the Bluetooth functionality through the Android
Bluetooth APIs.

24. FEATURES OF BLUETOOTH
Super simple and easy way to interface using Bluetooth stack.
3.3V Device with standard 5V DC Power source.
Can also support SPI Protocol, pins are made available.
Low power consumption, Low cost.
Has high-performance wireless transceiver system
Can be used to interface with PC, Mac or Android
phones/tablets.

25.  Generic Default Visibility at Software side:HC-06 or Linvor
 Default Pairing code is not '0000' but '1234'.
 Please use Baud Rate with 8-N-1 connectivity from other
device.
 Works with any microcontroller with Serial connectivity.

26. RELAY
IT IS A ELECTRO MAGNETIC SWITCH
USED TO CONTROL THE ELECTRICAL DEVICES
COPPER CORE MAGNETIC FLUX PLAYS MAIN ROLE HERE

27. The relay's switch connections are usually labeled COM, NC and
NO:
COM = Common, always connect to this; it is the moving part of
the itch.
NC = Normally Closed, COM is connected to this when the relay
coil is off.
NO = Normally Open, COM is connected to this when the relay
coil is on

28. RELAY DRIVER (ULN 2003)
ULN2003 is a high voltage and high current Darlington
transistor array
It consists of seven NPN Darlington pairs that feature high-
voltage outputs with common-cathode Clamp diode for
switching inductive loads.
The ULN2003 has a 2.7kW series base resistor for each
Darlington pair for operation directly with TTL or 5V
CMOS devices.
Current, Output Max:500mA
Voltage, Input Max:5V
Voltage, Output Max:50V

29. Fig: ULN 2003

30. BC547
The BC547 transistor is an NPN Epitaxial
Silicon Transistor.
The BC547 transistor is a general-purpose
transistor in small plastic packages.
 It is used in general-purpose switching and
amplification BC847/BC547 series 45 V, 100 mA
NPN general-purpose transistors.
Whenever base is high, then current starts
flowing through base and emitter and after that
only current will pass from collector to emitter
+

31. SOFTWARE REQUIREMENTS
 Arduino software which can be
freely available on Arduino Forum
 http://arduino.cc/en/Guide/HomePage.

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