Android Password Based Remote Door Opener System Project

Introduction

Our project aims at remote password based door opener system through an android application. The system tends to make a secure door opening mechanism such that the door only unlocks when a security personnel opens it by entering the right password through an android application.
The authorized personnel needs to be present within Bluetooth range of the door but need not open the door manually. He just needs to enter the right password through his android application in order to unlock the door. This is a useful concept in places where the security needs to open gates quite usually or need to operate a door from a vehicle without needing to get down from it.
The command sending functionality is achieved through an android application. The application provides an interactive user friendly GUI for this purpose. The android application can be operated from any device running on android OS and uses Bluetooth as a medium for sending commands.
As soon as commands are sent through the android device a Bluetooth receiver is used to receive those commands. These commands are then sent to the 8051 microcontroller. The microcontroller processes these commands and then tallies the password to check its correctness. If the right password is encountered it sends command to open the door.

Hardware and Software Specification

Hardware Specifications:

• 8051 series Microcontroller
• Crystal
• Transformer
• Diodes
• Push Button
• DC Motor
• Voltage Regulator
• Motor Driver IC
• Bluetooth device
• LED

Software Specifications:

• Keil µVision IDE
• MC Programming Language: Embedded C
• Android App

Block Diagram:

Project Description

The main objective of this project is to unlock a garage door by an android application using a unique password entered through the android application device. Opening and closing of garage door involves human labor. In this proposed system, the opening and closing of a garage door  is achieved by using an android application.

The owner can connect android application device to the system through Bluetooth, which in turn is connected to a microcontroller controlled garage door that can open/close the door by entering the password. This method is very convenient as one doesn’t have to get down of his car to open/close the door physically.

Remote operation is achieved by any smart-phone/Tablet etc., with Android OS, upon a GUI (Graphical User Interface) based touch screen operation. This project is based on the android application, android application send data through Bluetooth.

Another Bluetooth device connected at the receiving end which is fed to the microcontroller. The sent data (password entered by the user) matches with the password stored in the microcontroller, and then the microcontroller initiates a mechanism to open the door through a motor driver interface.

Further this project can be incorporated with an EEPROM i.e., a non-volatile memory so that the password can be changed by the owner.

Circuit image