PROJECT TITLE: BLUETOOTH CONTROLLED ELECTRONIC HOME APPLIANCES

• Group members

• Naseem Abbas 2KX3-EE-114• Ahmad Ali 2KX3-EE-166

Presented To : Mam Zunnera Umer

HOME AUTOMATION THROUGH ANDROID MOBILE

CONT..

• This project provides the solution to this problem by integrating all the electrical appliances to a control unit that can be operated by an Android application device (Android smart phone or Tablet). Proposed system controls the electrical loads based on the data transmitted by the Android device. An android application should be installed in user’s mobile or tablet to control the electrical loads. Using this android application user can send the commands to the Bluetooth module to control the electrical loads. Wireless technology used in this project is Bluetooth. It can also be called as “Android based Home Automation System” or “Remote Password Operated Electronic Home Appliances Control System”

REMOTE PASSWORD OPERATED ELECTRONIC HOME APPLIANCES CONTROL CIRCUIT PRINCIPLE:

• In this project Bluetooth module is interfaced to 8051 microcontroller. This Bluetooth receives the commands from the Android application device using wireless communication. The program which is written to the 8051 microcontroller communicates with Bluetooth module serially to receive the commands. Microcontroller switches the electrical loads automatically based on the commands received from the Bluetooth.

BLOCK DIAGRAM

 CIRCUIT DIAGRAM:

CIRCUIT HARDWARE REQUIREMENTS:

• at89c51 controller• 8051 programming board• Programming cable• DC battery or 12V,1A adaptor• 16×2 LCD• Bluetooth module• 5V Relays – 2• Lamp• DC Motor

•  BC 547 Transistors – 2• 330 ohm resistors (1/4 watt) –

2• Reset circuit• Crystal circuit• 5V DC power supply circuit• Connecting wires

REMOTE PASSWORD OPERATED HOME APPLIANCES CONTROL PROJECT ALGORITHM:

• Initialize the LCD and UART protocol.• Now read the data from Bluetooth module.• Display the received data on LCD.• Compare the received string with predefined strings and

accordingly switch the electrical loads.• Display the status of electrical loads on LCD.

HOW BLUETOOTH CONTROLLED ELECTRONIC HOME APPLIANCES CIRCUIT WORKS?• Write the program to the project in keil software and create .hex file.•  Burn program to the controller with help of flash magic.

•  Now give the connections as per the circuit diagram.• While making the connections, ensure that there is no any common

connection between DC and AC supplies.• Use 5V power supply circuit to provide regulated 5V DC to the

microcontroller.•  Switch on the both AC and DC supplies.• Now relay output pins gets 230v so do not touch the load connected pins.• Install Bluetooth apk file in android device.• Now pair android device with Bluetooth module.• Send data to switch on the electrical loads.

BLUETOOTH CONTROLLED ELECTRONIC HOME APPLIANCES PROJECT APPLICATIONS:

• This project is used to control the various electrical appliances from the remote area.• Using this project we can control all the loads using a single

remote and a control unit.

•Limitations of the Circuit:• In this project the distance between control unit and android

device is limited.

THANK YOU . . .