BLUETOOTH BASED

HOME APPLIANCE

SYSTEM

BLUETOOTH BASED HOME APPLIANCE SYSTEM

Group Members:

Adarsh Kumar

Ajeet Pal

Anish Kumar Yadav

Akanksha Singh

Mentor:

Shiv Narayan Gupta

INTRODUCTION

Realize the concept of a smart home.

Wireless home network .

Appliances can communicate with each other in

network.

Use in a cost-effective manner.

Provide secured network.

BLOCK DIAGRAM

AT

89C52

REGULATED

POWER

SUPPLY

BLUETOOTH

MODULE

LCD

RELAY’S

APPLIANCE’S

ANDROID

MOBILE PHONES

COMPONENT LIST

INTRODUCTION TO BLUETOOTH

Bluetooth Technology is standard for short-range radio

communication.

It is a low cost bi-directional (2 ways) wireless interface

between mobile devices that provides low power

consumption.

Bluetooth Transceiver referring to Bluetooth Transmitter

and Receiver and every Bluetooth node have Bluetooth

Transceiver.

The aim is to eliminate the usage of cables. Bluetooth

system operates in worldwide unlicensed 2.4GHz

Industrial-Scientific-Medical (ISM) frequency band.

Bluetooth devices can form a network.

• BLUETOOTH MODULE(HC-05):

HC-05 module is an easy to use Bluetooth SPP

(Serial Port Protocol) module, designed for

transparent wireless serial connection setup.

Serial port Bluetooth module is fully qualified

Bluetooth V2.0+EDR (Enhanced Data Rate)

3Mbps Modulation with complete 2.4GHz radio

transceiver and baseband.

It uses CSR Bluecore 04-External single chip

Bluetooth system with CMOS technology and

with AFH(Adaptive Frequency Hopping

Feature).

8051 Basic Microcontroller

Introduced in 1981 by Intel corp.

8 bit microcontroller

4K bytes internal ROM

128 bytes internal RAM

Four 8-bit I/O ports (P0 - P3).

All four ports are bidirectional

Max. of 64k bytes of on chip ROM

8051 PIN

DIAGRAM1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

40

39

38

37

36

35

34

33

32

31

30

29

28

27

26

25

24

23

22

21

P1.0

P1.2

P1.3

P1.4

P1.5

P1.6

P1.7

RST

XTAL1

Vcc

P0.0(AD0)

P0.2(AD2)

P0.3(AD3)

P0.4(AD4)

P0.5(AD5)

P0.7(AD7)

EA/VPP

P2.6(A14)

P2.5(A13)

P2.4(A12)

P2.3(A11)

P2.2(A10)

P2.1(A9)

P2.0(A8)

8051(8031)

(8751)

(8951)

(8952)

P1.1

GND

P0.1(AD1)

P0.6(AD6)

ALE/PROG

PSEN

P2.7(A15)

(RXD)P3.0

(TXD)P3.1

(INT0)P3.2

(INT1)P3.3

(T0)P3.4

(T1)P3.5

(WR)P3.6

(RD)P3.7

XTAL2

HARDWARE DISCRIPTION

POWER SUPPLY:• A device or system that supplies

electrical or other types of energy to an output load or group of loads is called a power supply unit or PSU.

• Here in our application we need a 5v DC power supply for all electronics involved in the project.

• This requires step down transformer, rectifier, voltage regulator, and filter circuit for generation of 5v DC power.

UART

• UARTs (Universal Asynchronous Receiver

Transmitter) are serial chips on your PC

motherboard (or on an internal modem card).

• The UART function may also be done on a chip

that does other things as well.

RELAY

• The relay takes advantage of the fact that

when electricity flows through a coil, it

becomes an electromagnet.

• The electromagnetic coil attracts a steel

plate, which is attached to a switch.

• So the switch's motion (ON and OFF) is

controlled by the current flowing to the coil,

or not, respectively.

ABOUT KIEL UVISION 5

Keil Software to provide you with software

development tools for 8051 based

microcontrollers.

With the Keil tools, you can generate

embedded applications for virtually every

8051 derivative.

Keil software converts the C-codes into

the Intel Hex code.

ADVANTAGES AND DISADVANTAGES

Embedded systems are

designed to do some

specific task, rather than

be a general-purpose

computer for multiple

tasks.

Bluetooth is actually

inexpensive.

Low energy

consumption.

The only real downsides

are the data rate and

security.

Bluetooth only offers 1

MBps speed.