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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.