Bluetooth is a wireless standard that allows various electronic devices to connect and exchange data within a short range of about 10 meters. Devices that support the Bluetooth standard can communicate without needing a physical connection. Bluetooth devices are classified into power classes based on their output power and range. Class 1 devices have the greatest range up to 100 meters. Bluetooth works by having devices exchange addresses and capabilities when within range, then using radio frequencies to connect and transfer data wirelessly at speeds up to 721 Kbps. Connections can be between two devices or multipoint between more than two. Bluetooth enables wireless connectivity between devices like computers, printers, and headsets.

1. PRESENTED BY
S. SURYA DEVI

2. What is Bluetooth?
Bluetooth is actually a standard for
wireless communications between
devices in a personal area network (PAN)
using radio frequency for a short range
(around 10 meters).GOOD BYE
CABLES !

3. Con…
So any two devices that
follow the standard can
communicate and exchange
data between each other
without the need of any
connection to be made
between them.

4. Power considerations
Bluetooth devices are classified according to
three different power classes.
Most portable Bluetooth devices will probably
be in power class1 or 2 due to cost & battery life
issues. A power class 1 device provides up to 100m
range, which is sufficient for home networking and
other applications that require a greater range.
Power
class
Max o/p Power
1 100mw 20dbm
2 2.4mw 4dbm
3 1mw 0dbm

5. How Bluetooth technology works?
 Two Bluetooth products can exchange their addresses and capabilities just
after coming within the range of about 10metres. The radio operates on the
globally-available unlicensed radio band, 2.45 GHz and supports data speeds of
up to 721 Kbps.
The Bluetooth modules can be either built into electronic devices or used as
an adaptor. For instance in a PC they can be built in as a PC card or externally
attached via the USB port.

6. con…
Bluetooth Module
Connections can be point-to-point or multipoint.
The maximum range is 10 meters but can be
extended to 100 meters by increasing the power.
Bluetooth devices are protected from radio
interference by changing their frequencies
arbitrarily up to a maximum of 1600 times a
second, a technique known as frequency hopping.

7. PICONET WITH OPERATIONS
 Piconet is the important factor in
Bluetooth connectivity. It is simply a
collection of devices connected
through Bluetooth Technology. While
establishing a Piconet , one unit will
behave as a master and the other as
slaves for the duration of Piconet
connection .

8. con…
 By installing a Bluetooth network in office you can do away with the
complex task of networking between the computing devices. Each Bluetooth
device could be connected to 200 other devices. It supports both point to point
and point to multipoint connections.
The Bluetooth technology connects all your peripherals wirelessly. Connect
your pc or to printers , scanners and other devices without the trouble of cable
attachments. You can increase your connections by connecting your keyboard
wirelessly to your computer.

9. Bluetooth Applications:
 If your digital camera is Bluetooth enabled,
you can send videos, images from any location
to any location without the problem of
connecting your cameras to the mobile phone.
Connect your wireless headset to your pc to your
mobile phone or mobile computer to keep your
hands free for more important tasks when you
are at the office or in your car.

10. Advantages:
 Bluetooth Devices are Wireless
 Bluetooth Technology is Inexpensive
 Bluetooth is Automatic
 Low Energy Consumption Bluetooth uses low
power signals
 Share Voice and Data
 Accessible from anywhere

11. Disadvantages:
 Bluetooth has a low data rate
 We can transfer data only the minimum distance
 It is a rapid growing technology that makes man
easy to transfer his electronic equipments from one
place to another. It is a technology that not yet
completely developed. Hope this will be achieved
very soon.
Conclusion: