This document provides an overview of Bluetooth technology, including its history, logo, how it works, advantages, and common devices. It discusses how Bluetooth was invented in 1994 by engineers at Ericsson to eliminate cables between mobile phones and other devices. It transmits data using radio waves at 2.4 GHz and can connect up to 8 devices within a short range of about 10 meters. Common Bluetooth devices include headsets, keyboards, speakers, and more.

1. Presented By: Zuhaib Mirani (G. L)
Aamir Ali, Furqan Ali & SaQi Hussain
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Govt: Boys Degree college Larkano (Sindh)

2. 1. Intro to Bluetooth Tech.
2. History Of Bluetooth
3. Logo creation
4. How Bluetooth works
5. How data travel
6. Advantages & Disadvantages
7. Bluetooth Devices
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3.  Simply the Bluetooth is a wireless technology
that communicates with wide variety of
electronic devices.
 The Bluetooth is a wireless technology
standard for exchanging data over short
distance (10 meters) using short Radio-waves
frequency of 2.4 GHz.
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4.  Bluetooth is a wireless communication technology,
creates wireless personal area network (WPAN) for
short-range transmission of digital audio and data.
Wireless Network Tecnologies
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5.  A piconet is a network of devices connected
using Bluetooth technology.
 When a network is established, one device
takes the role of the master while all the
other devices act as slaves.
Point to Point
Point to Multi Point
Master Device
Slave Device
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6.  Collection of Piconets is called Scatternet. A
master or slave in one piconet can become
slave in another piconet.
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7.  In 1994 a group of engineers at Ericsson, a Swedish
company, invented a wireless communication technology.
 In 1998, the original group of Promoter companies—
Ericsson, Intel, Nokia, Toshiba and IBM—came together to
form the Bluetooth Special Interest Group (SIG). Bluetooth
technology is not possessed by a single company, but the
members of the Bluetooth SIG all work together to develop
the technology.
 The objective was to eliminate the cables between the
mobile telephones and cards of PCs, headsets, desktop
devices, etc.
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8. Picture 01
Present Past
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Picture 02

9.  The name Bluetooth taken from the 10th
century, The Harald Blatand was a king of
Denmark and Norway. He was
called by his nick name Bluetooth.
 The name was adopted because Bluetooth wireless
technology is expected to unify the
telecommunications and computing industries
King Harald Blatand
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10. Runic letters
 Logo of Bluetooth taken from Runic alphabet
which also part of Germanic language H for
Harald B for Blatand
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11.  Bluetooth technology is a combination of
hardware and software. On the hardware side,
chip containing the Bluetooth radio.That
sends and receives signals at a specific ISM
radio frequency 2.4 GHz
 The software interprets incoming Bluetooth
signals and sends them out in ways other
devices can read and understand.
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12.  Frequancy Hopping Spread Spectrum (FHSS)
Frequency hopping spread spectrum (FHSS) is a method of
transmitting radio signals by rapidly switching a carries
among many frequency channels. Transmitted data are
divided into packets, and each packet is transmitted on one
of the 79 Bluetooth channels.
 Frequency hopping spread spectrum is defined in the 2.4 GHz
band and operates in around 79 frequencies ranging from
2.402 GHz to 2.480 GHz. Every frequency is modulated with
channel width of 1MHz and rates defined as 1 Mbps
NOTE
It’s also define
bluetooth data
transmiting
security
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13.  Wireless communication
No need of wire to communicate
devices to each other WPAN.
 Low Energy Consumption
It use tiny ammount of power then
mobile tourch.
 Automatic
It’s completely autometic to device
detect within range.
 Security
B.T shares data only authorized device
using (FHSS).
 B.T Inexpensive
It’s not costly technology
 Free Usage
It’s accessible anywhere, it doesn’t
need permission from any country.
 No setup needed
 Industry Wide Support
 Data Transfer Rate
B.T data transmites 1Mbps while the
inferad rate is 4Mbps.
 Data sharing
Bluetooth share data at a time only
and only one device.
 Short range
B.T works in the range of 10 meters
(30feet).
 Devices Connectivity
maximum 8 devices can be connected
through Bluetooth.
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14.  Bluetooth headsets are the most iconic Bluetooth peripherals,
has a tiny computer chip inside that contains the Bluetooth
radio, and software that makes connectivity between devices
possible.
 Pair your headset with your phone and you can use it to receive
calls wirelessly. Because the Bluetooth specification allows for
more than just simply receiving audio, buttons on the headset
can be used to answer and hang up calls, as well.
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15.  Keyboards can also connect over Bluetooth, which is particularly
useful for tablets. Even if you could use a USB cable to connect a
single mouse or keyboard to a tablet, you would want Bluetooth
so you could connect both the keyboard and mouse at once —
you wouldn’t be limited to one input device by the single USB
port.
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16.  An amplifier and loudspeaker with Bluetooth wireless
connectivity that is paired with one or more smart phones,
tablets or computers. the Bluetooth speaker receives digital
audio streams from the host device, which are typically
compressed then decompresses, decodes and amplifies the
audio through the built-in speakers.
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17.  If you wish to communicate over the 100m range, you will
need a class 1 Bluetooth device at both ends.
 If you wish to communicate over the 10m range, you can
have a class 1 or class 2 device at both ends.
Class Maximum Power Operating Range
Class 1 100mW 100 meters
Class 2 2.5mW 10 meters
Class 3 1mW 1 meter
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18. Version Capabilities
Bluetooth 1.x Basic rate 1 Mbps data rate
Bluetooth 2.x Basic rate + EDR 3 Mbps data rate
Bluetooth 3.x Basic rate + EDR + HS
Bluetooth 4.x Basic rate + EDR + HS + LE
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