The Bluetooth technology

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Presented By: Zuhaib Mirani (G. L)Aamir Ali, Furqan Ali & SaQi Hussain

Govt: Boys Degree college Larkano (Sindh)

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1. Intro to Bluetooth Tech.2. History Of Bluetooth3. Logo creation4. How Bluetooth works5. How data travel6. Advantages & Disadvantages7. Bluetooth Devices

Agenda

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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.

Bluetooth

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Bluetooth is a wireless communication technology, creates wireless personal area network (WPAN) for short-range transmission of digital audio and data.

Wireless Network Tecnologies

Bluetooth

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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.

Piconet & Scatternet

Point to Point Point to Multi

Point

Master DeviceSlave Device

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Collection of Piconets is called Scatternet. A master or slave in one piconet can become slave in another piconet.

Scatternet

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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.

History of Bluetooth

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Picture 01

Present Past

Which Picture represents the Bluetooth?

Picture 02

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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

History of Bluetooth

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Runic letters

Logo of Bluetooth taken from Runic alphabet which also part of Germanic language H for Harald B for Blatand

Logo Creation Of B.T

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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.

How Bluetooth works

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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

How data travel

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Advantages Disadvantages

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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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.

Headsets:

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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.

Keyboards:

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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.

Speakers

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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

Bluetooth Classes

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Bluetooth Versions

Version Capabilities

Bluetooth 1.x Basic rate 1 Mbps data rateBluetooth 2.x Basic rate + EDR 3 Mbps data rateBluetooth 3.x Basic rate + EDR + HS Bluetooth 4.x Basic rate + EDR + HS + LE

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THANKS FOR GIVEN ATTENTION