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Bluetooth SIG

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Tile Mate

by Tile
by Tile

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Tile Slim

by Tile
by Tile

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Moto G5 Plus

by Lenovo
by Lenovo

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P9

by Huawei
by Huawei

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Rogue (2016)

by Nissan Motor Company Ltd
by Nissan Motor Company Ltd

Galaxy S8

by Samsung
by Samsung

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LG G6

by LG
by LG

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Eve Motion

by Elgato
by Elgato

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OPPO R9s

by Oppo
by Oppo

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Eve Room (2016)

by Elgato

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HTC 10

by HTC
by HTC

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Jabra Storm

by Jabra
by Jabra

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Bluetooth is a wireless technology standard for exchanging data over short distances (using short-wavelength UHF radio waves in the ISM band from 2.4 to 2.485 GHz) from fixed and mobile devices, and building personal area networks (PANs). Invented by telecom vendor Ericsson in 1994, it was originally conceived as a wireless alternative to RS-232 data cables. It can connect several devices, overcoming problems of synchronization.

In time evolutionary point of view Bluetooth technology started in 1998,  the three most important Bluetooth technology evolution are version 2.1 + EDR - secure, simple pairing in 2007 and the second one was version 3.0 - high speed in 2009, and the third one was version 4.0 - Low Energy in 2010. Bluetooth version 4.0 was a new way of transferring data between two devices with very low power.

Bluetooth BR/EDR/HS uses time division multiplex where time is divided into 625 uS slots and data is exchanged via packets, there are two types of data exchange mode one is Asynchronous Connection-oriented logical transport (ACL), and another one is Synchronous Connection-oriented link (SCO), Enhanced SCO (eSCO), in simple ACL is for data transfer and whereas  SCO and eSCO is for voice.

Bluetooth  Low Energy  ISM band split into 40 channels of two types; one is Advertising Channels and other is Data Channels. Advertising Channels are three fixed channels those are channel 37 frequency of 2402MHz, channel 38 frequency of  2426MHz, and channel 39 frequency of 2480MHz. Data Channels are those channels used to transfer a large amount of data, and those channels are channels 0 -10 frequency from 2404 - 2424 MHz and channels 11 - 36 with frequency from 2428 - 2478 MHz.

 

 

Products

Reviewed Products

Tile Mate

by Tile
by Tile

Buy Now on Amazon

Tile Slim

by Tile
by Tile

Buy Now on Amazon

Moto G5 Plus

by Lenovo
by Lenovo

Buy Now on Amazon

P9

by Huawei
by Huawei

Buy Now on Amazon

Rogue (2016)

by Nissan Motor Company Ltd
by Nissan Motor Company Ltd

Galaxy S8

by Samsung
by Samsung

Buy Now on Amazon

LG G6

by LG
by LG

Buy Now on Amazon

Eve Motion

by Elgato
by Elgato

Buy Now on Amazon

OPPO R9s

by Oppo
by Oppo

Buy Now on Amazon

Eve Room (2016)

by Elgato

Buy Now on Amazon

HTC 10

by HTC
by HTC

Buy Now on Amazon

Jabra Storm

by Jabra
by Jabra

Buy Now on Amazon

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