Bluetooth


Bluetooth is a wireless technology standard that is used for transmitting data over short distances. This standard is widespread and used by a lot of devices like telephones, tablets, headsets, media players, game consoles, etc. The name comes from Harald Bluetooth, a Danish king from the last period of the 10th century.

Advantages

  • The technology is wireless
  • It's free to use
  • It is very easy to use and the connections are made almost automatically
  • There is little chance that interferences will occur, even if there are many devices around who use it
  • It has low energy consumption and uses a small processing power
  • It's supported by many devices

Disadvantages

  • The speed is not impressive
  • The security isn’t so good as other wireless technologies
  • The battery life will drop considerably if Bluetooth is always on
  • It has a low range, related to other wireless technologies

Components

  • Antenna/RF
  • Bluetooth Radio and Baseband
  • Bluetooth Software Protocol Stack

 Versions

  • Bluetooth v1.0 and v1.0B
  • Bluetooth v1.1
  • Bluetooth v1.2
  • Bluetooth v2.0 + EDR
  • Bluetooth v2.1 + EDR
  • Bluetooth v3.0 + HS
  • Bluetooth v4.0



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