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