Bluetooth is a technological standard that enables the transmission of data and voice between different devices through a secure radio frequency.
Bluetooth is a technological specification for wireless networks that allows the transmission of voice and data between different devices using a secure radio frequency ( 2.4 GHz ). This technology , therefore, allows communications without cables or connectors and the possibility of creating wireless home networks to synchronize and share information stored on various devices.
Thus, for example, one of the most common situations in which Bluetooth is used is when two acquaintances are in the same room and want to exchange photographs that they have on their respective mobile phones. In this case, they connect the Bluetooth and "pass" these images to each other quickly and easily without having to resort to an Internet connection.
It is common to confuse or contrast Bluetooth and WiFi connections. However, it must be made clear that both cover different actions and fields that are absolutely compatible and equally useful for any user of portable devices such as the aforementioned smartphones , as well as PDAs or tablets, for example.
Emergence of the Bluetooth standard
The term Bluetooth ( "Bluetooth" in English, although the name comes from the Danish and Norwegian king Harald Blåtand , translated as Harold Bluetooth ) is the commercial and popular name for the IEEE 802.15.1 wireless communication standard. The first company to investigate this technology was Ericsson , responsible for leading a group that, over time, included IBM , Nokia , Microsoft , Motorola and other companies that supported the standard.
Computers, mobile phones and digital cameras are some of the devices that can communicate using Bluetooth technology (as long as their models allow it).
It is possible to share information between two phones using Bluetooth connectivity.
Different classes
There are three classes of Bluetooth: Class 1 (with a range of approximately 100 meters), Class 2 (10 meters) and Class 3 (1 meter). Experts believe that, in the coming years, all technological equipment will be able to communicate with each other thanks to the standard.
The hardware that makes up a Bluetooth system can be said to have two parts: the radio device that modulates and transmits the signal, and the digital controller (with CPU, a digital signal processor known as Link Controller and an interface processor).
Bluetooth stack
In addition to all of the above, we cannot ignore the existence of other terms that also make use of the term we are now analyzing. Among them, for example, is the concept of a Bluetooth stack, which we can specify as an application whose fundamental mission is to manage each and every one of the services offered by the aforementioned Bluetooth port .
Among the batteries of this type we would highlight Widcomm, which was the first to appear on the market, or BlueSoleil. All this without forgetting IwBT, BlueZ or Affix. These last two batteries have been created basically to be able to work with them in the Linux environment.