The Bluetooth technology is born with the attempt to make to converse and to interact between they devices various you like (telephones, notebook, PDA, HiFi systems, Tv, Computers, cellular, household-electric and other) without having to use a connection cable.
In this case the devices will use you a logon wireless (without threads) based on radio waves.
This type of communication demands that every Bluetooth device must integrate of the members in a position to receiving and to transmit marks them radio, on the 2,4 frequency of GHz assigned for industrial uses.
The used frequencies can vary from country to country in relation to the enforced norms in the single nations.
The two or most peripheral ones (until a maximum of 8) that they share a communication channel Bluetooth, give life to a small network wireless called Piconet.
Bluetooth is planned in order to work also in atmospheres with strong interferences of electromagnetic fields, to the aim to always guarantee reliable connections.
The communication speed is next to 1 Mbps also with dispositi to you little powerful. The devices you Bluetooth are uniforms in classes (class 1, 2, 3) to second of the supplied power.
