Bluetooth is an international standard specification for near-distance /low-electricity/ high-
reliability/low-price wireless communication
Bluetooth uses the internationally permitted 2.4GHz ISM band(Industrial,Scientific,Medical).
Bluetooth uses a 1Mbps ~ 3Mbps wireless transmission speed
Bluetooth consists of Master/Slave configuration as the relation between Master and Servant
and one bluetooth device can be connected to Maximum 7 devices on the basis of ACL.
(ACL : Asynchronous Connectionless)
Bluetooth guarantees a stable wireless connection even in much noise environment by using
Frequency Hopping Method.
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