>>> 1.2 How
BT2RM
Works
2
BT2RM
Bluetooth Module
Bluetooth-enabled Devices
1.2.1
In Bluetooth Connection
The term
“
Bluetooth
”
refers to a worldwide standard for the
wireless exchange of data between two devices. In order to ex-
change data, two Bluetooth devices must establish a connection.
Before a connection is established, one device must request a
connection with another. The second device accepts (or rejects)
the connection. The originator of the request is known as
the client. The device that accepts (or rejects) the request is
known as the server. Many Bluetooth devices can act as both
client and server. Every Bluetooth device that provides a
service must be prepared to respond to a connection request.
Bluetooth soft- ware is always running in the background on the
server, ready to respond to connection requests.