7.3 Master Role Configuration
You can use “AT+ROLEM” to change the adapter to the master role.
When the adapter is in the master role, you can use “AT+ACON-” to
manually set up a connection and “AT+FIND?” to find the device you
want to connect.
7.4 Configure Master-Slave adapter pair
Please refer to configuration utility software (Section 8) to configure a
master slave adapter pair. Once the configuration is done, the pair will
connect to each other automatically.
7.5 3 wire configuration
The default configuration is the 3 wire configuration in which only
Tx, Rx and GND lines are used. Set the 3 wire configuration by
sending AT+FLOW- and AT+MODEM- command.
7.6 5 wire configuration (Tx, Rx, GND, RTS, CTS)
Set 5 wire configuration which uses RTS, CTS flow control signals by
sending AT+FLOW+ and AT+MODEM- command. RTS, CTS status is
not transferred wirelessly over Bluetooth link to the remote side.
7.7 7 wire configuration (Tx, Rx, GND, RTS, CTS, DTR, DSR)
Set 7 wire configuration by sending AT+FLOW+ and AT+MODEMR
command. RTS, CTS lines are used for local flow control between
device and adapter. DTR, DSR lines are used for handshaking
between local device and remote connected device. The DTR, DSR
line status is transmitted wirelessly over bluetooth link
For all settings refer section 7.9
7.8 AT Command Set
The following is the AT command set for the local adapter in the
command mode (that is, the local adapter is in the disconnection state).
All the commands and parameters are case insensitive.
Please note “AT+FIND?” command is available only when the adapter is
in the manual master role. In other words, you should send
“AT+ROLEM”, “AT+ACON-” before sending “AT+FIND? command“
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