Command
Description
+++
Switch the device from online Data mode to online
command mode while maintaining the connection to the
remote device. The characters should be send with 1000
ms guard time..
AT
Check the serial UART port settings of the adapter.
AT+VER
Inquire the current firmware version
AT+ENQ
Lists all the settings along with their brief description.
The settings include serial port, Bluetooth related and
other misc settings
AT+ACON
Enable/disable auto-connection feature in master role.
Note, it will cause a reboot.
ACON+ (Default)
Automatically connect to the adapter specified in
AT+BOND=xxxxxxx. If no device is specified then connect
to any device which is ready to accept connection.
ACON-
Disable auto-connection feature. After it is executed,
you need to execute “AT+CONN” to manually connect a
remote device.
ACON?
Inquire the current setting.
AT+CONN
Establish a connection. It is available only when the
adapter is in the manual master role.
AT+CONN
Connect to the specified bonded device. It is available
only when AT+BOND=xxxxxxxxxx is executed where
“xxxxxxxxxxxx” is the
12 hex digit string specifying
remote device bluetooth address.
AT+CONN=xxxxxxxxxxxx
Connect the adaptor to a specified Bluetooth device.
“xxxxxxxxxxxx” is 12 hexadecimal digit string specifying
remote device bluetooth address.
AT+CONNn (n=1-8)
Connect the adapter to a device in the neighborhood
found through “AT+FIND?”
AT+DROP
Drop the connection when the device is in either master
or slave role. It is only allowed when the device is
in connected state
AT+ADDR
AT+ADDR?
Inquire the Bluetooth address of the local adapter.
AT+BOND
For security purpose, this command is used to specify a
unique remote Bluetooth serial adapter to be connected.
In the master role, the adaptor pairs and connects with
the designated remote slave address. In the slave mode,
this command is a filter condition to accept the inquiry of
the master device.
AT+BOND=xxxxxxxxxxxx
“xxxxxxxxxxxx” is a string of 12 hexadecimal digits
specifying the slave Bluetooth Device address.
AT+BOND-
Restore the status in which the adapter can connect with
any remote address.
AT+BOND?
Inquire the designated address that can be paired and
connected.
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