Users Manual

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ERR:7\r\n（Parameter not set）
Content：Query the MAC address of the target device in master mode,
little-endian.
Command format： AT+DISCONN\r\n
Return value： OK\r\n
ERR:CODE\r\n
Content： Disconnect the current Bluetooth connection. It is valid in the
connection state.
5.13 Transmit Power Operation Command
Command format： AT+RFPM=4\r\n
Return value： OK\r\n
ERR:CODE\r\n
Content： Modify the transmit power of the module to 4dBm. This command can
be operated in a disconnected state. Returning OK indicates that the power reset
is successful, and returning ERR indicates that the power reset fails. The reason
may be that the set power is not in the power level list.
Command format： AT+RFPM?\r\n
Return value： 4dBm\r\n
Content： Query the current transmit power configuration of the Bluetooth
module. The factory default is 4dBm.
Note: The transmit power levels currently supported by the module are as follows:
Power level
Power value
0
8dBm
1
4dBm
2
0dBm
3
-4dBm
4
-8dBm
5
-12dBm
6
-16dBm
7
-20dBm
5.14 Restore Default Configuration Command
Command format： AT+DEFAULT\r\n
Return value： OK\r\n
Content： Restore the configuration parameters of the module to the default
parameters, and the MAC address is also restored to the factory default address.
Returning OK means that the module starts to restore the factory mode; it will be