Ehong EH-MA41, User Manual

Page: 13 / 26

EH-MA41 User Guide
13-26
5.1.10. NM
—Query or change the local friendly name
5.1.10.1. Description:
This command can query or change the local friendly name of Bluetooth module. Once changed, the new friendly name
will take effect at next time the remote device get local name and until the next time the friendly name is changed by this
command. It means the Bluetooth module will remember the friendly name, and even if the Bluetooth module has been
powered off, the friendly name will not be lost.
If the parameter is not presented, the Bluetooth module will report current friendly name by the Indicator NM.
5.1.10.2. Syntax:
Synopsis:
AT+NM[=Name]<CR><LF>
5.1.10.3. Parameter Description:
Parameter Description Mandatory Comments
Name
The new local friendly name of the
Bluetooth module.
Length: 1
—30 characters
Default: Per software version.
O
5.1.10.4. Examples:
Ex. 5.26. To query current local friendly name of Bluetooth module:

AT+NM<CR><LF>

query current local friendly name.

NM=EH-MA41<CR><LF>

report current local friendly name,
it’s “EH-MA41”.
Ex. 5.27. To change the local friendly name of Bluetooth module:

AT+NM=MY_BT_DEVICE<CR><LF>

change the local friendly name to
“MY_BT_DEVICE”

OK<CR><LF>

response from the module to indicate the command is adopted.
Notes:
For MB18 module, the module will append
“_L” at the end of given name as the BLE device name. That means, in the
above example, the BLE device name will be changed to
“MY_BT_DEVICE_L”.
5.1.11. BR
—Query or change the UART baud rate
5.1.11.1. Description:
This command can query or change the UART baud rate of Bluetooth module. Once changed, the new baud rate will
take effect immediately and until the next time the baud rate is changed by this command. It means the Bluetooth module
will remember the baud rate, and even if the Bluetooth module has been powered off, the baud rate will not be lost.
If the parameter is not presented, the Bluetooth module will report current baud rate by the Indicator BR.
5.1.11.2. Syntax:
Synopsis:
AT+BR[=BaudRate]<CR><LF>
5.1.11.3. Parameter Description:
Parameter Description Mandatory Comments