EH-MA41 User Guide
7-26
AT+AD<CR><LF>
5.1.2.3. Examples:
Ex. 5.4. To query the Bluetooth address of local module:
AT+AD<CR><LF>
query the Bluetooth address of local module.
AD=00189600ABCD<CR><LF>
report the Bluetooth address is 00:18:96:00:AB:CD.
5.1.3. TP
—Query or change the Tx Power
5.1.3.1. Description:
This command can query or configure the transmit power of Bluetooth module. Once configured, the configuration will
take effect immediately and until the next time the module is configured. It means the Bluetooth module will remember
the configuration, and even if the Bluetooth module has been powered off, the configuration will not be lost.
If the parameter is not presented, the Bluetooth module will report current transmit power configuration by the Indicator
TP.
5.1.3.2. Syntax:
Synopsis:
AT+TP[=DefaultTx][,MaximumTx]<CR><LF>
5.1.3.3. Parameter Description:
Parameter
Description
Mandatory or
Optional
Comments
Default Tx
Default TX power in dBm. The
default TX power used for
paging, inquiry, and their
responses, and as the initial
power for new ACL links.
Value: a 8 digits signed number
Default: 00.
O
The values of this
parameter will
always be
rounded to the
next available
value in the radio
power table.
Maximum Tx
Maximum TX power in dBm.
Bluetooth power control may
raise the TX power up to this
value.
Value: a 8 digits signed number
Default: 00.
O
The values of this
parameter will
always be
rounded to the
next available
value in the radio
power table.
Notes:
Please do NOT change the default configuration of Tx Power if not necessary.
5.1.3.4. Examples:
Ex. 5.5. To query current Tx Power configuration of Bluetooth module:
AT+TP<CR><LF>
query current Tx Power configuration.
TP=04,04<CR><LF>
report current Tx Power configuration: default Tx Power is 4dBm and maximum Tx
Power is 4dBm.
Ex. 5.6. To configure the
Tx Power
of Bluetooth module:
AT+TP=FC,00<CR><LF>
configure the Tx Power, set default Tx Power to -4dBm(FCh = -4), set the maximum
Tx Power to 0dBm.
TP=FC,00<CR><LF>
response from the module to indicate the command is adopted and report the real
Tx Power configuration after rounded.
5.1.4. CD
—Query or configure the Class of Device
5.1.4.1. Description:
This command can query or configure the Class of Device (COD) of Bluetooth module. Once configured, the
configuration will take effect immediately and until the next time the module is configured by this command or the module
is rebooted. It means the Bluetooth module will not remember the configuration, and after the Bluetooth module has been
powered off, the configuration will be lost.
If the parameter is not presented, the Bluetooth module will report current COD by the Indicator CD.
