Smart Machine Smart Decision
SIM800 Series_Bluetooth_Application_V1.02
20
2014-06-30
Response
OK
Write Command
AT+BTVGM=<g
ain>
Parameter
<
gain
> MIC gain level
This command is used set MIC volume when the module is connected
with smartphone as an earphone
Note
For some smartphone,after connected with BT earphone,the current MIC
volume may not be transmitted to earphone,thus the return value of the
read command may be 0.But after setting once,the value would be correct.
2.20.
AT+BTATD Dial voice call
AT+BTATD Dial voice call
Response
+BTATD: (<number>
length range
)
OK
Test Command
AT+BTATD=?
Response
OK
Write Command
AT+BTATD=<nu
mber>
Parameter
<
number
> phone number
Module as earphone connected to smartphone, this command could make
an outgoing call
Note
2.21.
AT+BTRSSI Get RSSI of connected BT device
AT+BTRSSI Get RSSI of connected BT device
Response
+BTRSSI: (
list of supported
<device ID>
s
)
OK
Test Command
AT+BTRSSI=?
Response
+BTRSSI: <rssi>
OK
Write Command
AT+BTRSSI=<d
evice ID>
Parameters
<device ID>
Connected Device ID
<rssi>
-127…0 RSSI value of BT device
Note
RSSI value is negative, the smaller value represents the worse signal
