User's Manual

Enhanced Class 1 Bluetooth v2.1 Module
User’s Guide
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CONN-GUIDE-BT740_v0.2
<uuid>
A 4 character UUID number consisting of ASCII characters ‘0’ to ‘9’, ‘A’ to ‘F’ and
‘a’ to ‘f’.
5.3.1 Enter Local Command Mode
Command:
^^^
Response:
<cr,lf>OK<cr,lf>
Description:
When in data + connected mode, the host can force the device into a command +
connected mode so that AT Commands can issue to the device while a connection
establishes. The S2 register specifies the character in this escape sequence, so it can
change. The escape sequence guard time sets at compile time to 100 milliseconds.
Please refer to the Dropping Connections section for more related information.
In modems this escape sequence is typically “{delay}+{delay}+{delay}+{delay}”, and
configures by default to avoid confusion when the module is providing access to a
modem.
5.3.2 Command Mode Status Check
Command:
AT
Response:
<cr,lf>OK<cr,lf>
Description:
<cr,lf>OK<cr,lf>
5.3.3 Accept Incoming Connection (Answer Call)
Command:
ATA
Response:
<cr,lf>CONNECT 123456789012,<uuid>,<<cr,lf>
Where <uuid> is the profile with the established connection.
Description:
Accept an incoming connection, which is indicated by the unsolicited string
<cr,lf>RING 123456789012<cr,lf>, where 123456789012 is the Bluetooth address of
the connecting device.
5.3.4 Make Outgoing Connection
Command:
ATD<bd_addr>,<uuid>
Response:
<cr,lf>CONNECT 123456789012,<uuid>,><cr,lf>
Or
<cr,lf>NO CARRIER<cr,lf>
Description:
Make a connection to device with Bluetooth address <bd_addr> and profile <uuid>.
The <uuid> is an optional parameter which specifies the UUID of the profile server to
attach to, and if not supplied then uses the default UUID for SPP (1101).
The UUIDs in the following table are allowed:
Profile Name
UUID
Serial Port
1101
HID
1124
HDP
Use appropriate canned HDP commands
instead