User's Manual

Enhanced Class 1 Bluetooth v2.1 Module
User’s Guide
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CONN-GUIDE-BT740_v0.2
5.3.21 Remove Trusted Device
Command:
AT+BTD<bd_addr>
Response:
<cr,lf>OK<cr,lf>
Or
<cr,lf>ERROR nn<cr,lf>
Description:
This command removes the specified device from the list of trusted devices in the non-
volatile database. If the device is not in the database then the response is still an OK.
Error response is for when the address is not a 12 character hex string.
5.3.22 Remove All Trusted Devices
Command:
AT+BTD*
Response:
<cr,lf>OK<cr,lf>
Or
<cr,lf>ERROR nn<cr,lf>
Description:
This command removes all devices from the list of trusted devices in the non-volatile
database. The device does not ask for confirmation.
WARNING: If you make a connection, the link key caches in the underlying stack. So
if you subsequently delete the key using AT+BTD* and immediately
request an authenticated connection to the same device, then the
connection may be established. To ensure this does not happen, send
ATZ after the AT+BTD*.
5.3.23 Get the Remote Friendly Name
Command:
AT+BTF<bd_addr>
Response:
<cr,lf>Friendly Name
<cr,lf>OK<cr,lf>
Or
<cr,lf>ERROR nn<cr,lf>
Description:
This command gets the remote friendly name of the specific address.
If the friendly name has non printable characters (including the character “) then those
characters escape into a 3 character ‘\hh’ sequence.
5.3.24 Enable Connectable Mode
Command:
AT+BTG
Response:
<cr,lf>OK<cr,lf>
Or
<cr,lf>ERROR nn<cr,lf>
Description:
Enable page scanning only and wait for a connection from any device. Inquiry scans
are disabled.
The page scan window and interval timing derives from S Reg 9009 and 9010.
Use ATi21 and ATi22 to determine the discoverable and connectable modes at any
time.