User guide

Response: <cr,lf>00000000000
<cr,lf>OK<cr,lf>
2.2.53 AT+BTS=<string> {Set Service Name}
This writes the name to non-volatile memory. It will be used after ATZ, power cycle or
AT+BTO if it has not been issued yet. Use AT+BTS? to read it back from non-volatile
memory. An empty string (“”) will delete the string from non-volatile memory which will
force the default service to be used.
Response: <cr,lf>OK<cr,lf>
If the service name cannot be set for any reason then an error response ERROR 11 is
returned.
2.2.54 AT+BTS? {Read Service Name from Non-volatile Memory}
Reads the default service name from non-volatile memory.
Response: <cr,lf>"My ServiceName"<cr,lf>
<cr,lf>OK<cr,lf>
2.2.55 AT+BTT {Add Trusted Device}
This command is used to store the cached link key in the non-volatile database. If the
database is full it will respond with an ERROR. If the device is already in the database,
then the key is replaced.
If the link key cache is empty, that is, a pairing has not been performed since the device
was powered, then the response will be an ERROR.
Response: <cr,lf>OK<cr,lf>
or
Response: <cr,lf>ERROR<cr,lf>
2.2.56 AT+BTT? {List Trusted Device}
This command is used to list the contents of the trusted device database. The link key is
NOT displayed so the response is as shown below. If the list is empty then just the OK
response is sent otherwise an OK is used to terminate the list. Use the command ATI6 to
read the maximum size of the trusted device database.
Response: <cr,lf>12346789012
<cr,lf>12345678913
<cr,lf>12345678914
<cr,lf>OK<cr,lf>
2.2.57 AT+BTV<U><Y><bd_addr>,<uuid> {SDP Query for Service }
This command is used to interrogate the SDP database of the peer device <bd_addr> for
the service <uuid>. It results in an ACL connection and then a SDP transaction.
If the <uuid> service is present then
Response: <cr,lf>0
<cr,lf>OK<cr,lf>
If the <uuid> service is not present then
Response: <cr,lf>1
<cr,lf>OK<cr,lf>
If the device < bd_addr > cannot be reached, or is in non-connectable mode then
Response: <cr,lf>2
<cr,lf>OK<cr,lf>
If the SDP database is corrupt or invalid then
Response: <cr,lf>3
<cr,lf>OK<cr,lf>
DSH_50003_v1v3 AT Command Reference 24 of 33