SENA Parani-BCD110V3 - Manual (Page 64)

Sena Technologies, Inc 64
B.3.37. AT+BTKEY=$string
Response Confirm 
 OK
Purpose Change pin code
Parameters $ string = New pin code (Default=1234)
Description Pin code is a string, which allows up to 16 alpha-numeric characters. Based on this
pin code, Parani-BCD110V3 generates a link key which is used in actual authentication
process
Example AT+BTKEY=apple
B.3.38. AT+BTSD? 
Response  112233445566
 OK
Purpose Display a list of Bluetooth devices sharing the same pin code
Description Once a connection is made with a pin code, Parani-BCD110V3 saves the Bluetooth
device with its link key, generated by the pin code. The connection to a device listed
in Parani-BCD110V3 can be made automatically without the authentication process.
The maximum number kept on the list is 8.
B.3.39. AT+BTCSD
Response  OK
Purpose Clear the list of Bluetooth devices sharing the same pin code
Description This clears the list of Bluetooth devices linked with the same key in flash memory. To
take effect, the ATZ command must be used or Power cycle of the unit.
B.3.40. AT+BTFP,n
Response  OK
Purpose Set generation of link key every time of connection
Parameters n=0: Inactivate (Default)
n=1: Activate
Description If n is set to 1, Parani-BCD110V3 asks for the pin code every time a connection is
made. This can be used to increase security.