40
B.3.20. ATH
Response
OK
DISCONNECT
Purpose
Release the current connection
Description
The current Bluetooth connection will be disconnected. It takes about 30 seconds to detect
an abnormal disconnection such as power off and moving out of service range.
Reference
ATD, AT+BTSCAN
B.3.21. AT+BTKEY=$string
Response
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-ESD generates a link key which is used in actual authentication process
Reference
AT+BTCSD, AT+BTFP, AT+BTSD?, AT+BTSEC, ATZ, AT&F
Example
AT+BTKEY=
”
apple
”
B.3.22. 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-ESD saves the Bluetooth device with
its link key, generated by the pin code. The connection to a device listed in Parani-ESD can
be made automatically without the authentication process. The maximum number kept on
the list is 5.
Reference
AT+BTCSD, AT+BTFP, AT+BTKEY, AT+BTSEC, ATZ, AT&F
B.3.23. 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 Powercycle the unit.
Reference
AT+BTFP, AT+BTKEY, AT+BTSD?, AT+BTSEC, ATZ, AT&F
B.3.24. 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-ESD asks for the pin code every time a connection is made. This can
be used to increase security.
