B.3.20. ath, B.3.21. at+btkey=$string, B.3.22. at+btsd – SENA Parani-SD200L User Manual
Page 35: B.3.23. at+btcsd

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Parameters
112233445566 = BD address
Description
Parani-SD200L attempts to connect to the Bluetooth device with the given BD address. To
make successful connection, the Bluetooth device must be in Page scan mode. This
attempt continues for 5 minutes.
If it fails to make connection, SD response is ‘ERROR
’.
Reference
AT+BTINQ?, AT+BTSCAN
Example
ATD000B530011FF
B.3.20. ATH
SD 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
SD 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-SD200L 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?
SD 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- SD200L saves the Bluetooth device
with its link key, generated by the pin code. The connection to a device listed in Parani-
SD200L 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
SD Response
OK
Purpose
Clear the list of Bluetooth devices sharing the same pin code