Promi SD™ User Manual ver 1.7
www.initium.co.kr
24
2.2.4 Releasing the existing Bluetooth connection
Once connected successfully, the SD becomes transparent to any serial
applications on hosts. Data may be transferred within the radio range of the
SD. According to SD terminology, this operating status is called ‘ONLINE
STATUS’. In ONLINE STATUS, all AT commands are treated as characters
and are ignored by the command interpreter of the SD. Therefore to escape
from ONLINE STATUS enter escape string ‘+++’.
1. Transition from ONLINE STATUS to STANDBY STATUS by entering ‘+++’
string to the SD. Check the current SD status by entering the
‘AT+BTINFO?’ command. The SD status should display CONNECT
STATUS.
2. Release the current Bluetooth connection by entering ‘ATH’ command. Once
disconnected successfully, the SD returns the ‘DISCONNECT’ message.
ATH
OK
DISCONNECT
+++
OK
AT+BTINFO?
000B530000A9,PSDv2g-0000A9,MODE0,CONNECT,0,0
OK