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Promi-ESD User Manual – Appendix A AT Commands
A-6
© 2005 Initium Co., Ltd. All rights reserved.
Parameters
n
=0: MODE0 (Default)
n
=1: MODE1
n
=2: MODE2
n
=3: MODE3
Description When the operation status is ‘Pending’ currently, change
the status to ‘Standby’ with AT+BTCANCEL prior to this
command.
To take effect of this command, ATZ or power off and on.
Reference AT+BTINFO?
Example AT+BTMODE,2
OK
ATZ
8 +++
Response OK
Purpose Convert the operation status of ‘Connect’ to ‘Standby’
Description In ‘Connect’ status, data from host is transmitted to the
other side Bluetooth device, and any AT command is not
accepted but this command, which is not echoed on the
screen.
When Promi-SD encounters a character ‘+’ from host, it
stops the data transmission and waits for next 2
characters. If the next 2 characters are both ‘+’, it restart
to transmit data including the first ‘+’ as well. If not, it
converts the operation status to ‘Standby’.
If the data from host includes ‘+++’, it will convert the
operation status to ‘Standby’ unexpectedly. Notice that
Promi-SD holds data transmission when it encounters
‘+’, until receiving next character.
‘+’ is an escape sequence character by default, which is
changeable by AT+SETESC.
Reference AT+SETESC, ATO, AT+BTCANCEL
9 AT+SETESC,nn
Response OK
Purpose Change the escape sequence character
Parameters
nn
=Decimal number of ASCII code (Default=43)