www.USconverters.com
USconverters.com
Copyright ©
USconverters.com | Arizona | USA
46
Q: How can I keep the COM port open at all times? I have created a link using a USB
Bluetooth dongle and a UCBT232B and it appears as the COM port does not open until
my application software tries to connect to my serial device.
A: When creating a link with a USB Bluetooth dongle or built-in Bluetooth the
UCBT232B/EXA will be the Slave and the USB Bluetooth dongle (or built-in Bluetooth)
in the PC will be the Master. The Master or the application at the Master will control the
Slave. This is cannot be changed since this is how the Bluetooth SPP works.
To keep a port open at all times you can instead create a link using two
UCBT232B/EXA’s, this will create a Master and a Slave UCBT232B/EXA which will
work independent from the PC thereby keeping the port open at all times.
Q: I found that the UCBT232B/EXA generates a connect and disconnect string upon
changes in Bluetooth state as following: CONNECT : C485 08 177441 DISCONNECT :
C485 08 177441. This string causes my serial device (a telescope) to enter into a bad
state which requires a power cycle to recover from. Would it be possible to avoid
generating the character string?
A: Yes, please refer to the 'PROMPT=N' command. This parameter is by default set to
“Y”, if you change it to “N” then the character strings will no longer be present and no
longer cause problems with your serial device.
Q: Does the UCBT232B/EXA work with iPhone/iPad/iPods?
A: The iPhone/iPad/iPods does not support the SPP (Serial Port Profile) so currently the
UCBT232B/EXA does not work with iPhone/iPad/iPods.
Update December 2012: We are working on a new version of the UCBT232B/EXA
which will be compatible with iOS for iPhone/iPad/iPods, unfortunately we currently do
not have a release date.
Bluetooth V4.0 has support for newer versions of smart phones with iOS. Older versions
of iOS is not compatible with Bluetooth V4.0.
