User guide

RN Commands Version 4.25, 11/1/2007 Page 20 of 25
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7 COMMON PROBLEMS and QUESTIONS:
My Bluetooth client can see the FireFly and its serial service, but I can’t connect: This is
most likely caused by a security setting on your client. FireFly does support authentication by
default if the client requires it (using default pincode of “1234”,) but for ease of use, you may
want to turn security off on your client. Some clients have these setting off by default, others
have them on. To check and disable security:
From your PC desktop, click My Bluetooth Places, go to the Bluetooth Device configuration (or
Advanced Configuration) drop down menu, click on the client applications tab, Select the
Bluetooth serial port application name, and click on the properties button, if “secure
connection”, or “authentication”, or “encryption” is checked, un check it.
Changing the clients COM port: Widcomm stack, the most common stack out there allows
you to connect to FireFly using a “Virtual COM” port mapper. The software installs with a
default COM port, usually COM3, COM4, or COM5. To change this setting:
From your PC desktop, click My Bluetooth Places, go to the Bluetooth Device configuration (or
Advanced Configuration) drop down menu, click on the client applications tab, Select the
Bluetooth serial port application name, and click on the properties button, then you can change
the com port.
Connecting to more than one FireFly from the same client at the same time: Bluetooth
allows 7 devices at a time in a piconet. The Widcomm stack allows you to create multiple
instances of serial port profile and connect to multiple FireFlys at the same time. To do this:
From your PC desktop, click My Bluetooth Places, go to the Bluetooth Device configuration (or
Advanced Configuration) drop down menu, click on the client applications tab, Select the
Bluetooth serial port application name, and click on the ADD COM port button, then you can
add another Bluetooth serial port and assign it to another virtual com port (such as COM9).