On Thursday, March 22, 2012 1:19:25 PM UTC-4, Kimmo Hytoenen wrote:

Setting up environment for these
settings in not easy, otherwise we would have asked people to
do their own settings.

I'm having that problem, too, with a similar if not the same BT module that takes TTL level UART data. Can't change the baud rate without setting up a level converter.

We will program these to operate on
19200b speed, since I suppose that faster speed does not really
give any advantages, other than downloading logger files.

Intelligent varios can be configured to supply NMEA data at different rates.. 19200 should be sufficient.

That said, without baud rate switching (as Tobias pointed out), you'll run into trouble when connecting this device to something older like the Volkslogger (4800bps normally, but a higher speed for bulk up/downloading). Because the device on the RS232 side is dumb, and the device on the BT end is smart, I'm not sure how one can make this work with the hardware you have.