Reply To: Quaternion Output Drift
I cannot see any easy way to calibrate your unit without connecting to the serial interface software. To do so, you will need any USB to TTL converter, we recommend something with an FTDI chip set.
I would suggest buying a USB expansion board it will make your life so much easier, although it would be a fun project to do, it really depends on the time you have to commit to the implementation.
The issue with calibrating and parsing the data with an Arduino is you would need to write a full parser and interface then pipe that through a VCOM port.
With that said redshift labs will be releasing a full Arduino interface in the coming months, however that wont help you now, but keep it in mind.