[Richard100]

Greg - I realize this is an old post. There is mention about how a gyro center voltage (for rate) is determined ... specifically that the Gyro Open vi polls the gyro for two seconds for its calibration. I gather that this would average the gyro voltage over the two seconds and save it as the reference voltage for a zero deg/sec turn rate.

I took a look at the current Gyro Open (WPI library included with LabVIEW 2012), and am not seeing this polling operation. In fact, it seems to expect you to provide this center voltage, although the vi has an I/O design apparently intended to allow you to customize the use and time period of this calibration. There is also Honeywell compass and SparkFun IMU code that looks ... unfinished (to me). I suppose the WPI library has gone through additional development since the original post, but now I'm not sure how this is supposed to work.

How is the gyro center voltage for zero deg/sec determined today?
Is IMU support in development?
Is there a reference describing how these vi's are supposed to work under the hood?

Thanks