How to log internal sensor data on iOS?

I have XGPS160 as the external GPS device.

I have the internal sensor enabled as well.

From recorded sessions, the acceleration from GPS only. The G value is always less than other laptimer device I have. Can RaceChrono log the acceleration from internal iphone sensor rather than XGPS160? Or from both would be nice.



  • Current version of RaceChrono calculates the G values from the GPS, so they are theoretical. The real G values from accelerometer will be a new feature soon.
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