Software
navXUI
The navX-sensor automatically subtracts acceleration due to gravity from accelerometer data, and
displays the resulting linear acceleration. These measures are in units of instantaneous G, and are in
World Reference Frame.
Sensor Temperature
The Sensor Temperature indicates the die temperature of the navX-sensor IMU integrated circuit (IC).
Since shifts in gyro temperature can impact yaw accuracy, the navX-sensor will automatically perform
Gyroscope calibration whenever the sensor is still. See the
Gyro/Accelerometer Calibration
page for more
details.
Magnetic Disturbance Indicator
Once the navX-sensor Magnetometer has been calibrated (see the
whenever the current magnetic field diverges from the calibrated value for the earth’s magnetic field, a
magnetic disturbance is indicated.
Yaw Angle
The Yaw Angle is displayed in grey text if Gyro Calibration has not yet been completed. Once Gyro
Calibration is complete, the Yaw Angle text color will change to white.
Pitch/Roll Angles
The Pitch/Roll Angles are always displayed in white text, since Accelerometer calibration occurs at the
Kauai Labs factory.
Compass Angle
The Compass Angle displays the tilt-compensated compass heading calculated from the navX-sensor’s
Magnetometer combined with the tip/tilt measure from the Accelerometers.
The Compass Angle is displayed in grey text if Magnetometer Calibration has not yet been completed.
Once Magnetometer Calibration is complete, the Compass Angle text color will change to white.
9-axis (“Fused”) Heading
The 9-axis heading is displayed in grey text if Magnetometer Calibration has not yet been completed
and/or if no undisturbed magnetic readings have occurred.
Altitude
The Altitude displays the navX-sensor’s calculated current altitude, based upon the reading from the
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