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IMU failures

INS not calibrated​

The offsets of one or all of the accelerometers are zero, therefore the accelerometers need to be calibrated.

Accels not healthy​

One of the accelerometers is reporting that it is not working correctly, which is usually a symptom of a hardware failure.

Accels inconsistent​

Accelerometers are reporting accelerations that differ by more than 1m/s/s. Accelerometers need to be re-calibrated or there may be a hardware failure.

Gyros not healthy​

One of the gyros is reporting that it is not working correctly, which is usually a symptom of a hardware failure.

Gyro cal failed​

The gyro calibration failed to capture offsets.

Common Causes:​

  • Movement during calibration: Occurs when the Drone moves while calibrating (indicated by flashing red and blue lights).

  • Hardware failure: A less common cause but worth considering if the issue persists.

Resolution Steps​

  • Unplug and reconnect the batteries.
  • Ensure no movement is introduced to the Drone during calibration.
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If the issue continues despite following these steps, it might indicate a hardware problem, and you should contact the manufacturer.

Gyros inconsistent​

Two gyroscopes are reporting rotation rates that differ by more than 20 degrees/s. Gyros need to be re-calibrated or there may be a hardware failure.