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If your gyro is returning values of 8 for the raw gyro rate then you may have the same problem as the other post. Changing the calibration values will not cause the gyro to return values of 8 for the raw values. This most likely means that the gyro is not powered and the irobot create is reading the noise on the line.

One of three senarios can cause the gyro not to be powered:

  1. The irobot create did not power on correctly. Try power cycling the irobot create.
  2. The power board is not seated properly. Try pressing down on the power board to make sure it is properly seat on the connector.
  3. There is an electrical problem with the power board or irobot create. Try following the steps listed in this question http://answers.ros.org/question/2024/turtlebot-bad-gyro-calibration

If your gyro is returning values of 8 for the raw gyro rate then you may have the same problem as the other post. Changing the calibration values will not cause the gyro to return values of 8 for the raw values. This most likely means that the gyro is not powered and the irobot create is reading the noise on the line.

One of three senarios can cause the gyro not to be powered:

  1. The irobot create did not power on correctly. Try power cycling the irobot create.
  2. The power board is not seated properly. Try pressing down on the power board to make sure it is properly seat seated on the connector.
  3. There is an electrical problem with the power board or irobot create. Try following the steps listed in this question http://answers.ros.org/question/2024/turtlebot-bad-gyro-calibration