Spinning in Autonomous

[weilin]

After you figure out correct rotation direction for the turn like @Mentor_355U said, please, take a look at this topic:

Strange problem with autonomous

As others have suggested, the call to RightBackDriveMotor.rotateTo will block if the motor never reaches its target position. A call to rotateTo instructs the motor to move to the requested position. The code then monitors status of the motor until what we call the “zero position flag” is set or a timeout condition is reached. When a motor instance is created the timeout is actually set to disabled, there seemed to be no good value for it and we leave it to your code to call the setTimeout me…

You may need to add a setTimeout() call to ensure it never gets stuck with rotateFor().