Thank you so much for your kindly reply. I'm now using the BNO055 IMU to control the orientation of a quadcopter and I need to measure the Euler angle of the quadcopter with the North-East-Down reference frame. how can I change the setting to get the Euler angle with respect to the N-E-D reference frame? what I am doing now is setting the sensor reference frame as default, reading the Quaternion value from the IMU, and converting the quaternion I get to Tait-Bryan z-y-x angles. by doing these, is the angle I get the Euler angle with respect to the N-E-D reference frame?
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