Hello every body,
Now, I am using MPU6500 with Arduino platform, and the official driver motion_driver-5.1.3 has been migrated into the Arduino platform. For now, it seems everything goes well. However I have a question, what is the initial Quaternion value for MPU6500? Theoretically, the initial Quaternion value (w, x, y,z) should be (1, 0, 0, 0) I think. But no matter how I set the posture of the MPU module, I can not obtain the value of (1,0,0,0), by the way the DMP was enabled. And it seem that the maximum w value is 0.5. I am a little confused! So what's the initial or the reference quaternion value of the MPU6500? If some one know it, please share it with me?
(Considering the error, for now, I just assume that Quaternion (w, x, y, z) value (0.5, 0,0,0) is the initial value)
I would greatly appreciate for you generous!
Sincerely!