I reading about this topic, and I can't understand why are generally used this three sensors together. I mean, I know that each one has some advantages and disadvantages that are reduce working with this three components together but I don't know what they are. Can someone give me an idea?
For what I saw, even in some cases its only used the accelerometer and the magnetometer, without the gyroscope. How do the people to know what combination use? when they have what needs?
And the other hand, I read too that a magnetometer can be of 2 or 3 axes, and I don't understand what's the difference