Discussions

Ladies and Gents,

I apologies in advance if my topic come across newbie or ignorance which I promise to compensate for and share a fresh interesting project with all you.
I need your help becuase I had days of frustrations and suicide attempts :P . I am trying to get my head across Rotational Matrix 2D , 3D , getting into 3axes gyroscope and 3axes accelerometer , trying to experiment with.. I am yet not sure of the following :

1. Imagine You have an RC car the moves in 2 D . Perfect ok , now.. it also can go up (stable as an elevator, no of wind or need to stabilize) . and while it is hanging on top it (or in between ground and a certain hight), it can tilt like Michael Jackson's anti-gravity lean (30degrees max front or/and 30 degrees backwards) ....... 

My question is , would the Rotation Matrix (eular angles pitch yaw roll) apply to this case? .... I wish to obtain orientation and velocity if possible using the sensors I got and maybe magnetometer.

2. If so , or if not ..... How to choose the order of Eular angles when applying them to the output of 3 axes gyroscope? whether you want to determine a submarine orientation (angle of movement) , or a robot head that moves like human head, with the addition of neck flexibility to extend upward ,like a submarine eye,... what is the logic behind choosing the order ?

cheers mates