BSX Lite is very handy because it can outputs Quaternion. Although Euler angle is much less accurate than a Quaternion, and there is a problem with the Gimbal lock, there are still many Apps in reality who want to read the Euler angle directly. Of course, I also know that the BNO050 may be able to export Euler directly, but it lacks other features.
I wonder who has tried to convert the Quaternion into Euler angle, or even calculate the Euler angle directly with 9DOF? Can someone share the code?
The conversion of the Quaternion into the Attitude angle (absolute Euler angle) needs to solve a matrix, then, the solution of the Attitude angle should attach a credible range of value (Gimbal lock problem)?
I am using BSX Lite at BMX160, C# program.
In my program, floating-point operations are used for eulerbe processing. I use BSX Lite to output Quaternion is right, get the correct reading, but when I output Euler angle in the same way, I get only zero, no change. Can you tell me what caused it? Thanks!
I'm using the C#, Cortex M4 core. please see the code as follow