Orientation Visualizer doesn't show pitch & roll properly

[PaulStoffregen]

The Processing-based orientation visualizer examples doesn't display properly. Pitch and roll are only shown independently when yaw is 0 or 180 degrees. When yaw is 90 degrees, they display the same!

I made this video demo to show the problem:

https://www.youtube.com/watch?v=SHJ2n1Kwe58

Here is the page where the orientation visualizer code appears.

https://www.arduino.cc/en/Tutorial/Genuino101CurieIMUOrientationVisualiser

[PaulStoffregen]

I've created a fixed version.

https://github.com/arduino-libraries/MadgwickAHRS/blob/master/extras/Visualizer/Visualizer.pde

[eriknyquist]

Thanks @PaulStoffregen, I'll look at integrating your corrected version.

[eriknyquist]

@PaulStoffregen sorry about the delay on this, I finally got round to trying this out today. You're right, the Processing sketch given produces wrong movement for me too. However, when I tried your Processing sketch, I got no movement at all.

Since we've had a release since your original posting, would you mind trying this again with the latest corelibs, IDE and processing?

[PaulStoffregen]

Sorry, I put all that motion sensor stuff away a couple months ago, to focus on another really important project. I will look at this again, but probably not until after summer.

[eriknyquist]

OK, no worries I'll take a look at it.

[bontempos]

Hello, thanks guys for taking a look at it..
just to make sure I am not alone:
Madgwick library available from arduino's official link is different from this, right?

Also, this new (4 month ago) library version will not compile, right?

[eriknyquist]

@bontempos, I am not sure about Paul's version of the library; I only tried "official" one from the Arduino tutorial. But, I'll try Paul's one and let you know what I get.