public void retrieveBoard() {

In the oncreate function

https://mbientlab.com/androiddocs/latest/sensor_fusion.html#configuration

Hello,I'm trying to write an Android App that chnages the LED color depending on Data I get with a frequency of 60 Hz.

            #c.gpio.read_gpio(3)

Hrm, I wonder if this is simply just a misunderstanding of which axes are pitch, roll, and yaw, see:https://mbientlab.com/community/discussion/comment/4632/#Comment_4632

https://mbientlab.com/iosdocs/latest/settings.html#connection-parameters

https://stackoverflow.com/questions/46435965/metawear-cli-application-on-macosx/46439794?noredirect=1#comment79838341_46439794

https://mbientlab.com/community/discussion/comment/4990/#Comment_4990

http://mbientlab.com/androiddocs/2/metawearboard.html#connection-state

http://community.mbientlab.com/discussion/comment/5030/#Comment_5030

span.s1 {font-variant-ligatures: no-common-ligatures; color: #c2349b}

See this post from Matt.http://community.mbientlab.com/discussion/comment/1923/#Comment_1923

http://community.mbientlab.com/discussion/comment/3825/#Comment_3825

http://community.mbientlab.com/discussion/comment/3825/#Comment_3825

My MetaMotionR runs the latest firmware 1.3.3 and I'm using the Visual Studio 2017 Enterprise Edition with installed .NET framework 4.6.1 , 4.6.2 and 4.7 (so my c#compiler should support c# 7.0 featur

You need to characterize the battery voltage as indicated in the other thread to be able to estimate battery life.http://community.mbientlab.com/discussion/comment/4794/#Comment_4794

I'm not exactly sure what @ivancap did in his thread (http://community.mbientlab.com/discussion/comment/4483/#Comment_4483) but based on that post, I assume he computed a rotation quaternion that maps

Some users in this thread have successfully made console apps that call into the WinRT API using C#.http://community.mbientlab.com/discussion/comment/3434/#Comment_3434

The distorted magnetic fields is most likely due to the coin cell battery.  See this post for demagnetizing the battery.http://community.mbientlab.com/discussion/comment/2972/#Comment_2972