cube with MPU6050 to switch by pitch and roll

haha - the commenting effort comes from my day job (C++ developer) - but if there is enough space - why not to put some comments ;)
I try out to smooth the rotations and side detection by low pass filter

// some global stuff
var alpha = 0.5;
var mySmoothValue = 0;

// low pass filter to get smooth value without high peak changes
var newValue = ... // something you want to smooth ;)
mySmoothValue = newValue * alpha + (mySmoothValue * (1.0 - alpha));