Is it normal for the motion frame to be showing values even when it is idle? It is just sitting on the desk and the values are:
x=-1
y=-2
z=20
this depend on how your code running.
Thanks
Albert
You are measuring the gravitational acceleration in the three dimensions.
If the accelerometer is perfectly horizontal you should have X=0, Y=0 and Z=9,81N/s². If you are sure the accelerometer is horizontal then x and y are offset you should substract from following readings.
There is a Guide to gyro and accelerometer on Arduino forum that could be of some interest.