WiTilt Data - What does it mean?

Wireless & IoT
1

I’s using a WiTilt V3 and am a little confused as to what the data feed is actually telling me.

I’ve got X and Y values which seems to be orientation data.

I’ve got a Z value which appears to measure gravity changes on the Z axis and an R value which I think is the rate of rotation about Z.

The WiTilt documentation shows 4 formulas which suggest X, Y and Z values are acceleration values and show how to get g’s from them - but the values I get do not show this at all - just rotation in X and Y.

Can somebody help with what the data is actually showing and if it can be used to show both rotation and acceleration in a given plane?

TIA

2

I believe you can set the Witilt into G Mode, which should display X Y and Z G forces. based on your orientation, X Y or Z will read gravity. I think then you take those G values and they can be translated into banking angles.

3

Hi DLDude,

Thanks for your reply. I’ve got the WiTilt in binary mode and the readings I am getting do relate to the X/Y orientation. Z however, appears to give me acceleration readings in 1 plane (vertical) and the R reading seems to be the rate of rotation about Z…

I was under the impression I could get X and Y acceleration readings to track the WiTilt’s translation, I’m guessing this was wrong and I can only do tilt (as the name would suggest).

Thanks for your help.

4

You need to integrate the values (twice) to get distance from acceleration data.

Leon