IIS2ICLX problem

PDegt.1 · ‎2020-12-09

Hi,

I set the sensor to 1G scale, data rate 104 Hz, while tilting from 0 to 20-25 degrees it gives sensible readings. Over that it just always shows 1G acceleration, so 45 degree angle shows as 89.

Any hints on how to fix that, or my copy might be defective?

Eleon BORLINI · ‎2020-12-10

Hi @PDegt.1 ,

are you computing the tilt angle using 1 single axis or using 2 axis?

For your reference, you can refer to the application note AN5551, and in particular to the Figure 4 in p.3: using only 1 axis (so the arcsin or the arccos instead of arctan), you would experience a drop in sensitivity after 30°:

Please let me know if it can be helpful for you.

-Eleon

View solution in original post

Eleon BORLINI · ‎2020-12-10

Hi @PDegt.1 ,

are you computing the tilt angle using 1 single axis or using 2 axis?

For your reference, you can refer to the application note AN5551, and in particular to the Figure 4 in p.3: using only 1 axis (so the arcsin or the arccos instead of arctan), you would experience a drop in sensitivity after 30°:

Please let me know if it can be helpful for you.

-Eleon

PDegt.1 · ‎2020-12-11

OK, so apparently I wasn't initializing the sensor properly. The problem with sensor not changing data over 30 degrees is solved.

Thanks.