XYZ values from AIS2IH are inconsistent with actual values

[snack]

Hi,

Post-development testing of the acceleration sensor reveals that the collected XYZ axis values are inconsistent with the actual physical acceleration values, and one axis continuously outputs a value of 0.

What is the specific corresponding relationship between the sensor’s feedback value and the actual physical value?

I also hope you can provide relevant technical parameters (such as sensitivity, zero offset) and calculation formulas for reference, so as to help us troubleshoot the problem quickly.

thank you!!

[snack]

We suspect that there is a problem with our connection method. Could you help us assess whether there is anything wrong with the connection method?

[Andrew Neil]

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@snack wrote:

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 When the chip is shaken, the acceleration values do not change much.

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Maybe that's just a false expectation of how much they should change?

Hence the recommendation to use a phone to give you some point of independent reference.

[Andrew Neil · Accepted solution]

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@snack wrote:

We suspect that there is a problem with our connection method.

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In that case, you would see it in the raw data.

Have you compared against a known-good implementation - such as an ST evaluation/development board?

eg, STEVAL-MKI218V1

via: https://www.st.com/en/mems-and-sensors/ais2ih.html#tools-software

[snack]

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In that case, you would see it in the raw data.

Have you compared against a known-good implementation - such as an ST evaluation/development board?

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Ok, I'll try this method. Refer to the known good implementation.
Thank you very much!!