H3LIS331DL high g spikes when not in motion

[DRich.12]

Using the H3LIS331DL in 200g scale. While recording readings overnight every once in a while I will record a high g spike (over 75g) where the normal reading is around 1g. Anyone else have this issue or have seen this happen?

Doug

[DRich.12]

Looks like I am not handling the INT1 pin correctly. Possibly reading accelerometer when it is not ready. Will test again and see if I fixed it.

[Eleon BORLINI]

Hi Doug, did you follow the suggestion guideline for pin HW connections? I agree with you that this is not a mechanical but an electrical spike and that it is always better to set INT1 and INT2 pin to defined states, e.g. taking as example the eval board for the H3LIS331DL especially if you are not using them in you application. Regards

[DRich.12]

The issue I had was on my microcontroller (not setting the I/O connected to INT1 as a digital input). Seems to be working now.