.. instead of using a 'absolute' value, see page 27 of ADXL362 Rev.E datasheet
by the way: what is meant by 'absolute value' ? How is this value calculated?
Thanks for your question, all 3 axes will be enabled for activity/inactivity detection on the ADXL362. An "Absolute" value is relative to a "Referenced" value. When using absolute activity detection, acceleration samples are compared to a user set threshold to determine whether a motion is present. For example, if a threshold of 0.5 g is set and the acceleration on the z-axis is 1 g for longer than the user-defined activity time, the activity status asserts.
I hope this helps.
Hi! Thank you for the quick and helpful reply. I have one follow-up the check if I got it right:
For referenced mode, is it true that the ADXL362 activates when
Acceleration_X + Acceleration_Y + Acceleration_Z > Threshold_Value ?
Another possible variant: The left side also could be a squared Pythagorean triple to indicate the length of the acceleration vector.
Regarding the "referenced" mode, the equation should be ABS(Acceleration − Reference) > Threshold for the user-defined activity time period to trigger an interrupt and this is for any of the three axes. It's not based on a sum or RSS value of all three axes.
Retrieving data ...