Motion Detecion Bosch Accelerometer

AdriGL · July 2017

Hi,

I'm using the Any Motion Detection of the Bosch accelerometer, but i'm not understanding it's behaviour.

If you set the Accelerometer at 100Hz, and set the count at 100 samples at 0.5g, it means that if the board is one second at 0.5g or more, the interrupt is fired, isn't it?

Because i'm testing it, but the behaviour isn't that. With a movement of less than half a second, it says that it's in movement.

Maybe i'm not understanding the meaning of the count variable?

Thanks.

Eric · July 2017

Looking at the spec sheet, the count can only be between 1 - 4, which the API apparently does not enforce or mention.

AdriGL · July 2017

Ok, i'll try that.

I've searched that info in the Documentation (https://mbientlab.com/androiddocs/latest/accelerometer_bosch.html)

and in the Reference (https://mbientlab.com/docs/metawear/android/latest/) too but it's not there.

Can you pass me the link of the spec sheet please?

Thanks.

AdriGL · July 2017

Now i'm using the significant motion detection of the BMI160, I've configured the prooftime at 2 sec, and the skiptime at 3 sec, but in the same instant that i move the board, it triggers, and doesn't wait, like if the proof and skip time were 0.

Any idea of what is happening?

Thank you.

PD: Should I open a new thread in the forum for this question?

Eric · July 2017

Sensor spec sheet is linked in the BMI160 section (https://mbientlab.com/androiddocs/latest/accelerometer_bmi160.html).

Post the full accelerometer code you are using and I can try it out on my side.

AdriGL · July 2017

Today I've done more tests and works fine, so yesterday I did something wrong.

Thanks for everything.

Motion Detecion Bosch Accelerometer

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