Electromaker - Make it smart contest - Accessing Accelerometer Data via nRF Cloud API

RE: Electromaker - Make it smart contest - Accessing Accelerometer Data via nRF Cloud API

Colin Russell-Conway — Wed, 09 Mar 2022 15:34:55 GMT

Thanks Markus. While grabbing the info from the API is something I can manage, I think handling the accelerometer data might be a little above my skill level.

RE: Electromaker - Make it smart contest - Accessing Accelerometer Data via nRF Cloud API

Markus Tacker (he/him) — Wed, 09 Mar 2022 11:49:26 GMT

nRF Cloud does not support accelerometer data in the UI, it needs to be sent as a batch message, however you need to implement this, because it's currently not handled. All (batch) messages sent by your device are accessible via the ListMessages endpoint.

RE: Electromaker - Make it smart contest - Accessing Accelerometer Data via nRF Cloud API

Colin Russell-Conway — Wed, 09 Mar 2022 07:59:13 GMT

Thanks Martin. Appreciate that. I'm happy with just "there's been movement" so that should suffice, I'll enable it now.

On the nRF Cloud side is there any REST API property (I think most of the others like temp are listed under "appId") I should be looking for or is it just a standard message?

Thanks

RE: Electromaker - Make it smart contest - Accessing Accelerometer Data via nRF Cloud API

Martin Lesund — Wed, 09 Mar 2022 07:54:46 GMT

Hi Colin,

Yes, you can enable DATA_ACCELEROMETER_BUFFER_STORE in asset_tracker_v2 and it will then send the accelerometer readings to the cloud. However, there is a reason we have turned that OFF by default in the application, right now it's a bit hard to interpret the values into something more meaningful than "is there movement?". Even flip can be problematic because the up/downsides are hardcoded and only work properly on the DK. Better access to the accelerometer is something we are looking into improving.

Best regards,
Martin L.