How to perform aws_fota using asset tracker application

RE: How to perform aws_fota using asset tracker application

Håkon Alseth — Fri, 19 Jun 2020 09:03:47 GMT

Hi,

[quote user="venkatesh dyagala"]Is there a possibility to use AWS and nrfcloud in a single project ?[/quote]

Technically yes, but I am not sure that this will work due to how the library dependencies are written and designed.

Note also that there are restrictions on the amount of secure sockets, as per the limitations from the modem release notes:

- Up to three simultaneous TLS/DTLS connections are possible.

[quote user="venkatesh dyagala"]So do we have any applications that support AWS iot console and nrfcloud? If yes what are the changes we need to apply?[/quote]

The asset_tracker uses aws_fota, as shown in the project file (link), but it targets nrfcloud.com API to do this.

The fota libraries aren't designed to have several sources of fota, as the library fota_download isn't re-entrant, meaning that if you initialize it twice, you will overwrite the first configuration.

Is there a reason why you need two management platforms for FOTA?

Kind regards,

Håkon

RE: How to perform aws_fota using asset tracker application

venkatesh dyagala — Fri, 19 Jun 2020 06:08:42 GMT

Hi Hakon Alseth,

Thanks for the information, Just a small correction.

We performed firmware update using AWS by using the aws_fota application in samples/nrf9160/aws_fota. We also came to know that we can also update by nrf_cloud using device update bundles.

I have some questions regarding that

Is there a possibility to use AWS and nrfcloud in a single project ?
So do we have any applications that support AWS iot console and nrfcloud? If yes what are the changes we need to apply?

Thanks,

venkatesh

RE: How to perform aws_fota using asset tracker application

Håkon Alseth — Thu, 18 Jun 2020 14:02:51 GMT

Hi,

[quote user=""]Do we need to change any files in the asset tracker application to perform aws_fota. If yes what was the modifications we need to do in asset tracker application?[/quote]

No changes needed, its default enabled.

[quote user=""]Where do update the firmware versions, security tags etc in the asset tracker, do we need to change the parameters like this or we do not ?[/quote]

For updating certifications, please see this blog post:

https://devzone.nordicsemi.com/nordic/cellular-iot-guides/b/getting-started-cellular/posts/nrf-cloud-certificate-update

[quote user=""]How to know that the device is connected to the AWS cloud (As we see the device status in nrf connect but not in aws) ?[/quote]

Do you mean nrfcloud?

If so, it should be in the dashboard on nrfcloud.com.

[quote user=""]Is there any documentation to perform aws_fota on assert tracker application?[/quote]

Yes, you can create a "update bundle" by clicking on the hamburger menu in the top right corner when you're logged into nrfcloud.com. When you compile your application, asset_tracker in this case, you can then take the app_signed.hex in your build folder and create a update bundle.

Once you click on your device, which should be connected under "devices", there should be an "updates" card where you can select your newly created update bundle and send it to the nRF9160 device.

Kind regards,

Håkon