Setup nRF Cloud with own boards by using AT commands

[Bernd]

We have developed our own application board with the nRF9160 on it according to the reference design.

The modem is connected to an application controller by UART (no HW Ctrl pins) and I have the same UART to connect from outside.

I wanted to know if it is possible to connect it to the nRF Cloud for test reasons (just send some packages)

For the moment I use the "Serial LTE modem" Software (removed RTS/CTS) to send AT commands from application controller.

In general I can get a connection with the LTE/NB-ioT and get an IP address.

Questions:

- Is it possible to connect to the nRF Cloud just using AT commands?

- How can I use / update a certificate (only AT)?

- How do the packages look like that must be sent (by AT)?

Thanks for helping...

Regards,

Bernd

[Øyvind]

Hello Bernd, 

Have you looked at the nRF Cloud documentation? From the Serial LTE Modem you should be able to communicate with nRF Cloud using either MQTT or REST API.

Kind regards,
Øyvind

[Bernd]

Hi Øyvind

Thanks for link.

A firmware update to 1.3 allows me to use the KEYGEN command as a first step.

I have to go through the other steps now (its not obvious if you are no expert)

Regards,

Bernd

[Øyvind]

Hi Bernd, I can recommend reading through our documentation regarding the nRF Connect SDK, especially "Working with nRF91 series". 

[Kevin Kotinkar]

Hello Øyvind,

Before implementing the scenario in SW, the customer wants to manually connect to the nRF cloud using AT commands. Please share a setup / connection to nRF cloud using SLM & AT commands (MQTT).
I'll be able to test this tomorrow.

Assuming certificates are set correctly under sec tag 16842753, is below command enough?:

AT#XMQTTCON=1,"MyNordic_DK_nrF9160","","","a2n7tk1kp18wix-ats.iot.us-east-1.amazonaws.com",8883,16842753

Or do we also need to set appropriate kfconfig switches for AWS as described here:
https://developer.nordicsemi.com/nRF_Connect_SDK/doc/1.6.1/nrf/include/net/aws_iot.html#lib-aws-iot

• CONFIG_AWS_IOT_SEC_TAG

• CONFIG_AWS_IOT_BROKER_HOST_NAME

• CONFIG_AWS_IOT_CLIENT_ID_STATIC

Thanks,
Kevin

[Øyvind]

Hi Kevin, 

I'm afraid we do not have a setup/sample on how to connect nRF Cloud using Serial LTE Modem at the moment. The command you provided looks correct to me, although I'm not able to test similar here. 

The Asset Tracker and the nRF Cloud library should provide information to what is needed to connect. I'm afraid I do not have any more information at the moment. 

Kind regards,
Øyvind