nRF9161 with MQTT Client in SLM

RE: nRF9161 with MQTT Client in SLM

Michal — Thu, 12 Sep 2024 11:23:45 GMT

Hello Paul,

I think we have found the issue.

Looks like the reason is that in failure commands curly double quote ” is used instead of straight double quote ".

AT#XMQTTCON=1,"mqttgateway”,”xxxxxxxxxxxxxxxx",”mqttbrokerstage.42gears.com",1890

Best regards,

Michal

RE: nRF9161 with MQTT Client in SLM

dingoxx — Wed, 11 Sep 2024 14:30:34 GMT

Hello

You can use the following commands on your nRF9161dk board with our MQTT Broker and see if you have the same problem on the second command

AT#XMQTTCFG="89882280666127879587",300,1

AT#XMQTTCON=1,"89882280666127879587”,”REtYPtiOnStI",”iris-mqtt.trackpac.io",1883

Thank You

Paul H

RE: nRF9161 with MQTT Client in SLM

Michal — Wed, 11 Sep 2024 13:44:45 GMT

Do you have any public brokers you could reproduce this issue against?

Or a test account for us to try?

RE: nRF9161 with MQTT Client in SLM

Michal — Wed, 11 Sep 2024 13:35:19 GMT

Hello Paul,

We'll look into it internally and I will get back to you before the end of the week.

Best regards,

Michal

RE: nRF9161 with MQTT Client in SLM

dingoxx — Tue, 03 Sep 2024 08:24:26 GMT

Hello Michal

I am using Nordic Quickstart for the nRF9161 and selecting nRF9161 and Serial LTE Modem.

The nRF9161dk is then programmed over the USB

> AT#XSLMVER

#XSLMVER: "2.7.0-rc3","2.7.0-cellular-28f48961a8dc"

OK
> AT+CGMR

mfw_nrf91x1_2.0.1

The nRF9161 connects OK and an IP address is returned

OK
> AT+CGDCONT?

+CGDCONT: 0,"IP","iot.1nce.net","10.XX.129.2",0,0

All Good - Now connect to a pulblic MQTT Server (with no username or password)

> AT#XMQTTCFG="MyMQTT-Client-ID",300,1

OK
> AT#XMQTTCON=1,"","","broker.emqx.io",1883

#XMQTTEVT: 0,0

All Good - Now disconnect

> AT#XMQTTCON=0

#XMQTTEVT: 1,0

All Good - Now try our MQTT Server which is OFFLINE

> AT#XMQTTCFG="Wiska_Air",300,1

OK
> AT#XMQTTCFG?

#XMQTTCFG: "Wiska_Air",300,1

All Good - Configuration is OK - Now try to connect to offline MQTT Broker

> AT#XMQTTCON=1,"mqttgateway”,”xxxxxxxxxxxxxxxx",”mqttbrokerstage.42gears.com",1890

nRF9161 issues no serial response - will accept no other AT serial command - Reset Button has to be pressed

Starting again with a MQTT broker that is ONLINE (tested 5 minutes ago with Quectel)

> AT#XMQTTCFG="89882280666127879587",300,1

OK
> AT#XMQTTCFG?

#XMQTTCFG: "89882280666127879587",300,1

All Good - Configuration is OK - Now try to connect to ONLINE MQTT Broker

> AT#XMQTTCON=1,"89882280666127879587”,”xxxxxxxxxxxxxx",”iris-mqtt.trackpac.io",1883
>

nRF9161 issues no serial response - will accept no other AT serial command - Reset Button has to be pressed

Thank You for your assistance

Paul H

RE: nRF9161 with MQTT Client in SLM

Michal — Wed, 28 Aug 2024 13:40:38 GMT

Hello Paul,

What is your NCS version? What about Modem FW?

Are you able to connect to the network and the internet? Did you try for example our HTTPS client or MQTT samples first?

Did you add a certificate to your device if required for your MQTT broker?

Best regards,

Michal