MQTT - Setup but not publishing

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myvicrocks asked Nov 23, '22

MQTT - Setup but not publishing

Hi there,

I have followed: MQTT local & via MQTT broker - Victron Community (victronenergy.com)

I setup the MQTT service both SSL and Plain text in my Cerbo. I use MQTT Explorer to view the MQTT broker. I can see : N/c0619ab1asd32/system/0 but the only sub topic is serial. There isnt any other topics like in the link above (Battery, AC etc etc).

I am wondering what I missed so it publishes the rest of the info?

MQTT

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taylortops commented · Dec 01, 2022 at 12:20 AM

If you're using Javascript, I can help you with some code. There are lot of Python and command line examples in this forum. If you're doing it in C, I can recommend a good psychologist.

But, on first glance:

Read keep alive as per Thomas' suggestion, once every 55 seconds . For your case, that would be: "R/c0619ab1asd32/keepalive ", nothing in the body.

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Answer 1 · 2022-11-30T17:32:11Z

Thomas answered · Nov 30, 2022 at 05:32 PM

Hi,

you have to send a message to the mqtt-broker on a regular base.

https://community.victronenergy.com/questions/153464/mqtt-cerbo-gx-sendet-nur-die-seriennummer.html

For test you can send it from the mqtt-explorer. It will stop sending data about one minute later.

I am using a linux-pc to collect the data from the mqtt-broker and the regular message is sent via a cronjob every minute.

Best regards

Thomas

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