Subscription to AirVantage MQTT topic

Hi Dragan,

I hope to be able to send some MQTT data to AirVantage this weekend. Will update you once I figure it out

Frederick

Hi Dragan

Which pattern do you use to subscribe? Try with '#' only just to be sure that you are subscribed to everything and see what happens

Ambrogio

OK, thanks.

For me, sending data is not a problem, the problem is notifying remote clients when new data is published.

I will post a solution as soon as I resolve it.

Dragan

Thanks Ambrogio!

I was trying to subscribe to <SERIAL>/tasks/json and that does not work (subscription is successful but callbacks are never being called). Apparently, that topic is used to issue commands to clients.

I also tried to subscribe to <SERIAL>/messages/json (the same topic that I publish data to) but that subscription fails.

Do you think I should try subscribing to "<SERIAL>/tasks/json/#" of just "#"?

Dragan

I would subscribe to just '#', publish a message and see the topic received in the notification

Ambrogio

I tried with just "#" but still got no result.

Also tried with <SERIAL>/# but again, no message was received.

I must have done something wrong during the AirVantage setup...

Dragan

AirVantage MQTT is not acting as MQTT broker.

The first topic messages/json  to send data  (<SERIAL>/messages/json)

the data are sent in the payload in json like this: { "machine.temperature": 23.2, "machine.humidity": 70 }

If you want to receive data from AirVantage, you can subscribe to the second topic <SERIAL>/tasks/json.

Didier

Thanks! I'm pretty sure I tried that but I'll check again and let you know the result.

Dragan

Here's what I tried (serial is blurred but it's always the same):

Values are being properly published, I see it when I use the AirVantage monitor.

Am I doing something wrong here?

Thanks,

Dragan

what are you trying to achieve?