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Re: [mosquitto-dev] MQTT using Tridium Niagara 4
  • From: Frank Pagliughi <fpagliughi@xxxxxxxxxxxxxx>
  • Date: Sat, 7 Mar 2020 08:53:19 -0500
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If I'm not mistaken, the broker at 'test.mosquitto.org' is completely unsecured. That means you can connect to it using a plain TCP connection without any user name or password. You can verify this with the mosquitto command line tools, like:
$ mosquitto_sub -v -h test.mosquitto.org -t '#'
...
You should see lots of traffic scrolling by.

Check the selections in your field, "Connection Type" for plain TCP.
Also check the field "Broker Ip  Address".  You may not want the "https://". Try just "test.mosquitto.org"
The "Broker Port", 1883 is correct for this type of connection.

Assuming that you can get connected this way and send messages, later you can play around with security, etc.

Also, I don't see where you specify topic names, but with a public server like this you should consider prefixing them with something unique, like:
"pmaxwellking/mytopic"

Then you can use the mosquitto tools to spy on all your traffic like:
$ mosquitto_sub -v -h test.mosquitto.org -t 'pmaxwellking/#'

That would then show all your messages... and only your messages.

Frank

On 3/7/20 4:40 AM, Paul Maxwell-King wrote:

Hi, I am trying to test MQTT using a controller with MQTT driver on a Tridium 4 controller.

I require a broker as well as a username / password, can I use test.mosquitto.org, and if so how do I find the username/password required for the driver to connect ?

Any help will be appreciated.

Below is a snapshot of the fields that’s required for this driver to run.

If I can’t use test.mosquitto.org As no username/password, does anyone know what service I can use to test this driver.

Once connected with the driver I have modules to send and receive values, snapshot below.

 

 


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