Multiple MQTT topics on separate Channels, same device

Development Hardware
1

Currently I’m running a single Tlora v2.16 on the US/MI topic.

So my first problem is that my NodeDB gets filled up and the the reboots start until I clear the NodeDB. Cool, so I do that every couple of days.

Then I’m thinking maybe MI needs to segmented in multiple topics, but that raises the problem that you need a device for each topic. Compounded with the NodeDB limit, it seems like a non starter.

So my next thought is to see what the portduino can do. My question is, could the portduino support multiple topics on multiple channels without the NodeDB limitation?

In essence, could you have a single station multi MQTT, multi Channel gateway without the NodeDB limitation?

Thanks for thoughts and feedback in advance!

2

You don’t want this, the point of the topic is to go down to a level where there is less traffic, combining together two busy topics does not work.

3

I agree. The point would be more topics, less nodes in the topic.

Eg Topics/channels:

  • general chat /US/MI (many nodes)
  • bikes /US/MI/Bikes
  • good bars /US/MI/Bars
  • Computers /US/MI/Computers
  • Emergency /US/MI/Emergency

So some could setup & subscribe to the topics that they are interested without hopefully blowing out the NodeDB and without using a node for each topic.

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