There is one minor difference - when using the serial gateway all my repeaters were interconnected with lines, now they are all islands. Before I believe that only non-repeater showed as unconnected. I kind of liked that distinction - Why is this so ?

There is no difference in MyController side for MQTT or Serial. On gateway, page select the gateway and execute Discover.

Discover job will be executed 30 minutes once I guess(default).

Your MQTT gateway RF may be weaker than serial gateway RF. When enabling ack for your gateway might resolve this issue. If the message failed to send, MyController retries N(in this image 5 times) times in the interval of 1 second(1000 ms).

Thanks again, every day I feel a little more in control.

To have only one gateway I have eliminated the serial-gateway. I am now using the Raspberry Pi as a MQTT gateway, and MyController is setup to use the RPI as MySensor-MQTT gateway. All Sensors get discovered and everything looks fine.

So I am happy - this is exactly what I was looking for

There is one minor difference - when using the serial gateway all my repeaters were interconnected with lines, now they are all islands. Before I believe that only non-repeater showed as unconnected. I kind of liked that distinction - Why is this so ?

Thanks for great project and great support

/StorePeter

I just found this
https://github.com/mycontroller-org/mycontroller/issues/7
I certainly would like to see this implemented, or perhaps just a way to export a given sensor to MQTT. If this is already possible I would like to know how, otherwise a button on each sensor (and node to export, all its sensors) where you could specify a MQTT name, would be really helpfull. think of it as a symbolic link

This feature has been implemented on serial2mqtt

Thank you for your reply, it helped me get a little further, although there are still many blanks
When I first started playing with MySensors I made a MySensors-MQTT gateway on a Raspberry Pi as described here:
https://www.mysensors.org/build/raspberry
but somehow it could not see my sensors, so I was stuck for a few days.
Then I saw a comment somewhere on the MySensor forum that you need to have a controller, and then I noticed this comment "NOTE: No controller supports dynamic ID assignment through MQTT. All nodes must have MY_NODE_ID" on
https://www.mysensors.org/build/mqtt_gateway

MyController supports everything via MQTT. There is no restriction. However, you can see bit latency in the firmware update(OTA) via MQTT.

which led to MyController. So I build a MySensor serial-gateway and was up and running in no time with MyController, I was (and still am) very impressed with what could be achieved this way with very limited effort. Hence I rethought my configuration, now wanting to have MyController be the back-bone also since it seemed to have build in MQTT-broker.
Now I just read:
https://forum.mycontroller.org/topic/15/republish-mysensors-messages-via-mqtt
This is what I thought the MQTT functionallity in MyController was - I guess I was wrong, is it only intended to be a gateway from MQTT to MyController. I believe the other way could be really valuable with f.ex. node-red. Do I understand this right or is there something I have missed ?

Initially we do not have support for serial to MQTT. I am afraid to introduce this feature in MyController. Hence I created a separate project. It is serial2mqtt. If you want to convert serial to MQTT. use this project.

Anyway - for now it seems that I had already solved my problem, the Raspberry pi had been supplying a MQTT stream as soon as MyController had numbered my sensors.
Is this a desireable setup, I read some where that you can only have one Gateway on a MySensors network, and now I have two ?

Yes, you should have only one. Gateway id is Unique(0) If you have more than one gateway, you may end up with some issues.
But you can have more than one network. It means you can configure different frequency for each network. Somthing like displayed here.

As you can see it is still MyController/MySensors playing with me, but soon I hope I will have some of my blanks filled in so it will be me playing with them.
If you can read Danish or use google translate, I have written about this on my blog and intend to document my progress there aswell
http://peter.lorenzen.us/homeautomation/mysensors

+1

I certainly would like to see this implemented, or perhaps just a way to export a given sensor to MQTT. If this is already possible I would like to know how, otherwise a button on each sensor (and node to export, all its sensors) where you could specify a MQTT name, would be really helpfull. think of it as a symbolic link

When I first started playing with MySensors I made a MySensors-MQTT gateway on a Raspberry Pi as described here:
https://www.mysensors.org/build/raspberry

but somehow it could not see my sensors, so I was stuck for a few days.
Then I saw a comment somewhere on the MySensor forum that you need to have a controller, and then I noticed this comment "NOTE: No controller supports dynamic ID assignment through MQTT. All nodes must have MY_NODE_ID" on
https://www.mysensors.org/build/mqtt_gateway

which led to MyController. So I build a MySensor serial-gateway and was up and running in no time with MyController, I was (and still am) very impressed with what could be achieved this way with very limited effort. Hence I rethought my configuration, now wanting to have MyController be the back-bone also since it seemed to have build in MQTT-broker.

Now I just read:
https://forum.mycontroller.org/topic/15/republish-mysensors-messages-via-mqtt

This is what I thought the MQTT functionallity in MyController was - I guess I was wrong, is it only intended to be a gateway from MQTT to MyController. I believe the other way could be really valuable with f.ex. node-red. Do I understand this right or is there something I have missed ?

Anyway - for now it seems that I had already solved my problem, the Raspberry pi had been supplying a MQTT stream as soon as MyController had numbered my sensors.

Is this a desireable setup, I read some where that you can only have one Gateway on a MySensors network, and now I have two ?

As you can see it is still MyController/MySensors playing with me, but soon I hope I will have some of my blanks filled in so it will be me playing with them.

If you can read Danish or use google translate, I have written about this on my blog and intend to document my progress there aswell

http://peter.lorenzen.us/homeautomation/mysensors