What an interesting thread this became. Over some time/years ago I tried to start with MySensors. Unfortunately I failed miserably because I tried it to combine with starting with Openhab, and connect mysensors by mqtt.

The Openhab route combined with Mysensors is still the route I want to go: combine the open architecture of Openhab to connect different vendor approaches added with the flexible way of MySensors.

To be complete: My background is a bachelor in Physics. So the basic programming and electronics may not be the real problem, although I am certainly not claiming to know everything.

To end up this post: in the next couple of weeks/months I have spare time to invest in the project. When I combine this with the things the topic starter ave addressed I have the following to offer to the Mysensors community:

“I am offering to write and give feedback of the guides and information found in the forum, to document at what point I am stuck with the given information. I hope the community can and will do something with this feedback. So long as I am not going to be completely stuck, I can and will be writing the feedback.”

Off coarse I need to know if the community is waiting for such an approach before I start to write.

My thoughts of devices to use in the network:

• mqtt gateway: wired based on cloned arduine with hat ethernet
• mqtt gateway based on wifi based esp8266 nodemcu board
• radio network: base the nrf24 version
• radio network: based on rfm69 for secure transmission (opening doors with nrf24 does not feel safe)
• repeaters as needed or extra gateways (3 story concrete house)
• sensors and actuators: starting with wallpowered, later adding battery powered

So, how does this approach sound to you all?

Last night I downloaded a mqtt client on my phone. And guess what: first attempt was working directly.
So after I knew at least the node is working, and the topic that I figured out was correct, I returned to mqtt.fx this morning.

That was a really facepalm moment. Quite embarrising I must confess......
In mqtt.fx in the publish tab, there is a really great white box right beneath the topic field. And exactly in that great white field I can enter the boolean payload I need.

So my help question is answered in the mean time. For now I can continue to explore the mysensors possibilities, and try to let it work together with Openhab. After that, I will look to mycontroller.org to get it glued together by the mqtt layer. Although I’ve read somewere that a pure translation/retransmission between mycontroller to a mqtt broker not seems possible.