Did you fix your isue? I have the same.
I updated the firmware to the latest version 6.5 (I have PIC 1847)
And get also 25 devices 
I have also a ‘standard’ nodo OTGW with a TCP module
@Gruijter anny idea what is going wrong?
No clue. This is the firmware I am using:
No, I’m clueless.
I’m now considering buying a WiFi OTGW to solve the issue…
Is it possible that the module needs to be a WiFi version?
Do you have this module (Wi-Fi) WeMos D1 Mini
That firmware is verry different version the what is here: OTGW Downloads
I can only do the firmware update with a hex file.
I just bought the Wi-Fi version, thanks for the support so far.
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Mmh, I never knew the firmware of the ethernet version is completely different from the wifi version. I always assumed the MQTT interface was the same. I guess not then 
.
By the way, I created a new invite for discord that should never expire:
It works 
It’s strange that it not works with the LAN version.
But it is what it is.
P.S. I have 2x Mitsubishi Airco’s also with ESP8266 IOT modules, should they work also you think?
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Great to hear it works now! I added to the readme in the first post that you need the wifi version.
No. This app only works for OTGW.
One question, the temp set wheel in the app is in steps of 0,1 grd, but my thermostat can only steps of 0,5.
Can I adjust / change that somewhere?
Your boiler can probably work with 0.1 accuracy. So when setting from Homey you have more control then via your thermostat!
No thats not the case, when I put him on 20.4 it goed to 20,5 etc.
Is there no way to make the steps 0,5 grd?
No. But if you set it to e.g. 20.4, does it not jump automatically to 20.5 after some time (could take some minutes)?
Edit: looking at it a bit more I see what you mean. Any setting not rounded at .5 will be ignored by the boiler. I will see if I can make a setting for this in the app.
But dont hold your breath for it. I have a lot going on so need to have a spare hour to implement this, and also have a lot of other apps that need work by me 
Ok no problem, I control it by flows.
And yes like I mentioned it jumps to 20,5 
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Is it possible to ad this and functions, to a flow?
And: room temperatuur is less then “x” grd
And: room temperatuur is greater then “x” grd
This could be used in a flow to start it only if it’s cold or warm in the room 
This should save a extra sensor 
Already possible now:
Sorry I formulated it wrong, see the changed text what I mean.
Same thing… just change the logic card. What you need can be done already.
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Anny idea why I don’t see the burner starts?
And a few other things, I saw them in the other OTGW, so my heating system transmits them!
And return temp.
The first time the App screen turned orange when heating, not anny more.
Or was I dreaming 
Hi Robin,
Regarding this:
The first time the App screen turned orange when heating, not anny more.
Or was I dreaming
Update:
The screen color changes on/in the my.homey.app online, but not on my iPhone Homey App.
That was confusing me.
Regards Paul.
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yes, Athom changes the mobile app now and then. Nothing I can do from the app perspective.
