# \[APP\]\[Pro\] OpenTherm GateWay MQTT

**URL:** <https://community.homey.app/t/app-pro-opentherm-gateway-mqtt/77190>\
**Category:** Apps\
**Tags:** app, homey-pro\
**Created:** [March 5, 2023, 8:32pm UTC](https://community.homey.app/t/app-pro-opentherm-gateway-mqtt/77190 "2023-03-05T20:32:37Z")\
**Posts on this page:** 20\
**Page:** 5

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**Author:** ![Paul\_Hemels](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/paul_hemels/32/79588_2.png) [@Paul\_Hemels](https://community.homey.app/u/Paul_Hemels)\
**Post date:** [February 26, 2024, 5:16pm UTC](https://community.homey.app/t/app-pro-opentherm-gateway-mqtt/77190/81 "2024-02-26T17:16:34Z")

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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?

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**Author:** ![Gruijter](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/gruijter/32/1973_2.png) [@Gruijter](https://community.homey.app/u/Gruijter)\
**Post date:** [February 26, 2024, 5:25pm UTC](https://community.homey.app/t/app-pro-opentherm-gateway-mqtt/77190/82 "2024-02-26T17:25:13Z")

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No clue. This is the firmware I am using:

> **[Release #24: Yet Another Maintance Release · rvdbreemen/OTGW-firmware](https://github.com/rvdbreemen/OTGW-firmware/releases/tag/v0.10.2)**
>
> This is yet another maintenance release. No new features, just fixing stuff and adding the latest PIC firmware to the filesystem.
> The following fixes are included:
> 
> Update the filesystem to include...

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**Author:** ![evanhemmen](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/evanhemmen/32/79511_2.png) [@evanhemmen](https://community.homey.app/u/evanhemmen)\
**Post date:** [February 26, 2024, 5:32pm UTC](https://community.homey.app/t/app-pro-opentherm-gateway-mqtt/77190/83 "2024-02-26T17:32:17Z")

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No, I’m clueless.

I’m now considering buying a WiFi OTGW to solve the issue…

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<div class="post-metadata">

**Author:** ![Paul\_Hemels](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/paul_hemels/32/79588_2.png) [@Paul\_Hemels](https://community.homey.app/u/Paul_Hemels)\
**Post date:** [February 26, 2024, 5:56pm UTC](https://community.homey.app/t/app-pro-opentherm-gateway-mqtt/77190/84 "2024-02-26T17:56:27Z")

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Is it possible that the module needs to be a WiFi version?  
Do you have this module (Wi-Fi) [WeMos D1 Mini](https://www.nodo-shop.nl/nl/ons-assortiment/213-wemos-d1-mini.html)

That firmware is verry different version the what is here: [OTGW Downloads](https://otgw.tclcode.com/download.html#hexfiles)

I can only do the firmware update with a hex file.

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**Author:** ![Paul\_Hemels](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/paul_hemels/32/79588_2.png) [@Paul\_Hemels](https://community.homey.app/u/Paul_Hemels)\
**Post date:** [February 26, 2024, 6:06pm UTC](https://community.homey.app/t/app-pro-opentherm-gateway-mqtt/77190/85 "2024-02-26T18:06:14Z")

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I just bought the Wi-Fi version, thanks for the support so far.

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<div class="post-metadata">

**Author:** ![Gruijter](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/gruijter/32/1973_2.png) [@Gruijter](https://community.homey.app/u/Gruijter)\
**Post date:** [February 26, 2024, 7:15pm UTC](https://community.homey.app/t/app-pro-opentherm-gateway-mqtt/77190/86 "2024-02-26T19:15:46Z")

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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:

> **[Word lid van de Discord-server OTGW-firmware!](https://discord.com/invite/hhy5GWxyqH)**
>
> Community around the Nodoshop OpenTherm Gateway firmware. | 296 leden

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<div class="post-metadata">

**Author:** ![Paul\_Hemels](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/paul_hemels/32/79588_2.png) [@Paul\_Hemels](https://community.homey.app/u/Paul_Hemels)\
**Post date:** [February 28, 2024, 2:48pm UTC](https://community.homey.app/t/app-pro-opentherm-gateway-mqtt/77190/87 "2024-02-28T14:48:03Z")

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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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<div class="post-metadata">

**Author:** ![Gruijter](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/gruijter/32/1973_2.png) [@Gruijter](https://community.homey.app/u/Gruijter)\
**Post date:** [February 28, 2024, 3:04pm UTC](https://community.homey.app/t/app-pro-opentherm-gateway-mqtt/77190/88 "2024-02-28T15:04:15Z")

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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.

> [@Paul\_Hemels](#):
>
> should they work also you think?

No. This app only works for OTGW.

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<div class="post-metadata">

**Author:** ![Paul\_Hemels](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/paul_hemels/32/79588_2.png) [@Paul\_Hemels](https://community.homey.app/u/Paul_Hemels)\
**Post date:** [February 28, 2024, 5:12pm UTC](https://community.homey.app/t/app-pro-opentherm-gateway-mqtt/77190/89 "2024-02-28T17:12:28Z")

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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?

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<div class="post-metadata">

**Author:** ![Gruijter](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/gruijter/32/1973_2.png) [@Gruijter](https://community.homey.app/u/Gruijter)\
**Post date:** [February 28, 2024, 5:34pm UTC](https://community.homey.app/t/app-pro-opentherm-gateway-mqtt/77190/90 "2024-02-28T17:34:32Z")

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> [@Paul\_Hemels](#):
>
> but my thermostat can only steps of 0,5

Your boiler can probably work with 0.1 accuracy. So when setting from Homey you have more control then via your thermostat!

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<div class="post-metadata">

**Author:** ![Paul\_Hemels](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/paul_hemels/32/79588_2.png) [@Paul\_Hemels](https://community.homey.app/u/Paul_Hemels)\
**Post date:** [February 28, 2024, 5:49pm UTC](https://community.homey.app/t/app-pro-opentherm-gateway-mqtt/77190/91 "2024-02-28T17:49:54Z")

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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?

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<div class="post-metadata">

**Author:** ![Gruijter](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/gruijter/32/1973_2.png) [@Gruijter](https://community.homey.app/u/Gruijter)\
**Post date:** [February 28, 2024, 6:26pm UTC](https://community.homey.app/t/app-pro-opentherm-gateway-mqtt/77190/92 "2024-02-28T18:26:04Z")

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> [@Paul\_Hemels](#):
>
> there no way to make the steps 0,5

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 😉

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<div class="post-metadata">

**Author:** ![Paul\_Hemels](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/paul_hemels/32/79588_2.png) [@Paul\_Hemels](https://community.homey.app/u/Paul_Hemels)\
**Post date:** [February 28, 2024, 6:51pm UTC](https://community.homey.app/t/app-pro-opentherm-gateway-mqtt/77190/93 "2024-02-28T18:51:21Z")

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Ok no problem, I control it by flows.  
And yes like I mentioned it jumps to 20,5 👍

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<div class="post-metadata">

**Author:** ![Paul\_Hemels](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/paul_hemels/32/79588_2.png) [@Paul\_Hemels](https://community.homey.app/u/Paul_Hemels)\
**Post date:** [February 28, 2024, 7:15pm UTC](https://community.homey.app/t/app-pro-opentherm-gateway-mqtt/77190/94 "2024-02-28T19:15:00Z")

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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 ✌

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<div class="post-metadata">

**Author:** ![Gruijter](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/gruijter/32/1973_2.png) [@Gruijter](https://community.homey.app/u/Gruijter)\
**Post date:** [February 28, 2024, 7:35pm UTC](https://community.homey.app/t/app-pro-opentherm-gateway-mqtt/77190/95 "2024-02-28T19:35:38Z")

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Already possible now:

[https://homey.app/f/XqLdNT](https://homey.app/f/XqLdNT)

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<div class="post-metadata">

**Author:** ![Paul\_Hemels](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/paul_hemels/32/79588_2.png) [@Paul\_Hemels](https://community.homey.app/u/Paul_Hemels)\
**Post date:** [February 28, 2024, 7:36pm UTC](https://community.homey.app/t/app-pro-opentherm-gateway-mqtt/77190/96 "2024-02-28T19:36:50Z")

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Sorry I formulated it wrong, see the changed text what I mean.

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<div class="post-metadata">

**Author:** ![Gruijter](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/gruijter/32/1973_2.png) [@Gruijter](https://community.homey.app/u/Gruijter)\
**Post date:** [February 28, 2024, 7:38pm UTC](https://community.homey.app/t/app-pro-opentherm-gateway-mqtt/77190/97 "2024-02-28T19:38:13Z")

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Same thing… just change the logic card. What you need can be done already.

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<div class="post-metadata">

**Author:** ![Paul\_Hemels](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/paul_hemels/32/79588_2.png) [@Paul\_Hemels](https://community.homey.app/u/Paul_Hemels)\
**Post date:** [March 2, 2024, 8:08pm UTC](https://community.homey.app/t/app-pro-opentherm-gateway-mqtt/77190/98 "2024-03-02T20:08:01Z")

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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.

 ![](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/b/c/bc5878316cb8d50d901c2722146e00165f8e5186.jpeg)

 ![](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/c/2/c2eff088fc2052c63c8f5a9742debbeee43f0e16.jpeg)

The first time the App screen turned orange when heating, not anny more.  
Or was I dreaming 😓

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<div class="post-metadata">

**Author:** ![Paul\_Hemels](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/paul_hemels/32/79588_2.png) [@Paul\_Hemels](https://community.homey.app/u/Paul_Hemels)\
**Post date:** [March 5, 2024, 9:16am UTC](https://community.homey.app/t/app-pro-opentherm-gateway-mqtt/77190/99 "2024-03-05T09:16:32Z")

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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](http://my.homey.app) online, but not on my iPhone Homey App.

That was confusing me.

Regards Paul.

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<div class="post-metadata">

**Author:** ![Gruijter](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/gruijter/32/1973_2.png) [@Gruijter](https://community.homey.app/u/Gruijter)\
**Post date:** [March 5, 2024, 9:19am UTC](https://community.homey.app/t/app-pro-opentherm-gateway-mqtt/77190/100 "2024-03-05T09:19:29Z")

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> [@Paul\_Hemels](#):
>
> iPhone Homey App.

yes, Athom changes the mobile app now and then. Nothing I can do from the app perspective.

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