Unable to setup MQTT - Githubissues

Alexwijn / SAT

The Smart Autotune Thermostat (SAT) is a custom component for Home Assistant that works with an OpenTherm Gateway (OTGW).

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Unable to setup MQTT #31

Closed hhoef closed 1 month ago

hhoef commented 10 months ago

I have OTmonitor publishing to /events/central_heating/otmonitor.

When I try to setup SAT with MQTT gateway and I use otmonitor for the "top topic" I get "No matching devices fount" when selecting "Device".

HA core: 2024.1.2 HA superviser: 2023.12.0 OS: 11.3 Frontend: 20240104.0
SAT version: 3.0.1 installed through: HACS

Alexwijn commented 10 months ago

You have to setup the MQTT integration and it has to find the device, so you can select it.

hhoef commented 10 months ago

I did have MQTT setup in the integration.

Alexwijn commented 10 months ago

Alright, did it detected the OTGW device?

Alexwijn commented 10 months ago

I think I misread the first message. Do you use the Wi-Fi or the Ethernet version of OTGW?

hhoef commented 10 months ago

I use the otgw hardware from https://otgw.tclcode.com/. The gateway is connected via serial to a RPI that runs otmonitor (https://otgw.tclcode.com/otmonitor.html#configuration). Otmonitor is configured to use MQTT for publishing it's data. HA runs on a different computer and I installed mosquitto MQTT integration on it. In configuration.yaml I added: mqtt: sensor:

name: "cv_flame" state_topic: "events/central_heating/otmonitor/flame" value_template: "{{ value_json.value }}"
name: "cv_hotwater" state_topic: "events/central_heating/otmonitor/hotwater" value_template: "{{ value_json.value }}"
name: "cv_centralheating" state_topic: "events/central_heating/otmonitor/centralheating" value_template: "{{ value_json.value }}" etc.

So I can view Opentherm data on a dashboard.

Hope this will clarify my setup.

Alexwijn commented 10 months ago

Unfortunately that isn't supported. This component is designed to work together with the MQTT variant of: https://github.com/rvdbreemen/OTGW-firmware.

You can try serial connection route though, although not recommended.

hhoef commented 10 months ago

Maybe I can make a mqtt translation? What mqtt structure is SAT expecting?

Groetjes uit Delft

Alexwijn commented 10 months ago

There would be a lot of things you would need to expose, and it also needs the ability to send commands, otherwise it can't change the setpoint for example.

sergeantd83 commented 10 months ago

Or you can create a new connection type that will connect to OTGW through OTMonitor. You can have the mqtt connection as example.