Feature request - modulation

[Dominixis]

Hi,

first of all – thank you for this great project, I’m now running OTGateway fully integrated with Home Assistant via MQTT.

I’d like to request a small feature that would really help in real-world usage:

Feature request: Ability to set Max Modulation Level from Home Assistant (via MQTT)

In the ESP web interface under Advanced there is the option Max modulation level which is very useful to reduce burner cycling. However, when using MQTT integration with Home Assistant, this parameter is not exposed. I can only read the current modulation level, but I cannot set the max modulation limit remotely over MQTT.

It would be very useful to have a way to send MQTT command to set this limit, so that Home Assistant could automatically tune this value based on heating conditions or outdoor temperature.

Example use case:

during shoulder season I would like to limit modulation to e.g. 20–30% to avoid short cycles

in cold winter days I would allow more modulation

Could you please expose this setting via MQTT?

Thank you!

[Laxilef]

Hi,

Not very elegant, but working solution for HA:

action: mqtt.publish
data:
  topic: opentherm/settings/set
  payload: |-
    {
      "heating": {
        "maxModulation": 30
      }
    }

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