get_operating_hours could not get serial data about whr_930 HOT 9 CLOSED

Thanks for reporting!

The error itself is harmless, I do a lot of validation to ensure that a message received is valid and complete and since serial communication can be flaky sometimes it happens that a message which is received is not compliant to the specification. I see those message's also on my own WHR930 a few times a hour.

I will submit a new version in a few minutes where those warning messages are not shown anymore. If you still want to see them, set the 'warning' parameter to True. For the Traceback I added an exception handler.

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Thanks, I will (probably somewhere this weekend) add it

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Thank you! All working now.
Another question, did you ever try to integrate the whr930 into google home using home assistant?

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Thank you! All working now.
Another question, did you ever try to integrate the whr930 into google home using home assistant?

Not with google home, but I did an integration with Amazon Alexa. I created a virtual device “ventilation” using the emulated-hue component, where off is level 2 (our default level) and 3 is on. So we can say, Alexa turn ventilation on/off

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Thats sounds awesome! Could you maybe share you script? Might help me to get it working with google home. Would highly appreciate it!

Edit: Was able to get something working. I'm able to control the WHR using Google Home/Homekit using this in the configuration.yaml. Only thing that doesn't work yet is the state topic, so it will change the speed value but not read what state is. Pretty basic so far. Looking into what needs to be done to get the state working.

Edit2:
Turns out getting the state is pretty simple.
Just needed to add this:

    state_value_template: "{{ states.sensor.wtw_ventilation_level.state }}"
    speed_value_template: "{{ states.sensor.wtw_ventilation_level.state }}"

So the full config becomes:
As you can see in my config below if set payload off to 1. If set to 0 the WHR will go into "Away" mode.

fan:
  - platform: mqtt
    name: "Ventilatie"
    state_topic: "house/2/attic/wtw/ventilation_level"
    command_topic: "house/2/attic/wtw/set_ventilation_level"
    speed_state_topic: "house/2/attic/wtw/ventilation_level"
    speed_command_topic: "house/2/attic/wtw/set_ventilation_level"
    state_value_template: "{{ states.sensor.wtw_ventilation_level.state }}"
    speed_value_template: "{{ states.sensor.wtw_ventilation_level.state }}"
    payload_off: "1"
    payload_on: "3"
    payload_low_speed: "1"
    payload_medium_speed: "2"
    payload_high_speed: "3"
    speeds:
      - "off"
      - low
      - medium
      - high

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Ah, you already have some. I use the switch variant, but I saw that indeed there is also a fan component now. This what I have configured

switch:
  - platform: mqtt
    name: "Ventilation"
    command_topic: "house/2/attic/wtw/set_ventilation_level"
    state_topic: "house/2/attic/wtw/ventilation_level"
    qos: 0
    payload_on: "3"
    payload_off: "2"
    state_on: "3"
    state_off: "2"
    optimistic: false

emulated_hue:
  advertise_ip: <ip address>
  expose_by_default: false
  exposed_domains:
    - switch
  entities:
    switch.ventilation:
      hidden: false

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@Mosibi thanks! I was able to get it working with the fan component. Turned out to be pretty straight forward. Exposed the fan component to Google Home and Homekit and able to control the WHR930 using both now 😄

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Would be nice if we can add this to the readme. Can you create a pull request or share the complete config sections here?

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@Mosibi this should do, let me know if you need anything else 😃

Google Home/Alexa configuration

Copy the following configuration to your configuration.yaml

fan:
  - platform: mqtt
    name: "Ventilation"
    state_topic: "house/2/attic/wtw/ventilation_level"
    command_topic: "house/2/attic/wtw/set_ventilation_level"
    speed_state_topic: "house/2/attic/wtw/ventilation_level"
    speed_command_topic: "house/2/attic/wtw/set_ventilation_level"
    state_value_template: "{{ states.sensor.wtw_ventilation_level.state }}"
    speed_value_template: "{{ states.sensor.wtw_ventilation_level.state }}"
    payload_off: "0"
    payload_on: "3"
    payload_low_speed: "1"
    payload_medium_speed: "2"
    payload_high_speed: "3"
    speeds:
      - "off"
      - low
      - medium
      - high

In the Home Assistant cloud configure either Google Home or Alexa and expose the newly added entity.

Homekit configuration

Copy the following configuration to your configuration.yaml

homekit:
  filter:
    include_entities:
      - fan.ventilation

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