KrzysztofHajdamowicz

This manual will show you how to acheive "remote" wmbus metering.

ESP stick

You will need to grab NodeMCU V2 development board and CC1101 radio transceiver.
Feel free to use something like this:
https://forum.arturhome.pl/t/komponent-do-esphome-umozliwiajacy-odczyt-miernikow-wm-bus-i-transmisje-wyniku-do-ha/7548

ESPHome configuration

Use config esp_wmbus.yaml.
In this configuration, ESP stick will stream all received telegrams to wmbusmeters running as your Home Assistant addon.

KrzysztofHajdamowicz

# binary sensor:
- platform: template
  sensors:
    people_at_home:
      value_template: >-
        {{ is_state('group.household', 'home')
           or is_state('group.family', 'home') }}
    should_i_ventilate_home:
      friendly_name: "Czy wietrzyć w domu?"
      value_template: >-