# Blueprint for reporting indoor/outdoor temperature to OpenTherm Gateway from any home assistant sensor
# Updated: 26.01.2026

blueprint:
  name: Report temp to OpenTherm Gateway
  domain: automation
  author: "Laxilef"
  
  input:
    source_entity:
      name: Source entity
      description: "Temperature data source"
      selector:
        entity:
          multiple: false
          filter:
            - domain: sensor
    target_entity:
      name: Target entity
      description: "Usually ``number.opentherm_indoor_temp`` or ``number.opentherm_outdoor_temp``"
      default: "number.opentherm_indoor_temp"
      selector:
        entity:
          multiple: false
          filter:
            - domain: number

mode: single
variables:
  source_entity: !input source_entity
  target_entity: !input target_entity
trigger:
  - platform: time_pattern
    seconds: /30
condition:
  - condition: template
    value_template: "{{ states(source_entity) != 'unavailable' and states(target_entity) != 'unavailable' }}"
action:
  - if:
      - condition: or
        conditions:
          - condition: template
            value_template: "{{ (states(source_entity)|float(0) - states(target_entity)|float(0)) | abs | round(2) >= 0.01 }}"
          - condition: template
            value_template: "{{ (as_timestamp(now()) - as_timestamp(states[target_entity].last_updated)) | int(0) > 300 }}"
    then:
      - service: number.set_value
        data:
          value: "{{ states(source_entity)|float(0)|round(2) }}"
        target:
          entity_id: "{{ target_entity }}"