target_temperature_adjustment_with_additional_thermostat.yaml

blueprint:
  name: >
    Target temperature adjustment depending on second temperature sensor and
    thermostat
  description: >
    Sets target temperature depending on second temperature sensor. in addition
    to this https://gist.github.com/nevesenin/86c471e8ea5ab10a2b9ddcbca6dbbccb
    blueprint it reads target temperature from a thermostat.
  domain: automation
  input:
    climate_source:
      name: Source Thermostat
      description: Climate entity which will send the temperature update
      selector:
        entity:
          domain: climate
    climate_target:
      name: Target Radiators
      description: Climate target which will get the temperature update
      selector:
        entity:
          domain: climate
    temperature_sensor:
      name: Temperature Sensor
      description: This sensor will be used as the source.
      selector:
        entity:
          domain: sensor
          device_class: temperature

variables:
  climate_target: !input climate_target
  climate_source: !input climate_source
  temperature_sensor: !input temperature_sensor
  target_temperature: "{{ state_attr(climate_source, 'temperature') }}"
  actual_temperature: "{{ states(temperature_sensor) | float }}"
  calculated_adjustment: "{{ target_temperature - actual_temperature }}"
  calculated_target_temperature: "{{ ( ( ( target_temperature + calculated_adjustment ) * 2 ) | round ) / 2 }}"
  
trigger:
  - platform: state
    entity_id: !input temperature_sensor
  - platform: state
    entity_id: !input climate_source
  - platform: homeassistant
    event: start
condition: "{{ calculated_adjustment != 0 }}"
action:
  - service: system_log.write
    data:
      message: >
        {{ temperature_sensor }} has temp difference of {{ calculated_adjustment }}.
        Setting target temperature to {{ calculated_target_temperature }}
      level: info
      logger: blueprints.nevesenin.target_temperature_adjustment_with_additional_thermostat
  - service: system_log.write
    data:
      message: >
        temperature_sensor: {{ temperature_sensor }},
        target_temperature: {{ target_temperature }},
        actual_temperature: {{ actual_temperature }},
        calculated_adjustment: {{ calculated_adjustment }},
        calculated_target_temperature: {{ calculated_target_temperature }}
      level: debug
      logger: blueprints.nevesenin.target_temperature_adjustment_with_additional_thermostat
  - service: climate.set_temperature
    data:
      temperature: "{{ calculated_target_temperature }}"
      entity_id: !input climate_target
mode: single