calib_trv_external_temp.yaml

blueprint:
  name: Calibrate TRV external temperature
  description: Calibrate Moest BRT-100 TRV internal temperature according to external temperature sensor
  domain: automation
  input:
    external_temp:
      name: Select the external temp sensor
      description: This will be your external temp sensor.
      selector:
        entity:
          domain:
          - sensor
          device_class:
          - temperature
          multiple: false
    climate_names:
      name: Climate entries
      description: This will be the MOES TRVs that will be calibrated using the external sensor.
      selector:
        entity:
          domain:
          - climate
          multiple: true
    offset_factor:
      name: Calibration Offset Factor
      description: |
        Adds weighted diff in actual and target temperature.
        will add following formula to calibration: offset_factor * (actual_temp - target_temp)
        0 = no offset
      selector:
        number:
          min: 0
          max: 2
          step: 0.1
  source_url: https://github.com/LukasVyhlidka/HAMoesTrvAutomations/blob/main/blueprints/calib_trv_external_temp.yaml
alias: Calibrate Moes TRVs
description: ''
variables:
  climate_names: !input climate_names
  external_temperature: !input external_temp
  offset_factor: !input offset_factor
trigger:
- platform: state
  entity_id: !input external_temp
  for:
    hours: 0
    minutes: 0
    seconds: 15
    milliseconds: 0
- platform: state
  entity_id: !input climate_names
  for:
    hours: 0
    minutes: 0
    seconds: 15
    milliseconds: 0
condition:
  condition: and
  conditions:
  - condition: template
    value_template: '{{ states(external_temperature) != ''unavailable'' }}'
  - condition: template
    value_template: '{{ states(external_temperature) != ''unknown'' }}'
action:
- repeat:
    for_each: "{{ climate_names }}"
    sequence:
    - variables:
        climate_name: "{{ repeat.item }}"
        device_calib: "number.{{ climate_name.removeprefix('climate.') }}_local_temperature_calibration"
        external_temp: "{{ states(external_temperature) | float() }}"
        local_temp: "{{ state_attr(climate_name, 'current_temperature') | float() }}"
        target_temp: "{{ state_attr(climate_name, 'temperature') | float() }}"
        actual_calib: "{{ states(device_calib) | float() }}"
        temp_diff: "{{ external_temp - target_temp }}"
        calibration_offset: "{{ temp_diff * offset_factor }}"
        target_calib: "{{ external_temp - (local_temp - actual_calib) + calibration_offset }}"
        target_calib_round: "{{ target_calib | round() }}"
        target_calib_trunc: "{{ [ ([target_calib_round, 9] | min), -9 ] | max }}"

    - alias: "check if calibration needs change"
      condition: template
      value_template: "{{ (actual_calib | round()) != target_calib_trunc }}"
      
    - service: number.set_value
      target:
        entity_id: "{{ device_calib }}"
      data:
        value: "{{ target_calib_trunc }}"

- delay: 5
mode: single
max_exceeded: silent