Home Assistant Sonoff TRVZB Dynamic External Temperature Automation

sonoff-trvzb.yaml

blueprint:
  name: "Dynamic Sonoff TRVZB External Temperature Updater"
  description: "Set Sonoff TRVZB External temperature sensor to average measured temperature in TRVs area"
  domain: automation
  input:
    run_interval:
      name: "Run Interval"
      description: |
        How often this automation will be executed (in minutes).
        Recommended - every 5 minutes (default)
      default: 5
      selector:
        number:
          min: 0
          max: 3600
          unit_of_measurement: minutes
          mode: box
    temp_sensor_label:
      name: Temperature Sensor Label
      description: |
        Label used to identify valid room temperature sensors.
        This is imporant, because otherwise random temperature sensors can be used - eg CPU temperature, TRV's own internal temperature, etc
      selector:
        label:

mode: single

triggers:
  - trigger: time_pattern
    minutes: !input run_interval

actions:
  - variables:
      temp_label: !input temp_sensor_label
      temp_hysteresis: 0.5
      labeled_sensors: "{{ label_entities(temp_label) }}"
      all_trvs: |
        {{ states.number 
           | selectattr('attributes.device_class', 'eq', 'temperature') 
           | selectattr('entity_id', 'search', '_external_temperature_input$') 
           | map(attribute='entity_id') 
           | list }}
  - repeat:
      for_each: "{{ areas() }}"
      sequence:
        - variables:
            current_area: "{{ repeat.item }}"
            trvs_in_area: "{{ area_entities(current_area) | select('in', all_trvs) | list }}"
          value_template: "{{ trvs_in_area | length > 0 }}"
        - variables:
            avg_temp: |
              {{ area_entities(current_area) 
                | select('in', labeled_sensors)
                | reject('is_hidden_entity')
                | select('is_state_attr', 'device_class', 'temperature')
                | map('states')
                | map('float', -999)
                | reject('eq', -999)
                | average(-999) }}
        - condition: template
          value_template: "{{ avg_temp > -999 }}"
        - action: number.set_value
          data:
            entity_id: "{{ trvs_in_area }}"
            value: "{{ avg_temp }}"
        - action: select.select_option
          data:
            entity_id: >-
              {{ trvs_in_area | map('device_id') | map('device_entities') |
              flatten | select('search', '_temperature_sensor_select$') | list
              }}
            option: external