Groups, Templates and Sensors

[123 (Taras)]

Good example for jameson_uk and also a good example for justifying this Feature Request:

Support Variables in Template Sensors

Release 0.115 introduced Variables for automations and scripts. Variables would also be useful for creating Template Sensors, Template Binary Sensors, Template Switches, etc. For example, here’s a Template Sensor I use to report the quantity of open doors. It also has an attribute reporting the names of all open doors. The two templates it uses are nearly identical. open_doors: friendly_name: 'Open Doors' value_template: > {{ expand('group.doors_all') | selec…

If it were implemented, you would be able to reduce the Template Sensor to this:

template:
  sensor:
    - name: "average_household_temp"
      state_class: measurement
      device_class: temperature
      unit_of_measurement: "°F"
      icon: mdi:home-thermometer-outline
      variables:
        items: "{{ expand('group.indoor_thermometers')| rejectattr('state', 'in', ['unavailable', 'unknown', 'NaN'])| map(attribute='state') | map('float', 0) | list }}"
      state: "{{ (items | sum / items | count) | round(0, 0) }}"
      availability: "{{ items | length == 0 }}"
      attributes:
        min: "{{ items | min }}"
        max: "{{ items | max }}"