Dynamic target_sensor in thermostat

Configuration
1

Hi
Given the following sensors that detect the temperature:
sensor.living_room_temperature
sensor.chamber_temperature
sesnor.kitchen_temperature

and the following generic_thermostat

  - platform: generic_thermostat
    name: Riscaldamento termosifoni
    heater: switch.rele_caldaia
    target_sensor: input_select.my_selection
    min_temp: 15
    max_temp: 30

Is it possible to have a dynamic target_sensor, assigning it with an input_select where the sensors are those listed above?

2

No that is not possible.

3

Create an input select helper with your temperature entity ids and use its state as described in the former topic.


input_select:

  thermostat_target:
    name: Thermostat Target
    options:
      - sensor.one_temperature
      - sensor.two_temperature
      - sensor.three_temperature
4

You cant use that in the generic thermostat configuration. Unless I am mistaken.

5

I tested it and it is working. What are your concerns?

6

My concern was that the entity would be set when home assistant loaded the integration at start up and would then be unable to be changed during runtime.

7

Might be a caveat*, don’t know. But this is a bit different to ‘is not possible’.

P.S.: *in regard to the use in automations. But then I would use a start delay.

8

I solved this with a input select and a template sensor.
the input select is used to select what sensor the thermostat will use (Internal room, floor sensor or external HUE-sensor)

sensor: 
  - platform: template
    sensors:
      bedroom1_climate_control_sensor:
        value_template: >-
          {% if is_state('input_select.bedroom1_climate_control_sensor','Gulvføler') %}
            {{ states('sensor.bedroom1_thermostat_floor_tempeature')|float(18) }}
          {% elif is_state('input_select.bedroom1_climate_control_sensor','Romføler') %}
            {{ states('sensor.bedroom1_thermostat_room_tempeature')|float(15) }}
          {% elif is_state('input_select.bedroom1_climate_control_sensor','HUE-sensor') %}
            {{ states('sensor.pir_bedroom1_temperature_15m')|float(15) }}
          {% else %}'N/A'
          {% endif %}
climate:
  - platform: generic_thermostat
    name: "Soverom1"
    heater: input_boolean.bedroom1_heating
    target_sensor: sensor.bedroom1_climate_control_sensor
    target_temp_step: 0.5
    max_temp: 20
    min_temp: 15
    hot_tolerance: 0.5
    cold_tolerance: 0.5
    comfort_temp: 18
    activity_temp: 18
    home_temp: 18
    sleep_temp: 18
    away_temp: 18
2 Likes
9

I don’t know how to handle different float defaults, otherwise you can shorten it a bit:


template:
  - sensor:
      - name: Thermostat Target
        unique_id: thermostat_target_202211232124
        icon: mdi:fire
        state: |-
          {% set target = states('input_select.thermostat_target') %}
          {{ states(target)|float(22) }}

Or prettified:


input_select:
  thermostat_target_prettified:
    name: Thermostat Target
    options:
      - Loggia
      - Eingang
      - Küche


template:
  - sensor:
      - name: Thermostat Target prettified
        unique_id: thermostat_target_prettified_202211232124
        icon: mdi:fire
        state: |-
          {% set target = states('input_select.thermostat_target_prettified')
          |replace('Loggia', 'sensor.loggia_temperature')
          |replace('Eingang', 'sensor.eingang_temperature')
          |replace('Küche', 'sensor.kuche_temperature')
          %}
          {{ states(target)|float(22) }}
2 Likes
10

Thank you all, you have been very kind.
I adopted Pedolsky’s “prettified” solution but I’m sure Froschi’s solution would have been fine too
Thanks again