Template sensor unavailable

Configuration
1

Hi

I’ve been trying to use a template sensor based on two different temperature sensors.
The two sensor display the temperature OK.
The “Active room temperature” state is Unavailable.

I am not a programmer and I think I did not get this right. Also searched the forum but couldn’t find something similar. :thinking:

This is the yaml part in configuration.yaml:

sensor:
  - platform: template
    sensors:
      active_room_temperature:
        device_class: temperature
        friendly_name: "Active room temperature"
        unit_of_measurement: '°C'
        value_template: >-
          {% if time('23:00', '08:00') %}
            sensor.bedroom_temperature
          {% else %}
            sensor.living_temperature
          {% endif %}
2

time() is not a valid function. And if it was, sensor.living_temperature will just be a string. If you want the value of a sensor, you use states('sensor.my_sensor')

value_template: >-
  {% if now().hour >= 23 or now().hour <= 8 $}
    states('sensor.bedroom_temperature')
  {% else %}
    states('sensor.living_temperature')
  {% endif %}
3

Thanks. Tried it and now the state is a string states(‘sensor.bedroom_temperature’)
I miss something here and searching for an example is difficult as everybody seem to use another formatting that works :sweat_smile:

*replaced the $ with %
Also tried this but the state for entitiy sensor.active_room_temperature is still a string “states(‘sensor.bedroom_temperature’)”:

  - platform: template
    sensors:
      active_room_temperature:
        device_class: temperature
        friendly_name: "Active room temperature"
        unit_of_measurement: '°C'
        value_template: >
          {% if now().strftime('%T') > '23:00:00' or now().strftime('%T') < '8:00:00' %}
            states('sensor.bedroom_temperature')
          {% else %}
              states('sensor.living_temperature')
          {% endif %}
4 
value_template: >-
  {% set room = 'sensor.bedroom_temperature' if now().hour >= 23 or now().hour <= 8 else 'sensor.living_temperature' %}
  {{ states(room) }}

Alternately:

value_template: >-
  {% set room = 'bedroom' if now().hour >= 23 or now().hour <= 8 else 'living' %}
  {{ states('sensor.' ~ room ~ '_temperature') }}
5

Thanks. Works like a charm. :pray:

1 Like
6

Glad to hear it works. Please consider marking my post (above) with the Solution tag. It will automatically place a check-mark next to the topic’s title which signals to other users that this topic has an accepted solution. This helps other users find answers to similar questions.

7

just so OP understands why @123’s solution works, please see:

value_template: >-
  {% if now().hour >= 23 or now().hour <= 8 %}
    {{states('sensor.bedroom_temperature')}}
  {% else %}
    {{states('sensor.living_temperature')}}
  {% endif %}

for the verbose version of it. Jim only missed the enclosing double curly brackets {{}}