Format temperature reading on Lovelace card

Configuration Frontend
1

The cleaning lady knocked over my RPi and in the process the microSD card broke and with that I lost my entire HA config.

I have a few temperature sensors that include degree symbol “f” with the temp reading and there was a way I had set up to get the reported format on the Lovelace card for those to match other sensors that just report the numeric value, but I can’t recall what I did. Any idea how I would make the temp reading in the card on the right look like the one on the left?

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2

make a template sensor

3

I had this code but not sure it ever worked:

template:

  • sensor:
    • name: “Kitchen temperature”
      unit_of_measurement: “°F”
      state: >
      {% set kitchen = states(‘sensor.kitchen_temp_sensor’) | float %}

When I put this entity on a Lovelace card, it only gives me the attributes Friendly Name and Unit of Measurement and the card just shows degree symbol F.

4

You’d have to have that in configuration.yaml, and it would create a second sensor. Also, you’d have to parse out the units if your source sensor has the units. Post a screenshot of your current sensor in developer tools → states page.

5

I did put it in configuration.yaml, This is the actual temp sensor:

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and this is the one created in configuration.yaml:

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6 
template:
- sensor:
  - name: Kitchen Temperature
    unique_id: kitchen_temperature
    device_class: temperature
    state_class: measurement
    unit_of_measurement: °F
    state: >
      {{ (state_attr('sensor.kitchen_temp_sensor', 'temperature') or '0') | regex_findall('([0-9.]+)') | map('float', 0) | first | default(0) }}
1 Like
7

Thanks and of course it works! Juts curious, is the findall needed to parse out the number from the symbol and f string?

8

Yep, that’s all it’s doing