[Bug ?] Use another entity's attribute to display attribute

[acress1]

Hi,

I'm creating a Bubble Card Button>Switch>Climate, for my Thermostat Valve (entity: climate.salon).
And instead of displaying the "climate.salon" current_temperature attribute, I would like to display the entity "climate.smart_thermostat_x" current_temperature attribute.
I tried to put in YAML :
attribute: hass.states['climate.smart_thermostat_x'].attribute.current_temperature (as explained in the README)

But nothing happens, and even the card is hiding if I validate.
Could you help please ?

Otherwise, the full YAML for my card (without the attribute option) is :
`type: custom:bubble-card
card_type: climate
sub_button:

• name: HVAC modes menu
  select_attribute: hvac_modes
  state_background: false
  show_arrow: false
  show_icon: true
  show_name: false
  show_last_changed: false
  state_color: true
  show_attribute: true
  show_state: false
  entity: climate.salon
  tap_action:
  action: perform-action
  perform_action: climate.toggle
  target:
  entity_id: climate.salon
  `
  Thanks a lot,
  Cress

[viatro]

There is a module for that: #1232.
Please note that modules were introduced in 2.5.0-beta versions, so you'll have to switch to the latest beta, if you haven't already.

[Clooos]

I also want to add that this is not correct:

attribute: hass.states['climate.smart_thermostat_x'].attribute.current_temperature

I'm definetely not explaining that in the Templates documentation 😅

Check it again, these templates must be added in the Custom styles and templates section in the editor.