More granular temperature setting for heating action

[MattieGit]

Checklist

• [X] I checked for similar existing requests (both open and closed) before posting.
• [X] My request is generic, other users may benefit from it too.
• [X] I will participate in further discussion about this feature and can test it (if requested) once it's done.

Proposal

As far as I know it is only possible to set the temperature for heating and cooling actions as a whole number. It would be nice to set a specific temperature with a precision of one decimal.

Additional info

Example of current setting:

Proposed change: be able to change 20 to 19.5 in this example

[nielsfaber]

Scheduler uses the target_temp_step attribute of your climate entity to determine the step size. Can you check the value of this property (via Developer Tools -> States) and compare?

[MattieGit]

Thanks a lot! The target_temp_step attribute was set to 1. I have set it to 0.5 manually and now I'm able to set the temperature to half degrees Celcius in the scheduler interface. I have used a permanent override in my configuration.yaml using the "customization" option.

climate.device_name:
  target_temp_step: 0.5