Template not triggering

Configuration
1

I am trying to trigger an automation when a value of a sensor reaches 1.0 below that of the input number.

platform: template
value_template: >-
  "{{ states('sensor.living_room_temperature_temperature') <
  states('input_number.lr_upper_temp') | float - 1.0 }}
id: LR-Too-Cold
alias: LR-Below-Min-Temp

It works when the second half (i.e. after the <) is a fixed input number but I am struggle to work out how to do subtract 1.0 from it.

Thanks in advance.

2

You need to float both parts of the sum, provide a default value to float, and lose the double quote:

value_template: >-
  {{ states('sensor.living_room_temperature_temperature')|float(0) <
     states('input_number.lr_upper_temp')|float(0) - 1.0 }}

That will trigger whenever either entity changes and the living room temperature is less than the upper temperature minus 1 degree.

3

Perfect, thank you. Yeah double quotes were me trying things, thanks though make perfect sense that the equation needs to be balanced… Thanks again.

4

You need the double quotes on both ends only if you’re putting the template on a single line:

value_template: "{{ states('sensor.living_room_temperature_temperature')|float(0) < states('input_number.lr_upper_temp')|float(0) - 1.0 }}"
5

I didn’t know that, thank you.