Thermostat controller change relay during heating

ESPHome
1

Hello guys,

I would like to ask for help with thermostat climate controller component. During the heating operation I would like to continously check a sensor (input pin) and change which switch should be turned on/off.

This is my sensor:

binary_sensor:
  - platform: gpio
    pin: 17
    id: is_night_power_available

And this is the thermostat component :

climate:
  - platform: thermostat
    name: "Szoba 1"
    sensor: room1_temp1
    id: room1_heater
    default_target_temperature_low: 20 °C
    min_heating_off_time: 30s
    min_heating_run_time: 30s
    min_idle_time: 3s
    heat_action:
      then:
        - if:
            condition:
              - binary_sensor.is_on: is_night_power_available
            then:
              - switch.turn_off: room1_relay_day
              - delay: 2s
              - switch.turn_on: room1_relay_night
            else:
              - switch.turn_off: room1_relay_night
              - delay: 2s
              - switch.turn_on: room1_relay_day
              
    idle_action:
      - switch.turn_off: room1_relay_night  
      - switch.turn_off: room1_relay_day

So based on the sensor value when the heating starts it activates relay_day or relay_night, which is working fine.
But it can happen that during heating the sensor changes its value…So how can I react to it? I must run again the heat_action section, but it only runs once it starts heating.

Thanks for help in advance!

2

Put the automation under the binary sensor. When the state changes it will evaluate the condition and take action.

binary_sensor:
  - platform: gpio
    pin: 17
    id: is_night_power_available
    on_state:
      then:
        - if:
            condition:
              - binary_sensor.is_on: is_night_power_available
            then:
              - switch.turn_off: room1_relay_day
              - delay: 2s
              - switch.turn_on: room1_relay_night
            else:
              - switch.turn_off: room1_relay_night
              - delay: 2s
              - switch.turn_on: room1_relay_day
3

Thank you very much!
I think it will solve the issue, my final code is : (I also need to check if thermostat is in the heating mode)

  - platform: gpio
    pin: 17
    id: is_night_power_available
    on_state:
      then:
        - if:
            condition:
              and:
                - lambda: 'return id(room1_heater).mode == "CLIMATE_MODE_HEAT";'
                - binary_sensor.is_on: is_night_power_available
            then:
              - switch.turn_off: room1_relay_day
              - delay: 2s
              - switch.turn_on: room1_relay_night
            else:
              - switch.turn_off: room1_relay_night
              - delay: 2s
              - switch.turn_on: room1_relay_day  
        - if:
            condition:
              and:
                - lambda: 'return id(room2_heater).mode == "CLIMATE_MODE_HEAT";'
                - binary_sensor.is_on: is_night_power_available
            then:
              - switch.turn_off: room2_relay_day
              - delay: 2s
              - switch.turn_on: room2_relay_night
            else:
              - switch.turn_off: room2_relay_night
              - delay: 2s
              - switch.turn_on: room2_relay_day

For both of the thermostats.

I will check it out after work.