How to control multiple Thermostats via MQTT - but with one thermostat card?

Configuration
5

I solved my loop problem with a delay of 1 second :slight_smile: this is my whole config if someone might be interested :slight_smile:

# AC Bedroom Sensors for Thermostat

# AC Bedroom

  - platform: template
    sensors:
      ac_bedroom_hvac_mode:
        entity_id: climate.air_conditioner_bedroom
        value_template: "{{ states.climate.air_conditioner_bedroom.state }}"
        friendly_name: AC Bedroom HVAC Mode

      ac_bedroom_temperature:
        entity_id: climate.air_conditioner_bedroom
        value_template: "{{ state_attr('climate.air_conditioner_bedroom', 'temperature') }}"
        friendly_name: AC Bedroom Temperature 
        
      ac_bedroom_fan_mode:
        entity_id: climate.air_conditioner_bedroom
        value_template: "{{ state_attr('climate.air_conditioner_bedroom', 'fan_mode') }}"
        friendly_name: AC Bedroom Temperature 

# Thermostat

      thermostat_bedroom_hvac_mode:
        entity_id: climate.bedroom_ac_control
        value_template: "{{ states.climate.bedroom_ac_control.state }}"
        friendly_name: Thermostat Bedroom HVAC Mode
      thermostat_bedroom_temperature:
        entity_id: climate.bedroom_ac_control
        value_template: "{{ state_attr('climate.bedroom_ac_control', 'temperature') }}"
        friendly_name: Thermostat Bedroom Temperature 
      thermostat_bedroom_fan_mode:
        entity_id: climate.bedroom_ac_control
        value_template: "{{ state_attr('climate.bedroom_ac_control', 'fan_mode') }}"
        friendly_name: Thermostat Bedroom Temperature 

###################################### END ###########################################################

And the automations:

# # Bedroom Thermostat


## HVAC Mode

  - alias: Thermostat - Set Slave HVAC Mode
    trigger:
      - platform: state
        entity_id: sensor.thermostat_bedroom_hvac_mode
    action:
      - delay: 
          seconds: 1
      - service: climate.set_hvac_mode
        data_template:
          entity_id: climate.air_conditioner_bedroom
          hvac_mode: "{{ trigger.to_state.state }}"

  - alias: Thermostat - Set Master HVAC Mode
    trigger:
      - platform: state
        entity_id: sensor.ac_bedroom_hvac_mode
    action:
      - delay: 
          seconds: 1
      - service: climate.set_hvac_mode
        data_template:
          entity_id: climate.bedroom_ac_control
          hvac_mode: "{{ trigger.to_state.state }}"


## Temperature

  - alias: Thermostat - Set Slave Temperatue
    trigger: 
      - platform: state 
        entity_id: sensor.thermostat_bedroom_temperature
    action:
      - delay:
          seconds: 1
      - service: climate.set_temperature
        data_template:
          entity_id: climate.air_conditioner_bedroom
          temperature: "{{ trigger.to_state.state }}"

  - alias: Thermostat - Set Slave Temperatue
    trigger: 
      - platform: state 
        entity_id: sensor.ac_bedroom_temperature
    action:
      - delay:
          seconds: 1
      - service: climate.set_temperature
        data_template:
          entity_id: climate.bedroom_ac_control
          temperature: "{{ trigger.to_state.state }}"

## Fan Mode

  - alias: Thermostat - Set Slave Fan Mode
    trigger: 
      - platform: state 
        entity_id: sensor.thermostat_bedroom_fan_mode
    action:
      - delay:
          seconds: 1
      - service: climate.set_fan_mode
        data_template:
          entity_id: climate.air_conditioner_bedroom
          fan_mode: "{{ trigger.to_state.state }}"

  - alias: Thermostat - Set Slave Fan Mode
    trigger: 
      - platform: state 
        entity_id: sensor.ac_bedroom_fan_mode
    action:
      - delay:
          seconds: 1
      - service: climate.set_fan_mode
        data_template:
          entity_id: climate.bedroom_ac_control
          fan_mode: "{{ trigger.to_state.state }}"