- platform: mqtt
    name: Thermostat
    modes:
      - low
      - manual
      - auto

    mode_state_topic: "home/boiler/thermostat_data"
    current_temperature_topic: "home/boiler/thermostat_data"
    temperature_state_topic: "home/boiler/thermostat_data"

    temperature_command_topic: "home/boiler/thermostat_cmd_temp"
    mode_command_topic: "home/boiler/thermostat_cmd_mode"

    mode_state_template: "{{ value_json.thermostat_mode }}"
    current_temperature_template: "{{ value_json.thermostat_currtemp }}"
    temperature_state_template: "{{ value_json.thermostat_seltemp }}"

    temp_step: 0.5