esphome.yaml

esphome:
  name: esp8266
  friendly_name: esp8266
  includes: 
    - include/irdaikin.h
  libraries:
    # - IRremoteESP8266
    - crankyoldgit/IRremoteESP8266@^2.8.6

esp8266:
  board: esp01_1m

# Enable logging
logger:

# Enable Home Assistant API
api:
  encryption:
    key: "<REDACTED>"
    
ota:
  password: "<REDACTED>"

wifi:
  ssid: !secret wifi_ssid
  password: !secret wifi_password

time:
  - platform: homeassistant
    timezone: Europe/London
    id: esptime
    
switch:
    # change this sensor to one that can actually sense the AC status
    # For example, a reed switch at the exhaust cover, or a current sensor with a analogue threshold
    # if you dont have one, keep this template sensor
  - platform: template
    name: "AC status"
    id: ac_status
    restore_mode: RESTORE_DEFAULT_OFF 
    optimistic: True
    
sensor:
    # Actual temperature
  - platform: homeassistant
    id: living_room_temperature
    entity_id: sensor.living_room_temperature
    internal: true
    
climate:
  # just remove the daikinac->set_senso line if you dont have another temperature sensor
  - platform: custom
    lambda: |-
      auto daikinac = new DaikinAC();
      daikinac->set_sensor(id(living_room_temperature));
      App.register_component(daikinac);
      return {daikinac};
    climates:
      - name: "AC"
        on_state: 
          - lambda: |-
              # Delete this lambda and the whole on_state trigger
              # IF you dont have the template sensor
              id(ac_status).publish_state(x.mode != CLIMATE_MODE_OFF);