ansible-home-assistant/configuration/automations/calendar.yaml

- id: calendar-coffee-machine-off
  alias: "[Calendar] Coffee machine"
  mode: single
  trigger:
    - platform: calendar
      event: start
      entity_id: calendar.automations_sleep
      offset: '-8:00:0'
  action:
    - wait_for_trigger:
        - platform: numeric_state
          entity_id: sensor.coffee_machine_electrical_measurement
          below: '4'
    - service: switch.turn_off
      target:
        entity_id: switch.coffee_machine_on_off

- id: calendar-coffee-machine-on
  alias: "[Calendar] Coffee machine"
  mode: single
  trigger:
    - platform: calendar
      event: end
      entity_id: calendar.automations_sleep
  condition:
    - condition: state
      entity_id: calendar.automations_sleep
      state: 'off'
  action:
    - service: switch.turn_on
      target:
        entity_id: switch.coffee_machine_on_off