rotarybutton.yaml

esphome:
  name: rotarybutton
  friendly_name: rotarybutton

# other configuration snipped...
    
binary_sensor:
  - platform: gpio
    name: "Button 1"
    id: "button_1"
    pin:
      number: 0
      mode: INPUT_PULLUP

sensor:
  - platform: rotary_encoder
    id: my_rotary_encoder
    name: "Office Dimmer Knob"
    pin_a:
      number: 4
      mode: INPUT_PULLUP
    pin_b:
      number: 5
      mode: INPUT_PULLUP
    max_value: 100
    min_value: 0
    resolution: 2
    filters:
      debounce: 0.025s
  - platform: homeassistant
    name: Actual Light State
    id: actual_light_state
    entity_id: input_number.office_brightness
    on_value:
      then:
        - sensor.rotary_encoder.set_value:
            id: my_rotary_encoder
            value: !lambda 'return id(actual_light_state).state ;'