Xiaomi Desk Lamp 1S ESPHome

esphome:
  name: mi_desk_lamp_1s
  platform: ESP32
  board: esp32doit-devkit-v1
  platformio_options:
    platform: espressif32@1.11.0
    platform_packages: |-4
          framework-arduinoespressif32 @ https://github.com/pauln/arduino-esp32.git#solo-no-mac-crc/1.0.4

wifi:
  ssid: !secret ssid
  password: !secret wpa2

captive_portal:

logger:

api:

ota:

sensor:
  - platform: rotary_encoder
    id: rotation
    pin_a: GPIO27
    pin_b: GPIO26
    resolution: 2
    on_value:
      then:
        - if:
            condition:
              # Check if Button is pressed while rotating
              lambda: 'return id(button).state;'
            then:
              # If Button is pressed, change CW/WW
              - lambda: |-
                  auto min_temp = id(light1).get_traits().get_min_mireds();
                  auto max_temp = id(light1).get_traits().get_max_mireds();
                  auto cur_temp = id(light1).current_values.get_color_temperature();
                  auto new_temp = max(min_temp, min(max_temp, cur_temp + (x*20)));
                  auto call = id(light1).turn_on();
                  call.set_color_temperature(new_temp);
                  call.perform();
            else:
              # If Button is not pressed, change brightness
              - light.dim_relative:
                  id: light1
                  relative_brightness: !lambda |-
                    return x / 10.0;
        # Reset Rotation to 0
        - sensor.rotary_encoder.set_value:
            id: rotation
            value: 0

binary_sensor:
  - platform: gpio
    id: button
    pin:
      number: GPIO33
      inverted: True
      mode: INPUT_PULLDOWN
    on_click:
      then:
      # use if-condition instead of toggle to set full brightness on turn_on
        - if:
            condition:
              light.is_on: light1
            then:
              - light.turn_off:
                  id: light1
            else:
              - light.turn_on:
                  id: light1
                  brightness: 100%
                  color_temperature: 2700 K

output:
  - platform: ledc
    pin: GPIO2
    id: output_cw
    min_power: 0.03
    power_supply: power
  - platform: ledc
    pin: GPIO4
    id: output_ww
    min_power: 0.03
    power_supply: power

power_supply:
  - id: power
    pin: GPIO12
    enable_time: 0s
    keep_on_time: 0s

light:
  - platform: cwww
    id: light1
    default_transition_length: 0s
    constant_brightness: true
    name: "Lights"
    cold_white: output_cw
    warm_white: output_ww
    cold_white_color_temperature: 5000 K
    warm_white_color_temperature: 2600 K