mcu-desk-lamp.yaml

substitutions:
  device: desk-lamp
  name: Mi Desk Lamp
  comment: ""

esphome:
  name: mcu-${device}
  comment: ${comment}

esp32:
  board: m5stack-atom
  framework:
    type: esp-idf
    version: 5.1.2
    platform_version: 6.6.0
  
packages:
  common: !include common/common.yaml

# Mi Desk Lamp
# Pin 	  Function (Name)
# GPIO18: Warm White (GPIO_PWM2)
# GPIO19: Cold White (GPIO_PWM1)
# GPIO21: Rotary switch A pin (GPIO_ROT_A)
# GPIO26: Rotary switch B pin (GPIO_ROT_B)
# GPIO36: Button (GPIO_KEY1)


binary_sensor:
  - platform: gpio
    pin:
      number: 36
      inverted: yes
    id: rotary_button
    # filters:
    #   invert:
    on_click:
      - light.toggle: mi_desk_light
    # on_double_click:
    #   - switch.toggle: relay_2

light:
  - platform: cwww
    name: "${name} Light"
    id: mi_desk_light
    gamma_correct: 1
    default_transition_length: 100ms
    restore_mode: ALWAYS_OFF
    cold_white: cold_white
    warm_white: warm_white
    cold_white_color_temperature: 153 mireds
    warm_white_color_temperature: 370 mireds

output:
  - platform: ledc
    pin: 18
    max_power: 0.85
    id: warm_white
  - platform: ledc
    pin: 19
    max_power: 0.85
    id: cold_white

sensor:
  - platform: rotary_encoder
    id: rotary
    pin_a: 21
    pin_b: 26
    resolution: "2"
    # min_value: 128
    # max_value: 255
    # on_value:
    #   - while:
    #     condition:
    #       binary_sensor.is_off: button
    #     then:
    #       - light.dim_relative:
    #         id: mi_desk_light
    #         relative_brightness: 5%
    #         transition_length: 0.1s
    #       - delay: 0.1s
    # filters:
    #   - or:
    #     - debounce: 0.1s
    #     - delta: 10
    #   - lambda: |-
    #       if (x < 0.0) return 0.0;
    #       if (x > 255.0) return 255.0;
    #       return x;
    # on_value:
    #   then:
    #     # - output.set_level:
    #     #     id: warm_white
    #     #     level: !lambda "return x/256.0;"
    #     - output.set_level:
    #         id: warm_white
    #         level: !lambda |-
    #           return x / 255;
    on_value:
      then:
        - lambda: |-
            float brightness;
            float temp = id(mi_desk_light).remote_values.get_color_temperature();
            auto call = id(mi_desk_light).turn_on();
            id(mi_desk_light).remote_values.as_brightness( &brightness );

            // positive rotation
            if (id(rotary).state > 0) {
              // 
              if (id(rotary_button).state) {
                temp -= 5.0f;
              } else {
                brightness -= 0.05f;
              }
              id(rotary).set_value(0);
            // negative rotation
            } else if (id(rotary).state < 0) {
              if (id(rotary_button).state) {
                temp += 5.0f;
              } else {
                brightness += 0.05f;
              }
              id(rotary).set_value(0);
            }

            // out of bounds check for brightness
            if (brightness < 0.1f) {
              brightness = 0.1f;
            } else if (brightness > 1.0f) {
              brightness = 1.0f;
            }

            // out of bounds check for color temp
            if (temp < 153.0f) {
              temp = 153.0f;
            } else if (temp > 370.0f) {
              temp = 370.0f;
            }

            // apply new settings
            call.set_brightness(brightness);
            call.set_color_temperature(temp);
            call.perform();