lamp.yaml

esphome:
    name: midesklamppro
    comment: Mi Smart LED Desk Lamp Pro using ESPHome

esp32:
    board: esp32doit-devkit-v1
    framework:
        type: esp-idf
        sdkconfig_options:
            CONFIG_FREERTOS_UNICORE: y
        advanced:
            ignore_efuse_mac_crc: true

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

# Enable logging
logger:

api:
    reboot_timeout: 0s

ota:
    password: "ota-desk-lamp-prop"

sensor:
    -   platform: rotary_encoder
        id: rotation
        pin_a: GPIO26
        pin_b: GPIO27
        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*10)));
                                    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
                                    transition_length: 0s
                                    relative_brightness: !lambda |-
                                        return x / 25.0;
                # 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:
                -   light.toggle: light1

output:
    -   platform: ledc
        pin: GPIO2
        id: output_cw
        frequency: 40000Hz
        power_supply: power
    -   platform: ledc
        pin: GPIO4
        id: output_ww
        power_supply: power
        frequency: 40000Hz

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

light:
    -   platform: cwww
        id: light1
        default_transition_length: 400ms
        constant_brightness: true
        name: "Lights"
        cold_white: output_cw
        warm_white: output_ww
        cold_white_color_temperature: 4800 K
        warm_white_color_temperature: 2650 K #2500k is the original value of the lamp. To correct binning for 2700k to look more like 2700k use 2650k instead
        restore_mode: RESTORE_DEFAULT_OFF
        gamma_correct: 0