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Xiaomi Mi Smart LED Desk Lamp Pro

Xiaomi Mi Smart LED Desk Lamp Pro

Device Type: light
Electrical Standard: eu
Board: esp32

Install ESPHome on Xiaomi Mi Smart LED Desk Lamp Pro

Materials

To install ESPHome onto your Lamp you need

  • Soldering iron
  • Serial to USB stick
  • 3 Volt Power from extern or the Serial-USB

Open the Device

Unplug your Lamp and remove the screw under the rubber feet. Marked in the picture.

a Picture of the four screws and where they are placed under the rubber feet.

Solder your debugger onto the Board

Plugin the 3Volts last.

a Picture of the soldering spots to connect the Serial USB.

(Optional) backup old Firmware

If you want to backup the old firmware just use esptool.

Just replace COM or ttyUSB.

Linux

python3 -m esptool -b 115200 --port /dev/ttyUSB0 read_flash 0x00000 0x400000 your/folder/firmwaredump.bin

Windows

python.exe -m esptool -b 115200 --port COM3 read_flash 0x00000 0x400000 your/folder/firmwaredump.bin
esphome:
  name: midesklamppro


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


# Enable logging
logger:


api:
  reboot_timeout: 0s
  encryption:
    key: !secret encryption_key


ota:
  password: !secret password


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
                  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:
            id: light1
            transition_length: 0.5s
    filters:
      - delayed_off: 5ms


number:
  - id: freq1
    name: "Flicker Frequency"
    icon: "mdi:sine-wave"
    unit_of_measurement: "Hz"
    platform: template
    min_value: 0
    max_value: 100000
    initial_value: 100000
    mode: box
    step: 1
    set_action:
      - output.ledc.set_frequency:
          id: output_cw
          frequency: !lambda return x;
      - output.ledc.set_frequency:
          id: output_ww
          frequency: !lambda return x;


output:
  - platform: ledc
    pin: GPIO2
    id: output_cw
    power_supply: power
    frequency: 100000Hz
  - platform: ledc
    pin: GPIO4
    id: output_ww
    power_supply: power
    frequency: 100000Hz


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


light:
  - platform: cwww
    id: light1
    name: "Mi Desk Lamp Pro"
    default_transition_length: 0s
    constant_brightness: true
    cold_white: output_cw
    warm_white: output_ww
    cold_white_color_temperature: 4800 K
    warm_white_color_temperature: 2500 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: 1
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