Lanbon L8 Smart Switch Panel

Drivers

• Processor: ESP32-WROVER-B
• Touchscreen: 6336
• Display: ST7789 (using ili9xxxx plaform)

GPIO Pinout

SPI (used for display)

Pin	Function
GPIO19	clock
GPIO23	mosi
GPIO25	miso
GPIO22	cs
GPIO21	dc
GPIO18	reset

I²C (used for touchscreen)

Pin	Function
GPIO4	i2c SDA
GPIO0	i2c SCL

Backlight

Pin	Function
GPIO5	backlight

Mood Light

Pin	Function	Newer devices
GPIO26	red	controls WS2811
GPIO32	green	unused
GPIO33	blue	unused

Relay (3-gang switch model)

Pin	Function
GPIO12	relay #1
GPIO14	relay #2
GPIO27	relay #3

How To Flash

See BlackAdder’s instruction on how to flash custom firmware. No soldering required.

Example Configuration

esp32:
  variant: esp32
  framework:
    type: esp-idf

psram:
  speed: 80MHz

output:
  - platform: ledc
    pin: GPIO5
    id: backlight_pwm
  - platform: ledc
    pin: GPIO26
    id: moodRed
  - platform: ledc
    pin: GPIO32
    id: moodGreen
  - platform: ledc
    pin: GPIO33
    id: moodBlue
  - platform: gpio
    pin: GPIO12
    id: relay_1
  - platform: gpio
    pin: GPIO14
    id: relay_2
  - platform: gpio
    pin: GPIO27
    id: relay_3

light:
  - platform: monochromatic
    name: "Backlight"
    id: backlight
    output: backlight_pwm
    restore_mode: ALWAYS_ON
  # Older devices use 3-channel RGB moodlight
  - platform: rgb
    name: "Mood Light"
    red: moodRed
    green: moodGreen
    blue: moodBlue
  # Newer devices use a WS2811 controller
  # Make sure to disable the output on GPIO26
  #- platform: esp32_rmt_led_strip
  #  rgb_order: RGB
  #  pin: GPIO26
  #  num_leds: 8
  #  chipset: ws2811
  #  name: "Mood Light"

spi:
  clk_pin: GPIO19
  mosi_pin: GPIO23
  miso_pin: GPIO25

i2c:
  sda: GPIO4
  scl: GPIO0

display:
  - platform: mipi_spi
    model: LANBON-L8

touchscreen:
  platform: ft63x6
  calibration:
    x_min: 0
    y_min: 0
    x_max: 230
    y_max: 312
  on_release:
    - if:
        condition: lvgl.is_paused
        then:
          - lvgl.resume:
          - lvgl.widget.redraw:
          - light.turn_on: backlight

lvgl:
  on_idle:
    timeout: !lambda "return 10000;"
    then:
      - light.turn_off: backlight
      - lvgl.pause:
  pages: ...