Lilka

ESP32-S3 based modular handheld device designed as an educational and gaming open-hardware console (hardware v2.3). It is supplied as a self-assembly kit and features a 1.69” 280×240 IPS display (ST7789), physical navigation buttons, an internal speaker with I2S audio, microSD support, USB-C power, and expandable GPIO for custom projects.

Product Images

GPIO Pinout

Pin	Function
46	Display power (GPIO output)
1	I2S LRCLK for speaker
42	I2S BCLK for speaker
2	I2S DOUT — audio output
3	ADC input for battery voltage
18	SPI CLK for display
17	SPI MOSI for display
15	ST7789 DC
7	ST7789 CS
38	Button Up
41	Button Down
39	Button Left
40	Button Right
5	Button A
6	Button B
10	Button C
9	Button D
4	Button Start
0	Button Select

Notes: GPIO46 and GPIO16 must be set HIGH - the former controls display power, the latter drives display backlight and button power rail.

esphome:
  name: lilka
esp32:
  board: esp32-s3-devkitc-1
  framework:
    type: esp-idf
    version: recommended
  flash_size: 16MB
psram:
  mode: octal
  speed: 80MHz
wifi:
  ssid: !secret wifi_ssid
  password: !secret wifi_password
  ap:
    ssid: "Lilka Fallback Hotspot"
    password: "lilka"
captive_portal:
logger:
api:
ota:
spi:
  clk_pin: 18
  mosi_pin: 17
display:
  - platform: mipi_spi
    model: ST7789V
    id: my_display
    dc_pin: 15
    cs_pin: 7
    rotation: 270
    invert_colors: true
    color_order: BGR
    pixel_mode: 16bit
    dimensions:
      width: 280
      height: 240
      offset_width: 20
    auto_clear_enabled: false
i2s_audio:
  - id: i2s_out
    i2s_lrclk_pin: GPIO1
    i2s_bclk_pin: GPIO42
speaker:
  - platform: i2s_audio
    id: lilka_speaker
    dac_type: external
    i2s_audio_id: i2s_out
    i2s_dout_pin: GPIO2
    channel: mono
    sample_rate: 16000
    bits_per_sample: 16bit
binary_sensor:
  - platform: gpio
    pin:
      number: 38
      mode: INPUT_PULLUP
      inverted: true
    id: button_up
  - platform: gpio
    pin:
      number: 41
      mode: INPUT_PULLUP
      inverted: true
    id: button_down
  - platform: gpio
    pin:
      number: 39
      mode: INPUT_PULLUP
      inverted: true
    id: button_left
  - platform: gpio
    pin:
      number: 40
      mode: INPUT_PULLUP
      inverted: true
    id: button_right
  - platform: gpio
    pin:
      number: 5
      mode: INPUT_PULLUP
      inverted: true
    id: button_a
  - platform: gpio
    pin:
      number: 6
      mode: INPUT_PULLUP
      inverted: true
    id: button_b
  - platform: gpio
    pin:
      number: 10
      mode: INPUT_PULLUP
      inverted: true
    id: button_c
  - platform: gpio
    pin:
      number: 9
      mode: INPUT_PULLUP
      inverted: true
    id: button_d
  - platform: gpio
    pin:
      number: 4
      mode: INPUT_PULLUP
      inverted: true
    id: button_start
  - platform: gpio
    pin:
      number: 0
      mode: INPUT_PULLUP
      inverted: true
    id: button_select