{
  "boardId": "esp32-2432s028",
  "name": "CYD LCD1602A",
  "summary": "LCD1602A HD44780 via PCF8574 I2C: SDA GPIO22, SCL GPIO27 — demo / hello / map / backlight; contrast = blue pot only",
  "description": "SoftSPI touch + LVGL. LCD1602A character LCD on I2C backpack (scan 0x27/0x3F). Contrast is hardware pot (Vo), not software. Backlight off usually unreadable on blue/white modules.",
  "tags": [
    "lcd1602a",
    "hd44780",
    "pcf8574",
    "i2c",
    "display",
    "touch",
    "lvgl"
  ],
  "media": {
    "preview": "media/preview.html"
  }
}