{
  "id": "arduino-lcd1602-keypad-shield",
  "name": "Arduino Lcd1602 Keypad Shield",
  "name_zh": "Arduino LCD1602 液晶按鍵擴展板",
  "category": "module/shield",
  "summary_zh": "Arduino LCD1602 液晶按鍵擴展板，主板採用LCD1602液晶顯示器，能夠顯示2行16個字符，擴展板左上方配備對比度調節旋鈕、背光燈選擇開關，底部設置了4 個方向按鍵、1 個選擇按鍵和一個複位按鍵，這款擴展板能夠把1602 液晶顯示器的複雜線路，變得簡單起來。",
  "specs": {
    "voltage_v": {
      "typ": 5.5
    },
    "current_ma": {
      "typ": 2
    },
    "dimensions_mm": {
      "l": 57,
      "w": 80,
      "h": 20
    },
    "weight_g": 52
  },
  "pins": [
    {
      "name": "A0",
      "type": "analog",
      "description": "Analog output from button matrix; different voltages indicate which button is pressed"
    },
    {
      "name": "RST",
      "type": "input",
      "description": "Active-low reset input; pulled low when reset button pressed"
    },
    {
      "name": "5V",
      "type": "power",
      "description": "5V power input/output"
    },
    {
      "name": "GND",
      "type": "ground"
    },
    {
      "name": "VIN",
      "type": "power",
      "description": "External power input"
    },
    {
      "name": "A1",
      "type": "analog"
    },
    {
      "name": "A2",
      "type": "analog"
    },
    {
      "name": "A3",
      "type": "analog"
    },
    {
      "name": "A4",
      "type": "analog"
    },
    {
      "name": "A5",
      "type": "analog"
    },
    {
      "name": "D4",
      "type": "output",
      "description": "LCD DB4 data line"
    },
    {
      "name": "D5",
      "type": "output",
      "description": "LCD DB5 data line"
    },
    {
      "name": "D6",
      "type": "output",
      "description": "LCD DB6 data line"
    },
    {
      "name": "D7",
      "type": "output",
      "description": "LCD DB7 data line"
    },
    {
      "name": "D8",
      "type": "output",
      "description": "LCD RS (register select)"
    },
    {
      "name": "D9",
      "type": "output",
      "description": "LCD EN (enable)"
    },
    {
      "name": "D10",
      "type": "output",
      "description": "LCD backlight control"
    }
  ],
  "attributes": {
    "液晶顯示器": "LCD1602",
    "顏色": "藍屏白字",
    "顯示容量": "16 × 2個字符",
    "字符尺寸": "2.95*4.35mm",
    "程式庫": "LiquidCrystal.h",
    "分辨率": "16x2"
  },
  "assets": {
    "pinout": {
      "files": [
        "pinout.jpeg"
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      "license": "CC-BY-4.0",
      "source": "original"
    },
    "photos": {
      "files": [
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        "photos/02.jpeg",
        "photos/03.jpeg",
        "photos/04.jpeg",
        "photos/05.jpeg",
        "photos/06.jpeg",
        "photos/07.jpeg",
        "photos/08.jpeg",
        "photos/09.jpeg"
      ],
      "license": "CC-BY-4.0",
      "source": "original"
    }
  },
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  "product_id": "18",
  "updated_at": "2026-09-12"
}