{
  "id": "wemos-d1-r2",
  "name": "Wemos D1 R2",
  "name_zh": "WeMos D1 R2 開發板",
  "manufacturer": "Wemos",
  "category": "board/esp",
  "summary_zh": "WeMos D1 R2 是WeMos 基於 ESP8266EX 開發的兼容 Arduino UNO 開發板。板上帶有WiFi的Arduino開發板，完美兼容Arduino UNO R3。利用ESP8266EX本身自帶WiFi的特性，相對於傳統的Arduino開發，省去了買 WiFi擴展板的費用，是物聯網開發板的不二之選。\nESP8266EX 內置 Tensilica L106 32 位MCU (微型控制器)，具有超低功耗和 16 位 RSIC，時鐘速度最高可達 160 MHz。支持RTOS (實時操作系統)，目前 Wi-Fi 協議棧只用了 20% 的 MIPS，其他均可用於用戶編程和開發。",
  "specs": {
    "voltage_v": {
      "typ": 3.3
    },
    "chip": [
      "CH340"
    ],
    "dimensions_mm": {
      "l": 68.7,
      "w": 53.3,
      "h": 15.5
    },
    "weight_g": 25,
    "memory": {
      "flash_mb": 4
    }
  },
  "pins": [
    {
      "name": "RESET",
      "type": "input",
      "description": "active-low reset"
    },
    {
      "name": "3.3V",
      "type": "power"
    },
    {
      "name": "5V",
      "type": "power",
      "description": "from USB or VIN"
    },
    {
      "name": "GND",
      "type": "ground"
    },
    {
      "name": "VIN",
      "type": "power",
      "description": "external supply input, 7-12V recommended"
    },
    {
      "name": "A0",
      "type": "analog",
      "description": "analog input, max 3.3V"
    },
    {
      "name": "SDA",
      "type": "bidirectional",
      "description": "I2C data / GPIO4"
    },
    {
      "name": "SCL",
      "type": "bidirectional",
      "description": "I2C clock / GPIO5"
    },
    {
      "name": "SCL/D1",
      "type": "bidirectional",
      "description": "I2C clock / GPIO5"
    },
    {
      "name": "SDA/D2",
      "type": "bidirectional",
      "description": "I2C data / GPIO4"
    },
    {
      "name": "SCK/D5",
      "type": "bidirectional",
      "description": "SPI clock / GPIO14"
    },
    {
      "name": "MISO/D6",
      "type": "bidirectional",
      "description": "SPI MISO / GPIO12"
    },
    {
      "name": "MOSI/D7",
      "type": "bidirectional",
      "description": "SPI MOSI / GPIO13"
    },
    {
      "name": "SS/D8",
      "type": "bidirectional",
      "description": "SPI chip select / GPIO15"
    },
    {
      "name": "D0",
      "type": "bidirectional",
      "description": "GPIO16"
    },
    {
      "name": "D1",
      "type": "bidirectional",
      "description": "GPIO5"
    },
    {
      "name": "D2",
      "type": "bidirectional",
      "description": "GPIO4"
    },
    {
      "name": "D3",
      "type": "bidirectional",
      "description": "GPIO0"
    },
    {
      "name": "D4",
      "type": "bidirectional",
      "description": "GPIO2"
    },
    {
      "name": "D5",
      "type": "bidirectional",
      "description": "GPIO14"
    },
    {
      "name": "D6",
      "type": "bidirectional",
      "description": "GPIO12"
    },
    {
      "name": "D7",
      "type": "bidirectional",
      "description": "GPIO13"
    },
    {
      "name": "D8",
      "type": "bidirectional",
      "description": "GPIO15"
    },
    {
      "name": "D9/RX",
      "type": "bidirectional",
      "description": "GPIO3 / UART RX"
    },
    {
      "name": "D10/TX",
      "type": "bidirectional",
      "description": "GPIO1 / UART TX"
    },
    {
      "name": "3V3",
      "type": "power"
    },
    {
      "name": "TX",
      "type": "output",
      "description": "UART transmit"
    },
    {
      "name": "RX",
      "type": "input",
      "description": "UART receive"
    }
  ],
  "attributes": {
    "微控制器": "ESP8266EX",
    "最高運算速度": "160Mhz",
    "無線芯片": "ESP8266",
    "無線標準": "802.11 b/g/n",
    "數碼 I/O Pins": "11",
    "模擬 I/O Pins": "1",
    "OTA無線上傳": "支援",
    "Github": "https://github.com/wemos/Arduino_D1(https://github.com/wemos/Arduino_D1)"
  },
  "assets": {
    "pinout": {
      "files": [
        "pinout.jpg"
      ],
      "license": "CC-BY-4.0",
      "source": "original"
    },
    "photos": {
      "files": [
        "photos/01.jpeg",
        "photos/02.jpeg",
        "photos/03.jpeg",
        "photos/04.jpeg",
        "photos/05.jpeg",
        "photos/06.jpeg"
      ],
      "license": "CC-BY-4.0",
      "source": "original"
    }
  },
  "source_images": [
    {
      "url": "https://hk.botsheet.com/wp-content/uploads/2021/04/wemos-d1-r2-01.jpeg?v=1657910626",
      "file": "wemos-d1-r2-01.jpeg"
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    {
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      "file": "wemos-d1-r2-01.jpeg"
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  ],
  "product_id": "2081",
  "updated_at": "2026-09-12"
}