# Wemos D1 R2(WeMos D1 R2 開發板)

## 基本資料

- ID: wemos-d1-r2
- 分類: board/esp(ESP 開發板)
- 製造商: Wemos

## 規格

- 供電電壓: 3.3 V
- 晶片: CH340
- 尺寸: 68.7 × 53.3 × 15.5 mm
- 重量: 25 g

## 記憶體

- Flash (Flash): 4 MB

## 針腳

| 名稱 | 類型 | 說明 |
| --- | --- | --- |
| RESET | input | active-low reset |
| 3.3V | power |  |
| 5V | power | from USB or VIN |
| GND | ground |  |
| VIN | power | external supply input, 7-12V recommended |
| A0 | analog | analog input, max 3.3V |
| SDA | bidirectional | I2C data / GPIO4 |
| SCL | bidirectional | I2C clock / GPIO5 |
| SCL/D1 | bidirectional | I2C clock / GPIO5 |
| SDA/D2 | bidirectional | I2C data / GPIO4 |
| SCK/D5 | bidirectional | SPI clock / GPIO14 |
| MISO/D6 | bidirectional | SPI MISO / GPIO12 |
| MOSI/D7 | bidirectional | SPI MOSI / GPIO13 |
| SS/D8 | bidirectional | SPI chip select / GPIO15 |
| D0 | bidirectional | GPIO16 |
| D1 | bidirectional | GPIO5 |
| D2 | bidirectional | GPIO4 |
| D3 | bidirectional | GPIO0 |
| D4 | bidirectional | GPIO2 |
| D5 | bidirectional | GPIO14 |
| D6 | bidirectional | GPIO12 |
| D7 | bidirectional | GPIO13 |
| D8 | bidirectional | GPIO15 |
| D9/RX | bidirectional | GPIO3 / UART RX |
| D10/TX | bidirectional | GPIO1 / UART TX |
| 3V3 | power |  |
| TX | output | UART transmit |
| RX | input | UART receive |

## 其他規格

- 微控制器 (微控制器): ESP8266EX
- 最高運算速度 (最高運算速度): 160Mhz
- 無線芯片 (無線芯片): ESP8266
- 無線標準 (無線標準): 802.11 b/g/n
- 數碼 I/O Pins (數碼 I/O Pins): 11
- 模擬 I/O Pins (模擬 I/O Pins): 1
- OTA無線上傳 (OTA無線上傳): 支援
- Github (GitHub): https://github.com/wemos/Arduino_D1(https://github.com/wemos/Arduino_D1)

## 素材

- pinout: pinout.jpg(授權 CC-BY-4.0;來源:original)
- photos: photos/01.jpeg, photos/02.jpeg, photos/03.jpeg, photos/04.jpeg, photos/05.jpeg, photos/06.jpeg(授權 CC-BY-4.0;來源:original)