# Nodemcu V2 Esp8266 Development Board(NodeMCU v2 ESP8266開發板)

## 基本資料

- ID: nodemcu-v2-esp8266-development-board
- 分類: board/esp(ESP 開發板)
- 型號: NodeMCU Lua v2

## 規格

- 供電電壓: 5 V
- 晶片: ESP-12E, CP2102
- 尺寸: 25 × 48 × 13 mm
- 重量: 8 g

## 記憶體

- Flash (Flash): 4 MB

## 針腳

| 名稱 | 類型 | 說明 |
| --- | --- | --- |
| TOUT | analog | ADC input, max 1.0V, do not connect 3.3V directly |
| RESERVED | nc | Do not connect |
| RESERVED | nc | Do not connect |
| SD1 | bidirectional | GPIO10, SPI data HSPIWP |
| SD2 | bidirectional | GPIO9, SPI data HSPIHD |
| SD3 | bidirectional | GPIO8, SPI data U1RXD/SPI_MOSI |
| CMD | bidirectional | GPIO11, SPI_CS0 |
| CLK | bidirectional | GPIO7, SPI_MISO |
| SD0 | bidirectional | GPIO6, SPI_CLK |
| GND | ground |  |
| 3V3 | power |  |
| EXT_RSTB | input | External reset, active-low |
| CH_PD | input | Chip enable, active-high |
| GND | ground |  |
| Vin | power | External power input, approx. 4.5-10V |
| D0 | bidirectional | GPIO16, wake-up capable, connects to XPD_DCDC |
| D1 | bidirectional | GPIO5 |
| D2 | bidirectional | GPIO4 |
| D3 | bidirectional | GPIO0, SPI_CS2 |
| D4 | bidirectional | GPIO2, U1TXD |
| 3V3 | power |  |
| GND | ground |  |
| D5 | bidirectional | GPIO14, HSPI_CLK |
| D6 | bidirectional | GPIO12, HSPI_MISO |
| D7 | bidirectional | GPIO13, HSPI_MOSI |
| D8 | bidirectional | GPIO15, HSPI_CS |
| RX | input | UART RX, GPIO3 |
| TX | output | UART TX, GPIO1 |
| GND | ground |  |
| 3V3 | power |  |

## 其他規格

- 連接 (Connection): MicroUSB
- 無線網絡 (Wi-Fi): 802.11 b/g/n
- 工作模式 (Operating mode): 支援 STA / AP / STA+AP
- 記憶體 (Memory): 20kBytes

## 素材

- dimensions: dimensions.jpeg(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(授權 CC-BY-4.0;來源:original)
- pinout: pinout.jpeg(授權 CC-BY-4.0;來源:original)