# RFID底座 - m5go底座升级版 {docsify-ignore-all}

<img src="assets/img/product_pics/base/rfid_01.png" alt="basic_02" width="250" height="250">

* * *

:memo:**[描述](#描述)**&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;🛒**[购买链接](https://item.taobao.com/item.htm?spm=a1z10.3-c.w4002-1172588106.10.57b2425eKUxTqx&id=584855077636)**

<!-- :memo:**[描述](#描述)**&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;:octocat:**[例程](#例程)**&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;:electric_plug:**[原理图](#原理图)**&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;🛒**[购买链接](https://item.taobao.com/item.htm?spm=a1z10.3-c.w4002-1172588106.10.57b2425eKUxTqx&id=584855077636)** -->

## 描述

<mark>RFID底座</mark>是[M5GO底座](ja/product_documents/base/m5go_base)是升级版，在M5GO底座的基础上增加了RFID功能。

RFID底座由**330mAh的电池**、M-Bus总线接口、麦克风、红色的充电指示LED、2条RGB灯条(10颗)、PORT B和PORT C组成。

M5GO底座在充电过程中，红色LED闪烁，充满了常亮。

## 管脚映射

**POGO Pin**

| POGO Pin       | ESP32 Chip    |
| :----------:  |:------------: |
| SCL           | GPIO22        |
| SDA           | GPIO21        |

**LED Bar(Neopixel)**

*有10颗RGB灯，左右各5颗*

| LED Pin       | ESP32 Chip    |
| :----------:  |:------------: |
| LED Pin           | GPIO15        |

**麦克风MIC**

| MIC Pin       | ESP32 Chip    |
| :----------:  |:------------: |
| MIC Pin           | GPIO34        |

**GROVE接口**

| PORT A(I2C)       | ESP32 Chip    |
| :----------:  |:------------: |
| SCL           | GPIO22        |
| SDA           | GPIO21        |
| 5V            | 5V            |
| GND           | GND           |

| PORT B(I/O)       | ESP32 Chip    |
| :----------:  |:------------: |
| G36           | GPIO36        |
| G26           | GPIO26        |
| 5V            | 5V            |
| GND           | GND           |

| PORT C(UART2)       | ESP32 Chip    |
| :----------:  |:------------: |
| RXD           | GPIO16        |
| TXD           | GPIO17        |
| 5V            | 5V            |
| GND           | GND           |

**M-Bus**

<figure>
  <img src="assets/img/product_pics/core/M-BUS.png" alt="M_BUS" width="500" height="500">
</figure>

## 相关链接

- **[官方频道视频](https://i.youku.com/i/UNjE1ODA2MzE0OA==?spm=a2hzp.8253869.0.0)**

- **[官方论坛](http://forum.m5stack.com/)**

<!-- ## 例程

### 1. Arduino IDE

*以下仅为用法示意，并不完整。如果需要完整例程请点击[这里](https://github.com/m5stack/M5Stack/tree/master/examples/Unit/ENV)。*

```arduino
/
    Install Adafruit BMP280 Library first.
*/
#include <M5Stack.h>
#include "DHT12.h"
#include <Wire.h> //The DHT12 uses I2C comunication.
#include <Adafruit_Sensor.h>
#include <Adafruit_BMP280.h>

// new two objects
DHT12 dht12;
Adafruit_BMP280 bme;

// initialization
M5.begin();
Wire.begin();
bme.begin();

// read data
float tmp = dht12.readTemperature();
float hum = dht12.readHumidity();
float pressure = bme.readPressure();
``` -->

<!-- ### 2. UIFlow

*具体例程请点击[这里](https://github.com/m5stack/M5-ProductExampleCodes/tree/master/Unit/ENV/UIFlow)。*

<img src="assets/img/product_pics/unit/unit_example/ENV/example_unit_env_01.png" width="30%" height="30%"> <img src="assets/img/product_pics/unit/unit_example/ENV/example_unit_env_02.png" width="55%" height="55%"> -->

<!-- ## 原理图

<img src="assets/img/product_pics/unit/env_sch.JPG">

### 管脚映射

<table>
<tr><td>M5Core(GROVE接口A)</td><td>GPIO22</td><td>GPIO21</td><td>5V</td><td>GND</td></tr>
 <tr><td>ENV温湿度和压力传感器Unit</td><td>SCL</td><td>SDA</td><td>5V</td><td>GND</td></tr>
</table> -->