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149 lines
5.0 KiB
Markdown
149 lines
5.0 KiB
Markdown
# ENV
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<el-tag effect="plain">SKU:U001</el-tag>
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<div class="product_pic"><img src="assets/img/product_pics/unit/env/unit_env_01.webp"></div>
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## 描述
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**ENV** 是一款环境传感器,内部集成DHT12和BMP280，用于检测温度、湿度、大气压值数据.DHT12是DHT11湿度温度传感器的升级版本，完全向下兼容，测量数值更精确,并添加了I2C接口.BMP280是一款专为移动应用而设计的绝对气压传感器，具有较高的精准度.适合应用在一些小型低功耗终端上.对于需要对环境数据进行快速采集检测的项目来说, ENV Unit是一个兼顾性能与性价比的不错选择.
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## 产品特性
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- HY2.0-4P 接口, 支持平台 [UIFlow](http://flow.m5stack.com) 、 [Arduino](http://www.arduino.cc).
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- 2x LEGO 兼容孔
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## 包含
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- 1x ENV Unit
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- 1x HY2.0-4P线缆
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## 应用
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- 气象站
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- 储谷仓环境监控
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## 规格参数
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<table>
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<tr style="font-weight:bold">
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<td>规格</td>
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<td>参数</td>
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</tr>
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<tr>
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<td>温度测量范围/误差</td>
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<td>-20 ~ 60 ℃ / ±0.2℃</td>
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</tr>
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<tr>
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<td>湿度测量范围/误差</td>
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<td>20 ~ 95 %RH / ±0.1%</td>
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</tr>
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<tr>
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<td>大气压测量范围/误差</td>
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<td>300 ~ 1100hPa / ±1hPa</td>
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</tr>
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<tr>
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<td>通信协议</td>
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<td>I2C：DHT12(0x5C),BMP280(0x76)</td>
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</tr>
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<tr>
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<td>工作温度</td>
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<td>32°F to 104°F ( 0°C to 40°C )</td>
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</tr>
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<tr>
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<td>净重</td>
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<td>4g</td>
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</tr>
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<tr>
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<td>毛重</td>
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<td>17g</td>
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</tr>
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<tr>
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<td>产品尺寸</td>
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<td>24.2*32.2*8.1mm</td>
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</tr>
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<tr>
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<td>包装尺寸</td>
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<td>67*53*12mm</td>
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</tr>
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<tr>
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<td>外壳材质</td>
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<td>Plastic ( PC )</td>
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</tr>
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</table>
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## EasyLoader
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>EasyLoader是一个简洁快速的程序烧录器，其内置了一个产品相关的案例程序，通过简单步骤将其烧录至主控，即可进行一系列的功能验证.**(程序烧录前，请根据设备类型安装相应驱动程序. M5Core型主机[请点击此处查看CP210X驱动安装教程](zh_CN/arduino/arduino_development?id=安装串口驱动)，M5StickC/V/T/ATOM系列可免驱动使用)**
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<div class="easyloader-box">
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<div style="background-color:white;">
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<div><img src="https://m5stack.oss-cn-shenzhen.aliyuncs.com/image/easyloader_intro.webp"></div>
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<div class="easyloader-btn">
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<a href="https://m5stack.oss-cn-shenzhen.aliyuncs.com/EasyLoader/Windows/UNIT/For%20M5Core/EasyLoader_ENV_UNIT_With_M5Core.exe">Windows</a>
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<a href="https://m5stack.oss-cn-shenzhen.aliyuncs.com/EasyLoader/MacOS/UNIT/EasyLoader_ENV_UNIT_With_M5Core.dmg">MacOS</a>
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<!-- <a>Linux</a>
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<a>MacOS</a> -->
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</div>
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</div>
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<div>
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<video id="example_video" controls>
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<source src="https://m5stack.oss-cn-shenzhen.aliyuncs.com/video/Product_example_video/Unit/ENV_UNIT.mp4" type="video/mp4">
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</video>
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<div class="easyloader-mask">
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<a>
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<svg id="play-btn" t="1583228776634" class="icon" viewBox="0 0 1024 1024" version="1.1" xmlns="http://www.w3.org/2000/svg" p-id="4152" width="75" height="75"><path d="M512 0C229.216 0 0 229.216 0 512s229.216 512 512 512 512-229.216 512-512S794.784 0 512 0z m0 928C282.24 928 96 741.76 96 512S282.24 96 512 96s416 186.24 416 416-186.24 416-416 416zM384 288l384 224-384 224z" p-id="4153" fill="#007aff"></path></svg></a>
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<p>案例描述:</p>
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<p>显示温湿度与大气压数据.</p>
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</div>
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</div>
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</div>
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### 管脚映射
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<table>
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<tr><td>M5Core(PORT A)</td><td>GPIO22</td><td>GPIO21</td><td>5V</td><td>GND</td></tr>
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<tr><td>ENV Unit</td><td>SCL</td><td>SDA</td><td>5V</td><td>GND</td></tr>
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</table>
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## 原理图
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<img src="assets/img/product_pics/unit/env_sch.JPG">
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## 相关链接
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- **Datasheet**
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- [BMP280](https://m5stack.oss-cn-shenzhen.aliyuncs.com/resource/docs/datasheet/hat/BMP280-DS001-11_en.pdf)
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- [DHT12](https://m5stack.oss-cn-shenzhen.aliyuncs.com/resource/docs/datasheet/hat/DHT12_en.pdf)
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## 案例程序
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### 1. Arduino
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该案例将使用 ENV Unit ，实现温度、湿度、大气压数据的读取.
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1, 在进行程序编译前，请安装`Adafruit BMP280 Library`
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2, 并将`Adafruit_Sensor.h`复制至`C:\Users\<user_name>\Documents\Arduino\libraries\Adafruit_BMP280_Library`
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- [点击此处获取Arduino示例程序](https://github.com/m5stack/M5Stack/tree/master/examples/Unit/ENV_DHT12_BMP280)
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### 2. UIFlow
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- [请点击此处获取UIFlow示例](https://github.com/m5stack/M5-ProductExampleCodes/tree/master/Unit/ENV/UIFlow)
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<img src="assets/img/product_pics/unit/unit_example/ENV/example_unit_env_05.webp" width="60%">
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<script>
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var purchase_link = 'https://m5stack.com/collections/m5-unit/products/mini-env-sensor-unit';
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anchor_search(purchase_link);
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scrollFunc();
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</script> |