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206 lines
6.9 KiB
Markdown
206 lines
6.9 KiB
Markdown
# ENV II
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<el-tag effect="plain">SKU:U001-B</el-tag>
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<div class="product_pic"><img src="assets/img/product_pics/unit/envII/envII_01.webp"></div>
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## Description
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**ENV II** is an environmental sensor which can sense temperature, humidity and atmospheric pressure. It integrates the SHT30 and BMP280 sensors and is programmed over the I2C protocol(SHT30:0x44, BMP280:0x76).
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SHT30 is a digital temperature and humidity sensor with high precision and low power consumption.
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BMP280 is an absolute barometric pressure sensor which is especially designed for mobile applications. It offers the highest flexibility to optimize the device regarding power consumption, resolution and filter performance.
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## Product Features
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- High-precision
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- Support I2C
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- GROVE interface, support [UIFlow](http://flow.m5stack.com) and [Arduino](http://www.arduino.cc)
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- Two Lego installation holes
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## Includes
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- 1x ENV II Unit
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- 1x Grove Cable
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## Specification
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<table class="table-1">
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<thead>
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<tr>
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<th>Specification</th>
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<th>Parameter</th>
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</tr>
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</thead>
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<tbody>
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<tr>
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<td>Max temperature measuring range</td>
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<td>-40 ~ 120 ℃</td>
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</tr>
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<tr>
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<td>Typical temperature tolerance</td>
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<td>0 ~ 60 ℃/±0.2℃</td>
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</tr>
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<tr>
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<td>Humidity measuring range</td>
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<td>10 ~ 90 %RH / ±2%</td>
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</tr>
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<tr>
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<td>Air pressure measuring range</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>Communication protocol</td>
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<td>I2C：SHT30(0x44),BMP280(0x76)</td>
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</tr>
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<tr>
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<td>Operating temperature range</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>Net weight</td>
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<td>5g</td>
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</tr>
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<tr>
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<td>Gross weight</td>
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<td>17g</td>
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</tr>
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<tr>
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<td>Product Size</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>Package Size</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>Case material</td>
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<td>Plastic ( PC )</td>
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</tr>
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</tbody>
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</table>
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## Comparison between SHT30 and DHT12
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<table class="table-1">
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<thead>
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<tr>
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<th>/</th>
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<th>SHT30</th>
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<th>DHT12</th>
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</tr>
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</thead>
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<tbody>
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<tr>
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<td>Max temperature measuring range</td>
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<td>-40 ~ 120 ℃</td>
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<td>-20 ~ 60 ℃</td>
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</tr>
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<tr>
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<td>Typical temperature resolution</td>
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<td>0 ~ 60 ℃/±0.2℃</td>
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<td>±0.2℃</td>
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</tr>
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<tr>
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<td>Humidity measuring range/resolution</td>
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<td>10 ~ 90 %RH / ±2%</td>
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<td>20 ~ 95 %RH/0.1%</td>
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</tr>
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</tbody>
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</table>
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## EasyLoader
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>EasyLoader is a concise and fast program writer, which has a built-in case program related to the product. It can be burned to the main control by simple steps to perform a series of function verification. Please install the corresponding driver according to the device type. M5Core host [Please click here to view the CP210X driver installation tutorial](en/arduino/arduino_development), M5StickC/V/T/ATOM series can be used without driver)
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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_ENV2_UNIT_With_M5Core.exe">Windows</a>
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<a href="https://m5stack.oss-cn-shenzhen.aliyuncs.com/EasyLoader/MacOS/UNIT/EasyLoader_ENV2_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/ENVII.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>Description:</p>
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<p>Display temperature, humidity and atmospheric pressure data.</p>
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</div>
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</div>
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</div>
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### PinMap
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<table>
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<tr><td>M5Core(GROVE A)</td><td>GPIO22</td><td>GPIO21</td><td>5V</td><td>GND</td></tr>
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<tr><td>ENV II Unit</td><td>SCL</td><td>SDA</td><td>5V</td><td>GND</td></tr>
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</table>
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## Related Link
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- **[BMP280 Datasheet](https://m5stack.oss-cn-shenzhen.aliyuncs.com/resource/docs/datasheet/hat/BMP280-DS001-11_en.pdf)**
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- **[SHT30 Datasheet](https://m5stack.oss-cn-shenzhen.aliyuncs.com/resource/docs/datasheet/unit/SHT3x_Datasheet_digital.pdf)**
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## Schematic
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<img src="assets/img/product_pics/unit/envII_sch.webp">
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## Example
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?>This case uses ENVII Unit to read temperature, humidity, and atmospheric pressure data. Please select the corresponding case program below according to the equipment you are using.
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<el-card class="box-card" style="margin-bottom:20px">
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<div slot="header" class="clearfix">
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<span style="font-size: 22px; font-weight: bold;">Arduino</span>
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<i class="el-icon-s-management" style="float: right;"></i>
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</div>
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<div class="box-card-item">
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<a href='https://github.com/m5stack/M5Stack/tree/master/examples/Unit/ENVII_SHT30_BMP280'><el-tag>BASIC/M5GO/FIRE</el-tag></a>
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</div>
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<div class="box-card-item">
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<a href='https://github.com/m5stack/M5Core2/tree/master/examples/Unit/ENVII_SHT30_BMP280'><el-tag>Core2</el-tag></a>
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</div>
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</el-card>
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>Note: 1. Please install [Adafruit BMP280 Library](https://github.com/adafruit/Adafruit_BMP280_Library) before compiling the program
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```clike
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SHT3X.h - API
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//
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float cTemp=0;
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float fTemp=0;
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float humidity=0
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Adafruit_BMP280.h - API
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float readPressure(void);
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```
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### 2. UIFlow
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- [Click here to download the UIFlow example](https://github.com/m5stack/M5-ProductExampleCodes/tree/master/Unit/ENVII/UIFlow)
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<img src="assets/img/product_pics/unit/envII/envII_03.webp" width="60%">
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<el-divider content-position="right">Last updated: 2020-12-11</el-divider>
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<script>
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var purchase_link = 'https://m5stack.com/collections/all/products/env-ii-unit';
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anchor_search(purchase_link);
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scrollFunc();
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</script>
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