65 lines
2.3 KiB
Markdown
65 lines
2.3 KiB
Markdown
# DFRobot_DHT20
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The DHT20 temperature & humidity sensor is the newly upgraded version of the DHT11. The DHT20 features a brand-new ASIC dedicated chip, an improved MEMS semiconductor capacitive humidity sensor element and a standard on-chip temperature element. All sensors are factory calibrated and characterized by low power, high precision & stability, fast response, and strong anti-interference. Moreover, the DHT20 performance parameters of accuracy, power supply voltage, measurement range and response time have been enhanced greatly over the previous generation,making it more cost-effective. Besides that, the DHT20 temperature & humidity sensor employs I2C digital output protocol, which is very suitable for HVAC,automobiles, data loggers, weather stations, home appliances, and other related temperature and humidity detection and controlled areas. <br>
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## 产品链接（链接到英文商城）
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SKU：产品名称
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## Table of Contents
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* [Summary](#summary)
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* [Installation](#installation)
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* [Methods](#methods)
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* [Compatibility](#compatibility)
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* [History](#history)
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* [Credits](#credits)
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## Summary
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Provide an RaspberryPi library to get Humidity and Temperature by reading data from dht20.
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## Installation
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Download the DFRobot_DHT20 file to the Raspberry Pi file directory, then run the following command line to use this sensor:
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## Methods
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```python
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'''
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@brief init function
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@return Return 0 if initialization succeeds, otherwise return non-zero and error code.
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'''
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def begin(self ):
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'''
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@brief Get ambient temperature, unit: °C
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@return ambient temperature, its measurement range is (-40°C ~ 80°C)
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'''
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def get_temperature(self):
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'''
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@brief Get relative humidity, unit: %RH.
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@return relative humidity, its measurement range is (1-100%)
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'''
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def get_humidity(self):
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```
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## Compatibility
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MCU | Work Well | Work Wrong | Untested | Remarks
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------------------ | :----------: | :----------: | :---------: | -----
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Raspberry Pi | √ | | |
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## History
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- Date 2021-7-2
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- Version V0.1
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## Credits
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Written by fengli(li.feng@dfrobot.com), 2021.7.2 (Welcome to our [website](https://www.dfrobot.com/))
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