first commit

libraries/DFRobot_DHT20/python/raspberrypi/README.md

@@ -0,0 +1,65 @@
+# DFRobot_DHT20
+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>
+
+![正反面svg效果图](https://github.com/cdjq/DFRobot_LIS2DW12/raw/master/resources/images/SEN0245svg4.png)
+
+## 产品链接（链接到英文商城）
+    SKU：产品名称
+## Table of Contents
+
+* [Summary](#summary)
+* [Installation](#installation)
+* [Methods](#methods)
+* [Compatibility](#compatibility)
+* [History](#history)
+* [Credits](#credits)
+
+## Summary
+
+Provide an RaspberryPi library to get Humidity and Temperature by reading data from dht20.
+## Installation
+
+Download the DFRobot_DHT20 file to the Raspberry Pi file directory, then run the following command line to use this sensor:
+
+## Methods
+```python
+  '''
+    @brief init function
+    @return Return 0 if initialization succeeds, otherwise return non-zero and error code.
+   '''
+  def begin(self ):
+
+  '''
+    @brief Get ambient temperature, unit: °C
+    @return ambient temperature, its measurement range is (-40°C ~ 80°C)
+  '''
+  def get_temperature(self):
+     
+  '''
+    @brief Get relative humidity, unit: %RH. 
+    @return relative humidity, its measurement range is (1-100%)
+  '''
+  def get_humidity(self):
+```
+
+## Compatibility
+
+MCU                | Work Well    | Work Wrong   | Untested    | Remarks
+------------------ | :----------: | :----------: | :---------: | -----
+Raspberry Pi              |      √         |            |             | 
+
+
+## History
+
+- Date 2021-7-2
+- Version V0.1
+
+
+## Credits
+
+Written by fengli(li.feng@dfrobot.com), 2021.7.2 (Welcome to our [website](https://www.dfrobot.com/))
+
+
+
+
+