2.3 KiB
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.
产品链接（链接到英文商城）
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Table of Contents
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
'''
@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)