Siehe https://github.com/adrianlois/RaspberryPi-sensor-dht22-am2302-thingspeak am2302 Schließen Sie den Temperatur- und Feuchtigkeitssensor an den GPIO von Himbeer-Pi an.
pip install --upgrade pip setuptools wheel pip install Adafruit_DHT
** Adafruit_DHT unterstützt sowohl Python2 als auch Python3 **
python code
AdafruitDHT.py
import sys
import Adafruit_DHT
sensor_args = { '11': Adafruit_DHT.DHT11,
'22': Adafruit_DHT.DHT22,
'2302': Adafruit_DHT.AM2302 }
if len(sys.argv) == 3 and sys.argv[1] in sensor_args:
sensor = sensor_args[sys.argv[1]] #Sensorart
pin = sys.argv[2] #GPIO-PIN-Nummer
else:
print('Usage: sudo ./Adafruit_DHT.py [11|22|2302] <GPIO pin number>')
print('Example: sudo ./Adafruit_DHT.py 2302 4 - Read from an AM2302 connected to GPIO pin #4')
sys.exit(1)
humidity, temperature = Adafruit_DHT.read_retry(sensor, pin)
if humidity is not None and temperature is not None:
print('Temp={0:0.1f}* Humidity={1:0.1f}%'.format(temperature, humidity))
else:
print('Failed to get reading. Try again!')
sys.exit(1)
python AdafruitDHT.py 2302 4