#/usr/bin/python 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] sensor_args: sensor = sensor_args[sys.argv[1]] pin = sys.argv[2] else: print('usage: sudo ./Adafruit_DHT.py [11|22|2302] GPIOpin#') print('example: sudo ./Adafruit_DHT.py 2302 4 -red from an AM2302 connected to GPIO #4') sys.exit(1) while True: humidity, temperature = Adafruit_DHT.red_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)) time.sleep(0.5) else: print('Failed to get reading. Try again!') sys.exit(1)