rpi_a.py

import sys
import Adafruit_DHT

import requests
import time
headers = {'X-AIO-KEY':'b89e5148eebe4f7b9eb366de79deabba'}

sensor = Adafruit_DHT.DHT11
pin = 4  # GPIO4 (Raspberry Pi 3 pin 7)

while True:
    # Try to grab a sensor reading.  Use the read_retry method which will retry up
    # to 15 times to get a sensor reading (waiting 2 seconds between each retry).
    humidity, temperature = Adafruit_DHT.read_retry(sensor, pin)

    if humidity is not None and temperature is not None:
        print ("Temp=%.1f" % temperature)
        print ("Humidity=%.1f" % humidity)

        # use http post to upload sensor value
        res = requests.post('https://io.adafruit.com/api/v2/Leohom/feeds/sensor/data', {"value":temperature}, headers=headers)
        print(res.json())

    else:
        print('Failed to get reading. Try again!')
        sys.exit(1)

    time.sleep(5)