old-tfm/controller/controller.py

#!/usr/bin/python
import sys
import requests
import Adafruit_DHT


GPIO_PIN = 4
TEMPERATURE_URL = 'http://tfm.meteor.com/api/temperatures'
SENSOR_TYPE = Adafruit_DHT.DHT11

if len(sys.argv) == 2:
    owner = sys.argv[1]
else:
    print 'usage: sudo ./conntroler.py [OWNER]#'
    print 'example: sudo ./controller.py Senad - Send temperature as Senad'
    sys.exit(1)

# 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_TYPE, GPIO_PIN)

# Un-comment the line below to convert the temperature to Fahrenheit.
# temperature = temperature * 9/5.0 + 32

# Note that sometimes you won't get a reading and
# the results will be null (because Linux can't
# guarantee the timing of calls to read the sensor).
# If this happens try again!
if temperature is not None:
    response = requests.post(TEMPERATURE_URL, json={"owner": owner, "value": temperature})
    print 'Temp={0:0.1f}*C'.format(temperature)
    if response.status_code != 200:
        print 'Failed to send temperature!'
        sys.exit(2)
else:
    print 'Failed to get reading. Try again!'
    sys.exit(1)