sensor_thingspeak.py

import time
from tentacle_pi.LM75 import LM75
import httplib, urllib
from time import localtime, strftime

lm = LM75(0x48,"/dev/i2c-1")

while(True):
        temperature = lm.temperature()
        print "temperature: %0.2f" % temperature

        temp_raw_file = open('/sys/class/i2c-dev/i2c-1/device/1-0060/iio:device0/in_temp_raw','r')
        temp_scale_file = open('/sys/class/i2c-dev/i2c-1/device/1-0060/iio:device0/in_temp_scale','r')
        p_temp = int(temp_raw_file.read())*float(temp_scale_file.read())
        print "temperature: %.2f" % p_temp
        pres_raw_file = open('/sys/class/i2c-dev/i2c-1/device/1-0060/iio:device0/in_pressure_raw','r')
        pres_scale_file = open('/sys/class/i2c-dev/i2c-1/device/1-0060/iio:device0/in_pressure_scale','r')
        pressure = int(pres_raw_file.read())*float(pres_scale_file.read())
        print "pressure: %.4f" % pressure

        params = urllib.urlencode({'field1': temperature, 'field2': pressure,'field3':p_temp,'key':'YOUR_KEY_HERE'})
        headers = {"Content-type": "application/x-www-form-urlencoded","Accept": "text/plain"}
        conn = httplib.HTTPConnection("api.thingspeak.com:80")

        try:
                conn.request("POST", "/update", params, headers)
                response = conn.getresponse()
                print strftime("%a, %d %b %Y %H:%M:%S", localtime())
                print response.status, response.reason
                data = response.read()
                conn.close()
        except:
                print "connection failed"

        time.sleep(20)