code.py

import RPi.GPIO as GPIO
import time
import pydocumentdb.document_client as document_client



masterKey = 'YOUR_PRIMARY_KEY'
host = 'YOUR_END_POINT'

client = document_client.DocumentClient(host, {'masterKey': masterKey})
while True:
  GPIO.setmode(GPIO.BCM)
  TRIG = 23 
  ECHO = 24
  print "Distance Measurement In Progress"

  GPIO.setup(TRIG,GPIO.OUT)
  GPIO.setup(ECHO,GPIO.IN)

  GPIO.output(TRIG, False)
  print "Waiting For Sensor To Settle"
  time.sleep(2)

  GPIO.output(TRIG, True)
  time.sleep(0.00001)
  GPIO.output(TRIG, False)

  while GPIO.input(ECHO)==0:
    pulse_start = time.time()

  while GPIO.input(ECHO)==1:
    pulse_end = time.time()

  pulse_duration = pulse_end - pulse_start

  distance = pulse_duration * 17150

  distance = round(distance, 2)

  print "Distance:",distance,"cm"

  GPIO.cleanup()
  document_definition = {'id': '',
                         'reading' : distance}

  created_document =  client.UpsertDocument('dbs/SensorsReadings/colls/UltraSonicCollection',document_definition)
  time.sleep(2.0)