us.py

import RPi.GPIO as GPIO
import time
import requests
GPIO.setmode(GPIO.BOARD)
dweetIO = "https://dweet.io/dweet/for/"
myNameu = "dsusmartagriculture101us"
myKeyu = "us"
TRIG = 31
ECHO = 33
while True:
            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"
            
            liter = float(round(distance/60,2)) #Considering 1 liter for every 60 cms
                
            rqsString = dweetIO+myNameu+'?'+myKeyu+'='+str(distance)
            print(rqsString)
            rqs = requests.get(rqsString)


            #GPIO.cleanup()