ultra1

import sys
import time
import json
import random
import paho.mqtt.client as mqtt

host = 'v3tnh2.messaging.internetofthings.ibmcloud.com'
clientid='d:v3tnh2:sensor:ultrasonicSensor1'
username='use-token-auth'
password='NIa!F?Y_XM+sXgEqIK'
topic = 'iot-2/evt/distance/fmt/json'


client = mqtt.Client(clientid)
client.username_pw_set(username,password)
client.connect(host, 1883, 60)

while True:
        try:
            t = random.randint(55,120)
            client.publish(topic, json.dumps({'distance':t}))
            print ("Message Published")
            print((str(t) + "cm"))
            time.sleep(1)
        except IOError:
            print("Error")

client.loop()
client.disconnect()