def listens_for(mapper, connection, target, event_type):
topic = f'{mapper.local_table}'
payload = f'{event_type[0]} {target.id}'
app.logger.debug(f'publish {topic}, {payload}')
MQTTClient.publish(topic, payload=payload) #, qos=1, retain=False)
MQTTClient.publish_payloads()
def run():
global state
global connection
while True:
# Wait for connection
while state != CONNECTED:
try:
state = CONNECTING
connection = MQTTClient(DEVICE_ID, server=HOST, port=8883)
connection.connect(ssl=True,
certfile='/flash/cert/certificate.crt',
keyfile='/flash/cert/privateKey.key',
ca_certs='/flash/cert/root-CA.cer')
state = CONNECTED
except:
print('Error connecting to the server')
time.sleep(0.5)
continue
print('Connected!')
# Subscribe for messages
connection.set_callback(_recv_msg_callback)
connection.subscribe(TOPIC_DOWNLOAD)
while state == CONNECTED:
connection.check_msg()
msg = '{"Name":"Pycom", "Data":"Test"}'
print('Sending: ' + msg)
_send_msg(msg)
time.sleep(2.0)
def mp_connect():
global mp
print("connecting to mqtt broker ...")
BROKER = "iot.eclipse.org"
mqtt = MQTTClient(server=BROKER)
print("mqtt", mqtt)
mqtt.connect()
mp = PlotClient(mqtt)
print("mp", mp)
def init(self,
topics,
hostname,
port=1883,
qos=0,
client_id='calvinconstrained',
will=None,
auth=None,
tls=None,
transport='tcp',
payload_only=False,
**kwargs):
def sub_cb(topic, msg):
self.data.append({"topic": topic.decode('utf-8'), "payload": msg})
self.data = []
self.payload_only = payload_only
self.topics = topics
self.user = None
self.password = None
self.ssl = False
self.ssl_params = None
if auth:
user = auth.get("username")
password = auth.get("password")
if tls:
print("Using TLS")
self.ssl = True
key_file = open(tls.get("keyfile"), "r")
key = key_file.read()
cert_file = open(tls.get("certfile"), "r")
cert = cert_file.read()
self.ssl_params = {"key": key, "cert": cert}
self.c = MQTTClient(client_id,
hostname,
port=port,
user=self.user,
password=self.password,
ssl=self.ssl,
ssl_params=self.ssl_params)
self.c.set_callback(sub_cb)
self.c.connect()
for topic in self.topics:
self.c.subscribe(topic.encode("ascii"))
def adafruit_connection(self):
"""Make the AdaFruit connection."""
print("Connecting to Adafruit...")
self.mqtt = MQTTClient(self.adafruit_io_url,
port='1883',
user=self.adafruit_username,
password=self.adafruit_aio_key)
time.sleep(0.5)
print("AdaFruit connection made at:", self.adafruit_username)
from machine import Pin, ADC
from board import LED, A21, ADC0, ADC3
from mqttclient import MQTTClient
import gc, time, machine
led = Pin(LED, mode=Pin.OUT)
BROKER = "mac15.home"
BROKER = "dev.home"
BROKER = "iot.eclipse.org"
print("Connecting to broker", BROKER, "...")
mqtt = MQTTClient(BROKER)
print("Connected!")
def mqtt_callback(topic, msg):
global led, run
if topic == b'repl':
run = False
print("got run false")
mqtt.set_callback(mqtt_callback)
mqtt.subscribe("repl")
# Joystick
button = Pin(A21, mode=Pin.IN, pull=Pin.PULL_UP)
xout = ADC(Pin(ADC0))
yout = ADC(Pin(ADC3))
xout.atten(ADC.ATTN_6DB)
yout.atten(ADC.ATTN_6DB)
from network import WLAN, STA_IF
from util import Vector3, dist
MPU9250._chip_id = 115
BATCH_SIZE = 200
CALIBRATION_SIZE = 200
DATA_FREQUENCY = 60000 # Data collection frequency in ms
SEND_TIME = 5 # time in s to wait for a MQTT message to go out
BROKER = "mqtt.thingspeak.com"
TS_CHANNEL_ID = "472546"
TS_WRITE_KEY = "TQ6PXDYGOSXZV2XA"
OFFSETS = {}
SCALARS = set(["noise", "temp"])
print("Connecting to broker", BROKER, "...")
mqtt = MQTTClient(BROKER, user=None, password=None, ssl=True)
print("MQQTClient Connected!")
i2c = I2C(id=0, scl=Pin(SCL), sda=Pin(SDA), freq=100000)
imu = MPU9250(i2c)
def imu_collect():
return {
"accel": Vector3.from_imu_vector(imu.accel.xyz),
"gyro": Vector3.from_imu_vector(imu.gyro.xyz),
"mag": Vector3.from_imu_vector(imu.mag.xyz),
"temp": imu.temperature
}
import socket
import machine
import time
if __name__ == '__main__':
#WLAN
wlan = WLAN(mode=WLAN.STA)
wlan.connect("FD-51", auth=(WLAN.WPA2, "fromage2chevre"), timeout=5000)
while not wlan.isconnected():
machine.idle()
print("Connected to Wifi")
#MQTT
mqttServerAddr = "192.168.43.253"
client = MQTTClient("lopy", mqttServerAddr, port=1883)
client.connect()
print("Connected to MQTT at : {}".format(mqttServerAddr))
#LoRa
lora = LoRa(mode=LoRa.LORA, frequency=868100000)
s = socket.socket(socket.AF_LORA, socket.SOCK_RAW)
s.setsockopt(socket.SOL_LORA, socket.SO_DR, 5)
s.setblocking(True)
print("Listening to LoRaMAC")
while True:
print("waiting for data to send")
loraClientData = int(s.recv(256))
client.publish(topic="test/lopy", msg=str(loraClientData))
print("data sent : {}".format(loraClientData))
from drv8833 import DRV8833
from mqttclient import MQTTClient
import time, gc
from math import fabs
# robot controlled by joystick
# remote led control
led = Pin(LED, mode=Pin.OUT)
# mqtt
BROKER = "iot.eclipse.org"
BROKER = "mac15.home"
BROKER = "habiandev.local"
BROKER = "dev.home"
mqtt = MQTTClient(BROKER)
print("connected to broker at", BROKER)
run = True
x = y = 0
brake = False
def set_speed():
global motors, x, y, brake
if brake:
motors.brake(0)
motors.brake(1)
return
sp0 = x + y
sp1 = x - y
session = "rimuru"
BROKER = "iot.eclipse.org"
# check wifi connection
wlan = network.WLAN(network.STA_IF)
wlan.active(True)
ip = wlan.ifconfig()[0]
if ip == '0.0.0.0':
print("no wifi connection")
# code to handle the problem ...
else:
print("connected to WiFi at IP", ip)
# connect to MQTT broker
print("Connecting to MQTT broker", BROKER, "...", end="")
mqtt = MQTTClient(BROKER)
print("Connected!")
#for speed in speeds:
"""
for i in range(50):
cps_A, cps_B = hot_wheels(speed)
# add additional values as required by application
topic = "{}/data".format(session)
data = "{},{}".format(cps_A, cps_B)
print("send topic='{}' data='{}'".format(topic, data))
mqtt.publish(topic, data)
"""
t = 0
if c.isdigit():
num = num + c
direc = num[-1] #the last number will be the direction
num = num[0:-1] #the rest of the number will be the number of steps
print("direction" + direc)
print("number of steps" + num)
#drive the motor
#a1.drive(num, dir)
else:
print(0)
# Connect to Adafruit server
print("Connecting to Adafruit")
mqtt = MQTTClient(adafruitIoUrl,
port='1883',
user=adafruitUsername,
password=adafruitAioKey)
time.sleep(0.5)
print("Connected!")
# This will set the function sub_cb to be called when mqtt.check_msg() checks
# that there is a message pending
mqtt.set_callback(sub_cb)
# Send test message
feedName = "mzdesa/feeds/me100project"
testMessage = "Robot Connected!"
# testMessage = "1"
mqtt.publish(feedName, testMessage)
print("Published {} to {}.".format(testMessage, feedName))
np.set(0,R,0,0)
time.sleep(0.1)
np.set(0,0,0,0)
time.sleep(0.1)
sys.exit()
else:
print("connected to WiFi at IP", ip)
# Connect to MQTT broker
BROKER = "internetoflaundry.xyz"
topic = "data"
print("Connecting to MQTT broker", BROKER, "...", end="")
try:
mqtt = MQTTClient(BROKER)
except:
print("Could not connect to MQTT")
for _ in range(10):
np.set(0,Y,0,0)
time.sleep(0.1)
np.set(0,0,0,0)
time.sleep(0.1)
print("Connected!")
# Start running
while True:
min = 10000
max = 0
measurements = 3000
if wlan.isconnected():
break
#print("Waiting for Wifi connection...")
sleep(1)
#print('Wifi connected at', wlan.ifconfig()[0])
#MQTT
tSpeak = 'mqtt.thingspeak.com' #broker
channelID = '480665' #SIP Channel
writeKey = '7PZPPOGEBEHAPKH3'
topic = "channels/" + channelID + "/publish/" + writeKey
#print("Connecting to broker ", tSpeak, "...")
mqtt = MQTTClient(tSpeak)
#print("Connected!")
message = "field1={}&field2={}&field3={}&field4={}&field5={}".format(\
plant1, plant2, watered1, watered2, reservoir)
#print("Publish TOPIC = {}, MSG = {}".format(topic, message))
mqtt.publish(topic, message) #publish the message
#print("All done")
mqtt.disconnect() #close the socket
################################################################################
#Reset
deepsleep(2 * 60 * 60 * 1000) #to take measurements every 2 hours
if pid > 0:
# Save child PID to file and exit parent process
runfile = open("/var/run/mqtt-ciao.pid", "w")
runfile.write("%d" % pid)
runfile.close()
sys.exit(0)
except OSError, e:
logger.critical("Fork failed")
sys.exit(1)
mqtt_queue = Queue()
ciao_queue = Queue()
try:
mqttclient = MQTTClient(shd["conf"]["params"], ciao_queue)
except Exception, e:
logger.critical("Exception while creating MQTTClient: %s" % e)
sys.exit(1)
signal.signal(signal.SIGINT, signal.SIG_IGN) #ignore SIGINT(ctrl+c)
signal.signal(signal.SIGHUP, signal_handler)
signal.signal(signal.SIGTERM, signal_handler)
if mqttclient.connect():
logger.info("Connected to %s" % shd['conf']['params']['host'])
shd["requests"] = {}
ciaoclient = MQTTCiao(shd, mqtt_queue, ciao_queue)
ciaoclient.start()
# Encoders ...
rpm_a = RPM(A6)
rpm_b = RPM(A7)
rpm = rpm_a if MOTOR == "A" else rpm_b
# Motor power supply (Rigol DP832A)
print("Connect to DP832A power supply")
pwr = get_resource(RPC_RECEIVER, "pwr")
print("pwr", pwr)
pwr.config(1, v=0, i=0.4, ovp=8, ocp=1, enabled=True)
pwr.config(2, enabled=False)
pwr.config(3, enabled=False)
# setup remote plotter
print("connect to mqtt broker")
mqtt = MQTTClient("iot.eclipse.org")
plotter = MQTTPlotter(mqtt)
RPM_VOLTAGE = "rpm_voltage"
plotter.new_series(RPM_VOLTAGE, "Voltage [V]", "RPM", "Current [mA]")
# run test
print("run test ...")
for v in linrange(0.5, 6.5, 12):
gc.collect()
print("Test voltage = {:8.2f} V".format(v))
# set motor voltage
pwr.config(1, v=v)
# wait a little to make sure motor runs at constant speed
sleep(1)
# reset rpm counter
rpm.reset()
from mqttclient import MQTTClient
from time import sleep
import math
server = "io.adafruit.com"
# update with your values from AdafruitIO ...
aio_user = "******"
aio_key = "73609b18b6204c14aa793035fce4161d"
mqtt = MQTTClient(server=server, user=aio_user, password=aio_key, ssl=True)
for t in range(100):
s = math.sin(t/10)
mqtt.publish("{}/feeds/sms-feed".format(aio_user), str(s))
time.sleep(3)
from time import sleep
from machine import deepsleep
import math
from busio import I2C
from board import SDA, SCL
from adafruit_bme680 import Adafruit_BME680_I2C as BME680
i2c = I2C(scl=SCL, sda=SDA)
bme = BME680(i2c, address=0x76)
server = "io.adafruit.com"
# update with your values from AdafruitIO ...
aio_user = "******"
aio_key = "dd9efcf7eb024bad8d4bf6cd16962973"
mqtt = MQTTClient(server=server, user=aio_user, password=aio_key, ssl=True)
while True:
t = bme.temperature
g = bme.gas
h = bme.humidity
p = bme.pressure
a = bme.altitude
mqtt.publish("{}/feeds/temperature".format(aio_user), str(t))
mqtt.publish("{}/feeds/gas".format(aio_user), str(g))
mqtt.publish("{}/feeds/humidity".format(aio_user), str(h))
mqtt.publish("{}/feeds/pressure".format(aio_user), str(p))
mqtt.publish("{}/feeds/altitude".format(aio_user), str(a))
sleep(10)
deepsleep(30000)
def mqtt_benchmark(N, is_server, broker, user, pwd):
received = 0
def mqtt_callback(topic, msg):
nonlocal received
received += 1
print("Connecting to MQTT broker", broker, "...")
mqtt = MQTTClient(broker, user=user, password=pwd)
mqtt.set_callback(mqtt_callback)
mqtt.subscribe("iot49/{}".format(is_server))
topic = "iot49/{}".format(not is_server)
print("Starting test ...")
gc.collect()
try:
t_start = time.ticks_ms()
for i in range(N):
if is_server:
mqtt.publish(topic, "msg {}".format(i))
mqtt.wait_msg()
else:
mqtt.wait_msg()
mqtt.publish(topic, "ok {}".format(i))
t_stop = time.ticks_ms()
dt = time.ticks_diff(t_stop, t_start)
if N != received:
print("***** sent {} messages, received {}".format(N, received))
print(">>> MQTT throughput, broker {}: {:8.4f} msg/s (N={})".format(
broker, 1000 * received / dt, N))
finally:
mqtt.disconnect()
from plotclient import PlotClient
from mqttclient import MQTTClient
from math import sin, cos, exp, pi
mqtt = MQTTClient("iot.eclipse.org")
mp = PlotClient(mqtt, session="hopla")
#give series unique name
SERIES = "sinusoid"
#data column names
mp.new_series(SERIES, 'time', 'cos', 'sin', 'sin*cos')
#generate data
def f1(t):
return cos(2 * pi * t) * exp(-t)
def f2(t):
return sin(2 * pi * t) * exp(-t)
def f3(t):
return sin(2 * pi * t) * cos(2 * pi * t) * exp(-t)
for t in range(200):
t *= 0.025
#submit each datapoint to the plot server
mp.data(SERIES, t, f1(t), f2(t), f3(t))
from mqttclient import MQTTClient
from time import sleep
BROKER = 'iot.eclipse.org'
USER = None
PWD = None
mqtt = MQTTClient(BROKER, user = USER, password=PWD, ssl = TRUE)
i = 1
while True:
i += 1
topic = '/patrick/esp32/hi'
mqtt.publish(topic, 'Hello {}'.format(i))
from mqttclient import MQTTClient
import binascii, machine, time, gc
mqtt = MQTTClient("iot.eclipse.org")
def mqtt_callback(topic, msg):
print("callback:", topic, msg)
global run
if topic == b'stop':
run = False
else:
print("received unknown topic={:s}, msg='{:s}'".format(topic, msg))
mqtt.set_callback(mqtt_callback)
mqtt.subscribe("stop")
run = True
count = 0
while run:
mqtt.check_msg()
mqtt.publish("x", str(count))
count += 1
if count > 100: run = False
time.sleep(1)
print("mqtt demo: stop MQTT client and return to REPL")
mqtt.disconnect()
TS_CHANNEL_ID = '440884'
TS_WRITE_KEY = '7839Z0UZ5F1YQ5TB'
topic = "channels/" + TS_CHANNEL_ID + "/publish/" + TS_WRITE_KEY
############################# WIFI #######################################################
wlan = network.WLAN(network.STA_IF)
wlan.active(True)
ip = wlan.ifconfig()[0]
if ip == '0.0.0.0 ':
print("no wifi connection")
sys.exit()
else:
print("connected to WiFi at IP", ip)
print("Connecting to MQTT broker", BROKER, "...", end="")
mqtt = MQTTClient(BROKER, user="", password="", ssl=True)
print("connected!")
# turn on LED
led = Pin(LED, mode=Pin.OUT)
led(1)
print("awake")
############################# INA219 #######################################################
# initialize ina219
from ina219 import INA219
from board import SDA, SCL
# from ina219_app import INA
import time
import json
class Subscribe(base_calvinsys_object.BaseCalvinsysObject):
"""
Subscribe to data on given MQTT broker
"""
def init(self,
topics,
hostname,
port=1883,
qos=0,
client_id='calvinconstrained',
will=None,
auth=None,
tls=None,
transport='tcp',
payload_only=False,
**kwargs):
def sub_cb(topic, msg):
self.data.append({"topic": topic.decode('utf-8'), "payload": msg})
self.data = []
self.payload_only = payload_only
self.topics = topics
self.user = None
self.password = None
self.ssl = False
self.ssl_params = None
if auth:
user = auth.get("username")
password = auth.get("password")
if tls:
print("Using TLS")
self.ssl = True
key_file = open(tls.get("keyfile"), "r")
key = key_file.read()
cert_file = open(tls.get("certfile"), "r")
cert = cert_file.read()
self.ssl_params = {"key": key, "cert": cert}
self.c = MQTTClient(client_id,
hostname,
port=port,
user=self.user,
password=self.password,
ssl=self.ssl,
ssl_params=self.ssl_params)
self.c.set_callback(sub_cb)
self.c.connect()
for topic in self.topics:
self.c.subscribe(topic.encode("ascii"))
def can_write(self):
return True
def write(self, data=None):
pass
def can_read(self):
try:
data = self.c.check_msg()
except:
return False
return bool(self.data)
def read(self):
data = self.data.pop(0)
if self.payload_only:
return data.get("payload")
else:
return data
def close(self):
self.c.disconnect()
# e.g. your name & make corresponding change in mqtt_plot_host.py
session = "wigglesc"
BROKER = "iot.eclipse.org"
machine.reset()
# check wifi connection
wlan = network.WLAN(network.STA_IF)
wlan.active(True)
ip = wlan.ifconfig()[0]
if ip == '0.0.0.0':
print("no wifi connection")
sys.exit()
else:
print("connected to WiFi at IP", ip)
# connect to MQTT broker
print("Connecting to MQTT broker", BROKER, "...", end="")
mqtt = MQTTClient(BROKER) #system index out of range error
print("Connected!")
############################# Plot Client#######################################################
mp = PlotClient(mqtt, session)
SERIES = "data"
############################# DATA #######################################################
# initialize ina219
from ina219 import INA219
from machine import I2C, Pin
from board import SDA, SCL
# from ina219_app import INA
import time
import json
session = 'madesa/ESP32/helloworld'
BROKER = 'broker.mqttdashboard.com'
# check wifi connection
wlan = network.WLAN(network.STA_IF)
wlan.active(True)
ip = wlan.ifconfig()[0]
if ip == '0.0.0.0':
print("no wifi connection")
sys.exit()
else:
print("connected to WiFi at IP", ip)
# connect to MQTT broker
print("Connecting to MQTT broker", BROKER, "...", end="")
mqtt = MQTTClient(BROKER, port=1883)
print("Connected!")
# send data
# In this sample, we send "fake" data. Replace this code to send useful data,
# e.g. measurement results.
i2c = I2C(id=0, scl=Pin(SCL), sda=Pin(SDA), freq=100000)
print("scanning I2C bus ...")
print("I2C:", i2c.scan())
SHUNT_RESISTOR_OHMS = 0.1
ina = INA219(SHUNT_RESISTOR_OHMS, i2c)
ina.configure()
r = (v/i)*1000
else:
r = 0
return [v, i, p, r]
from mqttclient import MQTTClient
from time import sleep
from plotclient import PlotClient
from machine import deepsleep
#set up broker
TS_CHANNEL_ID = '436309'
TS_WRITE_KEY = 'HRHIBUDP4FBOK88A'
BROKER = 'mqtt.thingspeak.com'
USER = ''
PWD = ''
mqtt = MQTTClient(BROKER)
topic = "channels/" + TS_CHANNEL_ID + "/publish/" + TS_WRITE_KEY
values = VoltageRead()
v = values[0]
i = values[1]
sleep(0.3)
message = "field1={}&field2={}".format(v, i)
print("Publishing message {}, {}".format(v, i))
mqtt.publish(topic, message)
mqtt.disconnect()
from board import A10
from machine import Pin, PWM
import machine
return [v, i, p, r]
# Set up MQTT and plotclient for use on ESP32
from mqttclient import MQTTClient
from time import sleep
from plotclient import PlotClient
#set up broker
BROKER = 'iot.eclipse.org'
USER = ''
PWD = ''
# connect (from lecture slides)
print("Connecting to broker", BROKER, "...")
mqtt = MQTTClient(
BROKER,
user=USER,
password=PWD,
ssl=True,
)
mp = PlotClient(mqtt, session="BOSERBOIS_Plotter_2")
#name series
SERIES = 'power'
#publish series
mp.new_series(SERIES, 'R', 'P')
lastmessage = [1, 1, 1, 1]
while True:
message = VoltageRead()
if abs(
message[2] - lastmessage[2]
) > 0.1 * message[2]: # Just checking that the change is greater than 10%
mp.data(SERIES, message[3], message[2])
#### TO DO: Modify mqtt broker, get this publisher set up as a callback to a timer
#start telnet server for remote login
from network import telnet
print("start telnet server")
telnet.start(user='******', password='******')
#Set up pulissher node
from mqttclient import MQTTClient
from time import sleep
from machine import deepsleep
#set up broker
BROKER = 'iot.eclipse.org'
USER = ''
PWD = ''
mqtt = MQTTClient(BROKER)
topic =
sleep(0.3)
### TO DO: Set up the callback to record and actuate the servos at the same time,
#also possibly figure out phased arrays
### TO DO: Include this in the other callback
from machine import Timer
from board import A10, A12, A8, A6
from machine import Pin, PWM
import machine
import time
DUTY = 0
pin1 = Pin(A10, mode=Pin.OUT)
adafruitAioKey = 'aio_CHOe50GxVH1hRAGMCF4XbXjHK6KE'
# Define callback function
def sub_cb(topic, msg):
# print("Message type:", type(msg))
# int_msg = int(msg)
# print("Int Message type:", type(int_msg))
# print(int_msg)
print(msg)
# Connect to Adafruit server
print("Connecting to Adafruit")
mqtt = MQTTClient(adafruitIoUrl,
port='1883',
user=adafruitUsername,
password=adafruitAioKey)
time.sleep(0.5)
print("Connected!")
# This will set the function sub_cb to be called when mqtt.check_msg() checks
# that there is a message pending
mqtt.set_callback(sub_cb)
# Send test message
feedName = "kaileo/feeds/pckt-refill"
testMessage = "Hello Adafruit World"
# testMessage = "1"
mqtt.publish(feedName, testMessage)
print("Published {} to {}.".format(testMessage, feedName))
import random
#IOT ECLIPSE BROKER
#BROKER = "iot.eclipse.org"
#USER = None
#PWD = None
#HiveMQ Broker
BROKER = "broker.hivemq.com" #iot.eclipse.org
USER = None
PWD = None
print("Connecting to broker", BROKER, "...")
#sleep(2)
#CREATING the mqtt object and CONNECTING to the broker
mqtt = MQTTClient(BROKER, user=USER, password=PWD, ssl=False)
print("Connected!")
def mqtt_callback(topic, msg):
print("RECEIVE topic = {}, msg = {}".format(topic, msg))
mqtt.set_callback(mqtt_callback)
mqtt.subscribe("charles/esp32/hi")
#PUBLISH - SUBSCRIBE LOOP
for i in range(5):
#PUBLISHING a message
topic = "charles/esp32/hi"
from mqttclient import MQTTClient
import time
def mqtt_callback(topic, msg):
print("MQTT received topic={}, msg='{}'".format(topic, msg))
SERVER = "iot.eclipse.org"
mqtt = MQTTClient(SERVER)
mqtt.set_callback(mqtt_callback)
mqtt.subscribe("y")
# publish
for i in range(20):
mqtt.check_msg()
msg = "value=" + str(i)
topic = "x"
print("publish topic={} msg={}".format(topic, msg))
mqtt.publish(topic, msg)
time.sleep(1)
mqtt.disconnect()
def test_publishOne(self):
#connect
#publishone
#disconnect
#connect
#publishone
#...
#publishone
#disconnect
topic = "test_topic"
message = "test_message"
mqtt_client = MQTTClient()
mqtt_client.connect()
mqtt_client.publish_one(topic, message)
mqtt_client.publish_one(topic, message)
#raw_input("Wait for restart push server and return.")
mqtt_client.publish_one(topic, message)
mqtt_client.publish_one(topic, message)
mqtt_client.publish_one(topic, message)
mqtt_client.start_send()
mqtt_client.disconnect()
