#!/usr/bin/env python

# -*- coding: utf-8 -*-

#important: before running this demo, make certain that you import the library

#'paho.mqtt.client' into python (https://pypi.python.org/pypi/paho-mqtt)

#also make certain that ATT_IOT is in the same directory as this script.

import RPi.GPIO as GPIO #provides pin support

import ATT_IOT as IOT #provide cloud support

from time import sleep #pause the app

#set up the ATT internet of things platform

IOT.DeviceId = "YourDeviceIdHere"

IOT.ClientId = "YourClientIdHere"

IOT.ClientKey = "YourClientKeyHere"

IOT.BrokerUserId = "put your username for the broker here"

SensorName = "Button" #name of the button

SensorPrev = False #previous value of the button

SensorPin = 13

SensorId = "1" #the id of the button, don't uses spaces. required for the att platform

ActuatorName = "Diode"

ActuatorPin = 8

ActuatorId = "2"

#setup GPIO using Board numbering

#alternative: GPIO.setmode(GPIO.BCM)

GPIO.setmode(GPIO.BOARD)

#set up the pins

GPIO.setup(SensorPin, GPIO.IN, pull_up_down=GPIO.PUD_UP) #, pull_up_down=GPIO.PUD_DOWN

GPIO.setup(ActuatorPin, GPIO.OUT)

#callback: handles values sent from the cloudapp to the device

def on_message(actuatorId, value):

print("unknown actuator: " + actuatorId)

IOT.on_message = on_message

#make certain that the device & it's features are defined in the cloudapp

IOT.connect()

IOT.addAsset(SensorId, SensorName, "Push button", False, "bool")

IOT.addAsset(ActuatorId, ActuatorName, "Light Emitting Diode", True, "bool")

IOT.subscribe() #starts the bi-directional communication

#main loop: run as long as the device is turned on

while True:

if GPIO.input(SensorPin) == 0: #for PUD_DOWN, == 1

if SensorPrev == False:

print(SensorName + " activated")

IOT.send("true", SensorId)

SensorPrev = True

elif SensorPrev == True:

print(SensorName + " deactivated")

IOT.send("false", SensorId)

SensorPrev = False

sleep(1)