Things used in this project

Hardware components:
Amazon echo dot
Amazon Alexa Echo Dot
×1
Phpoc blue per 100x1000 euk22wtv9i
PHPoC Blue
×1
Grove board cpdgvu5jko
PHPoC Grove Expansion Board
This is optional to make the wire connection between PHPoC and Grove-Temprature sensor easier
×1
SeeedStudio Grove - Temperature&Humidity Sensor
×1
Software apps and online services:
Dp image kit 02
Amazon Alexa Alexa Skills Kit
Screen%20shot%202015 07 20%20at%206.10.26%20pm
Amazon Web Services AWS Lambda

Code

Lambda function (index.js)JavaScript
This code is fired when Alexa Service request. The code process the incoming data (intent), get command (on/off), send the commands to PHPoC via HTTP protocol, and the send response to Alexa Service. Note that you need to put IP address or domainame of your PHPoC board in this source code. In case you use the private IP address, you need to set port forwarding on your router or access point.
'use strict';

/**
 * This sample demonstrates a simple skill built with the Amazon Alexa Skills Kit.
 * The Intent Schema, Custom Slots, and Sample Utterances for this skill, as well as
 * testing instructions are located at http://amzn.to/1LzFrj6
 *
 * For additional samples, visit the Alexa Skills Kit Getting Started guide at
 * http://amzn.to/1LGWsLG
 */

var http = require('http');

// --------------- Helpers that build all of the responses -----------------------

function buildSpeechletResponse(title, output, repromptText, shouldEndSession) {
    return {
        outputSpeech: {
            type: 'PlainText',
            text: output,
        },
        card: {
            type: 'Simple',
            title: "SessionSpeechlet - " + title,
            content: "SessionSpeechlet - " + output,
        },
        reprompt: {
            outputSpeech: {
                type: 'PlainText',
                text: repromptText,
            },
        },
        shouldEndSession: shouldEndSession
    };
}

function buildResponse(sessionAttributes, speechletResponse) {
    return {
        version: '1.0',
        sessionAttributes,
        response: speechletResponse,
    };
}


// --------------- Functions that control the skill's behavior -----------------------

function getWelcomeResponse(callback) {
    // If we wanted to initialize the session to have some attributes we could add those here.
    const sessionAttributes = {};
    const cardTitle = 'Welcome';
    const speechOutput = "Welcome to P H P o C. How can I help you?"
    // If the user either does not reply to the welcome message or says something that is not
    // understood, they will be prompted again with this text.
    const repromptText = "How can I help you?";
    const shouldEndSession = false;

    callback(sessionAttributes,
        buildSpeechletResponse(cardTitle, speechOutput, repromptText, shouldEndSession));
}

function handleSessionEndRequest(callback) {
    const cardTitle = 'Session Ended';
    const speechOutput = 'Thank you for trying the Alexa Skills Kit sample. Have a nice day!';
    // Setting this to true ends the session and exits the skill.
    const shouldEndSession = true;

    callback({}, buildSpeechletResponse(cardTitle, speechOutput, null, shouldEndSession));
}

function createTemperatureAttributes(temperature) {
    return {
        temperature: temperature
    };
}

/**
 * Read temperature in the session and prepares the speech to reply to the user.
 */
function readTemperatureInSession(intent, session, callback) {
    const cardTitle = intent.name;
    let repromptText = '';
    let sessionAttributes = {};
    const shouldEndSession = true;
    let speechOutput = '';
	var body = '';

	//Update 
	var httpPromise = new Promise( function(resolve,reject){
		http.get({
			host: '112.171.138.94',
			path: '/temp_humi.php',
			port: '1470'
		}, function(response) {
			// Continuously update stream with data
			response.on('data', function(d) {
				body += d;
			});
			response.on('end', function() {
				// Data reception is done, do whatever with it!
				console.log(body);
				resolve('Done Sending');
			});
		});
	});
	httpPromise.then(
		function(data) {
			var info = JSON.parse(body);
			console.log('Function called succesfully:', data);
			sessionAttributes = createTemperatureAttributes(info.temperature);
			speechOutput = "Temperature is " + info.temperature + " degree Celsius. Humidity is " + info.humidity + " percent";
			repromptText = "Temperature is " + info.temperature + " degree Celsius. Humidity is " + info.humidity + " percent";
			console.log(speechOutput);
			callback(sessionAttributes,buildSpeechletResponse(cardTitle, speechOutput, repromptText, shouldEndSession));
		},
		function(err) {
			console.log('An error occurred:', err);
		}
	);
}

// --------------- Events -----------------------

/**
 * Called when the session starts.
 */
function onSessionStarted(sessionStartedRequest, session) {
    console.log("onSessionStarted requestId=${sessionStartedRequest.requestId}, sessionId=${session.sessionId}");
}

/**
 * Called when the user launches the skill without specifying what they want.
 */
function onLaunch(launchRequest, session, callback) {
    console.log("onLaunch requestId=${launchRequest.requestId}, sessionId=${session.sessionId}");

    // Dispatch to your skill's launch.
    getWelcomeResponse(callback);
}

/**
 * Called when the user specifies an intent for this skill.
 */
function onIntent(intentRequest, session, callback) {
    console.log("onIntent requestId=${intentRequest.requestId}, sessionId=${session.sessionId}");

    const intent = intentRequest.intent;
    const intentName = intentRequest.intent.name;

    // Dispatch to your skill's intent handlers
    if (intentName === 'TemperatureHumidity') {
        readTemperatureInSession(intent, session, callback);
    } else if (intentName === 'AMAZON.HelpIntent') {
        getWelcomeResponse(callback);
    } else if (intentName === 'AMAZON.StopIntent' || intentName === 'AMAZON.CancelIntent') {
        handleSessionEndRequest(callback);
    } else {
        throw new Error('Invalid intent');
    }
}

/**
 * Called when the user ends the session.
 * Is not called when the skill returns shouldEndSession=true.
 */
function onSessionEnded(sessionEndedRequest, session) {
    console.log("onSessionEnded requestId=${sessionEndedRequest.requestId}, sessionId=${session.sessionId}");
    // Add cleanup logic here
}


// --------------- Main handler -----------------------

// Route the incoming request based on type (LaunchRequest, IntentRequest,
// etc.) The JSON body of the request is provided in the event parameter.
exports.handler = (event, context) => {
    try {
        console.log("event.session.application.applicationId=${event.session.application.applicationId}");

        /**
         * Uncomment this if statement and populate with your skill's application ID to
         * prevent someone else from configuring a skill that sends requests to this function.
         */
        /*
        if (event.session.application.applicationId !== 'amzn1.echo-sdk-ams.app.[unique-value-here]') {
             context.fail("Invalid Application ID");
        }
        */

        if (event.session.new) {
            onSessionStarted({ requestId: event.request.requestId }, event.session);
        }

        if (event.request.type === 'LaunchRequest') {
            onLaunch(event.request,
                event.session,
                function callback(sessionAttributes, speechletResponse) {
					context.succeed(buildResponse(sessionAttributes, speechletResponse));
				});
        } else if (event.request.type === 'IntentRequest') {
            onIntent(event.request,
                event.session,
                function callback(sessionAttributes, speechletResponse) {
					context.succeed(buildResponse(sessionAttributes, speechletResponse));
				});
        } else if (event.request.type === 'SessionEndedRequest') {
            onSessionEnded(event.request, event.session);
            context.succeed();
        }
    } catch (e) {
        context.fail("Exception: " + e);
    }
};
PHPoC code (index.php)PHP
This source code is running on PHPoC to handle HTTP request from Lambda function. It will read temperature and humidity from sensor and send them to AWS Lambda function via HTTP response.
<?php
	include_once "/lib/vd_th02.php";
	
	i2c_TH02_setup(0);
	$temp = TH02_read_temperature();            
	$humi = TH02_read_humidity();
	echo '{"temperature":"' . "$temp" . '","humidity":"' . "$humi" . '"}';
?>

Credits

Replications

Did you replicate this project? Share it!

I made one

Love this project? Think it could be improved? Tell us what you think!

Give feedback

Comments

Similar projects you might like

Run Google Assistant on Your Amazon Echo
Intermediate
  • 499
  • 8

Full instructions

This is an implementation of the Google Assistant API wrapped as an Alexa skill.

UK Treasure Hunt
Intermediate
  • 65
  • 4

Full instructions

Find Precious Treasures from across the United Kingdom..!

Parliament Election Support from you Alexa
Intermediate
  • 71
  • 3

Full instructions

Democracy calls! Use this Alexa skill for who is running for the UK Parliament on the snap election for the 8th of June, as well as who won.

I'm Fine for the Workplace
Intermediate
  • 565
  • 5

Full instructions

A system to let someone ask for help at school or in the workplace without having to do it publicly.

I'm Fine for the Workplace

Team National Star and EDF Energy Hackathon

Christmas Gift Box
Intermediate
  • 3,598
  • 595

Full instructions

Christmas Gift Box plays music and sends an email when it is opened.

Drone Powered 360º Circular Smartphone Camera Rig
Intermediate
  • 3,644
  • 14

This Arduino & XBEE connected camera rig shoots flat 360º degree round video/footage using only one smartphone camera/recording device.

Add projectSign up / Login