Pooja Baraskar
Published © LGPL

Let's make a smartwatch with AWS IoT

Intel Edison is small enough to use as a wearable, so why not we make a smart watch with Edison and powerful AWS IoT.

IntermediateFull instructions provided3,418
Let's make a smartwatch with AWS IoT

Things used in this project

Hardware components

Intel Edison
Intel Edison
×1
Grove starter kit plus for Intel Edison
Seeed Grove starter kit plus for Intel Edison
×1
Analog Accelerometer: ADXL335
Adafruit Analog Accelerometer: ADXL335
×1

Software apps and online services

AWS IoT
Amazon Web Services AWS IoT
AWS IAM
Amazon Web Services AWS IAM
AWS SNS
Amazon Web Services AWS SNS
SMS Messaging API
Twilio SMS Messaging API

Hand tools and fabrication machines

Intel XDK IoT Edison
FileZilla
Putty

Story

Read more

Code

ThingShadows AWS

JavaScript
/*

MRAA - Low Level Skeleton Library for Communication on GNU/Linux platforms
Library in C/C++ to interface with Galileo & other Intel platforms, in a structured and sane API with port nanmes/numbering that match boards & with bindings to javascript & python.

Steps for installing MRAA & UPM Library on Intel IoT Platform with IoTDevKit Linux* image
Using a ssh client: 
1. echo "src maa-upm http://iotdk.intel.com/repos/1.1/intelgalactic" > /etc/opkg/intel-iotdk.conf
2. opkg update
3. opkg upgrade

*/
var awsIot = require('aws-iot-device-sdk'); //require for aws iot 
var mraa = require('mraa'); //require mraa for analog/digital read/write
console.log('MRAA Version: ' + mraa.getVersion()); //write the mraa version to the console



/*
 * CONFIGURATION VARIABLES 
 * To set your AWS credentials, export them to your environment variables.
 * Run the following from the Edison command line:
 * export AWS_ACCESS_KEY_ID='AKID'
 * export AWS_SECRET_ACCESS_KEY='SECRET'
 */

// AWS IoT Variables
var mqttPort = 8883;
var rootPath = '/home/root/awscerts/';
var awsRootCACert = "root-CA.pem.crt";
var awsClientCert = "certificate.pem.crt";
var awsClientPrivateKey = "private.pem.key";
var topicName = "Edison";
var awsClientId = "Edison";
var awsIoTHostAddr = "https://AWVI662RQY269.iot.us-west-2.amazonaws.com";



/*
 * Instance AWS variables for use in the application for
 * AWS IoT Certificates for secure connection.
 */
var privateKeyPath = rootPath + awsClientPrivateKey;
var clientCertPath = rootPath + awsClientCert;
var rootCAPath = rootPath + awsRootCACert;



//aws.config.region = REGION;
//var privateKey = fs.readFileSync(awsClientPrivateKey);
//var clientCert = fs.readFileSync(awsClientCert);
//var rootCA = [fs.readFileSync(awsRootCACert)];
//var kinesis = new aws.Kinesis();



/*
*Initializing Device Communication for AWS IoT
*/



var myThingName = 'Edison';

var thingShadows = awsIot.thingShadow({
     keyPath: privateKeyPath,
    certPath: clientCertPath,
    caPath: rootCAPath,
  clientId: awsClientId,
    region: 'us-west-2'
});
console.log("AWS IoT Device object initialized");


mythingstate = {
  "state": {
    "reported": {
      "ip": "unknown"
    }
  }
}

var networkInterfaces = require( 'os' ).networkInterfaces( );
mythingstate["state"]["reported"]["ip"] = networkInterfaces['wlan0'][0]['address'];

var temperaturePin = new mraa.Aio(2); //setup access analog input Analog pin #2 (A2)

var temperatureValue = temperaturePin.read(); //read the value of the analog pin
console.log(temperatureValue); //write the value of the analog pin to the console


// calculate temperature
var tmpVoltage = ((temperatureValue*5.0)/1023.0); // convert analog value to voltage
var temperature = (5.26*Math.pow(tmpVoltage,3))-(27.34*Math.pow(tmpVoltage,2))+(68.87*tmpVoltage)-17.81;
console.log(temperature);


  thingShadows.on('connect', function() {
  console.log("Connected...");
  console.log("Registering...");
  thingShadows.register( myThingName );

  // An update right away causes a timeout error, so we wait about 2 seconds
  setTimeout( function() {
    console.log("Updating my IP address...");
    clientTokenIP = thingShadows.update(myThingName, mythingstate);
    console.log("Update:" + clientTokenIP);
  }, 2500 );


  // Code below just logs messages for info/debugging
  thingShadows.on('status',
    function(thingName, stat, clientToken, stateObject) {
       console.log('received '+stat+' on '+thingName+': '+
                   JSON.stringify(stateObject));
    });

  thingShadows.on('update',
      function(thingName, stateObject) {
         console.log('received update '+' on '+thingName+': '+
                     JSON.stringify(stateObject));
      });

  thingShadows.on('delta',
      function(thingName, stateObject) {
         console.log('received delta '+' on '+thingName+': '+
                     JSON.stringify(stateObject));
      });

  thingShadows.on('timeout',
      function(thingName, clientToken) {
         console.log('received timeout for '+ clientToken)
      });

  thingShadows
    .on('close', function() {
      console.log('close');
    });
  thingShadows
    .on('reconnect', function() {
      console.log('reconnect');
    });
  thingShadows
    .on('offline', function() {
      console.log('offline');
    });
  thingShadows
    .on('error', function(error) {
      console.log('error', error);
    });
	
  
  //Watch for temperature
if(temperature > 35 ){//SNS terget: arn:aws:sns:us-west-2:316723939866:TemperaturAlarm
   thingShadows.publish('arn:aws:sns:us-west-2:316723939866:TemperaturAlarm', 
                        'Your room temperature is greater than 35deg C');
   }


});

Code for Displaying Time and Temperature

JavaScript
var lcd = new jsUpmI2cLcd.Jhd1313m1(6, 0x3E, 0x62);

var groveSensor = require('jsupm_grove');

var today = setInterval(function ()
    {
    var d = new Date();
    var b= d.toTimeString();
    lcd.setColor(0, 255, 0);

// Go to the 2nd row, 6th character (0-indexed)

    lcd.setCursor(0,0);
    lcd.write(b);
     var celsius = temp.value();
        var fahrenheit = celsius * 9.0/5.0 + 32.0;
        var t = Math.round(fahrenheit);
        lcd.setCursor(1, 1);
        lcd.write(t+" *F");
       v.saveValue(t);
}, 1000);

Code for Sending SMS

JavaScript
var twilio = require('twilio');


// Create a new REST API client to make authenticated requests against the

// twilio back end

var TWILIO_ACCOUNT_SID = '' ;

var TWILIO_AUTH_TOKEN = '';

var OUTGOING_NUMBER = '';

var TWILIO_NUMBER = '';


var client = new twilio.RestClient(TWILIO_ACCOUNT_SID, TWILIO_AUTH_TOKEN);


// Pass in parameters to the REST API using an object literal notation. The

// REST client will handle authentication and response serialzation for you.

client.sms.messages.create({

    to:OUTGOING_NUMBER,

    from:TWILIO_NUMBER,

    body:'Hi, sending from my Edison SmartWatch'

}, function(error, message) {

    // The HTTP request to Twilio will run asynchronously. This callback

    // function will be called when a response is received from Twilio

    // The "error" variable will contain error information, if any.

    // If the request was successful, this value will be "falsy"

    if (!error) {

        // The second argument to the callback will contain the information

        // sent back by Twilio for the request. In this case, it is the

        // information about the text messsage you just sent:

        console.log('Success! The SID for this SMS message is:');

        console.log(message.sid);


        console.log('Message sent on:');

        console.log(message.dateCreated);

    } else {

        console.log('error: ' + error.message);

    }

});

 

Code for Accelerometer and Gyroscope

JavaScript
var accelrCompassSensor = require('jsupm_lsm303');

// Instantiate LSM303 compass on I2C

var myAccelrCompass = new accelrCompassSensor.LSM303(0);


var successFail, coords, outputStr, accel;

var myInterval = setInterval(function()

{

        // Load coordinates into LSM303 object

        successFail = myAccelrCompass.getCoordinates();

        // in XYZ order. The sensor returns XZY,

        // but the driver compensates and makes it XYZ

        coords = myAccelrCompass.getRawCoorData();


    // Print out the X, Y, and Z coordinate data using two different methods

        outputStr = "coor: rX " + coords.getitem(0)

                                      + " - rY " + coords.getitem(1)

                                      + " - rZ " + coords.getitem(2);

        console.log(outputStr);

        outputStr = "coor: gX " + myAccelrCompass.getCoorX()

                               + " - gY " + myAccelrCompass.getCoorY()

                               + " - gZ " + myAccelrCompass.getCoorZ();

        console.log(outputStr);


    // Get and print out the heading

        console.log("heading: " + myAccelrCompass.getHeading());


    // Get the acceleration

        myAccelrCompass.getAcceleration();

        accel = myAccelrCompass.getRawAccelData();

    // Print out the X, Y, and Z acceleration data using two different methods

        outputStr = "acc: rX " + accel.getitem(0)

                               + " - rY " + accel.getitem(1)

                               + " - Z " + accel.getitem(2);

        console.log(outputStr);

        outputStr = "acc: gX " + myAccelrCompass.getAccelX()

                               + " - gY " + myAccelrCompass.getAccelY()

                               + " - gZ " + myAccelrCompass.getAccelZ();

        console.log(outputStr);

        console.log(" ");

}, 1000);


// Print message when exiting

process.on('SIGINT', function()

{

        clearInterval(myInterval);

        myAccelrCompass = null;

        accelrCompassSensor.cleanUp();

        accelrCompassSensor = null;

        console.log("Exiting");

        process.exit(0);

});

Code for turning on the flashlight with button press

JavaScript
var groveSensor = require('jsupm_grove');

// Create the button object using GPIO pin 0

var button = new groveSensor.GroveButton(2);

// Read the input and print, waiting one second between readings


function readButtonValue() {
    console.log(button.name() + " value is " + button.value());
    var v=button.value();
    if(v==1){ led.on();}
    if(v==0){ led.off();}
}
setInterval(readButtonValue, 1000);

EdisonSmartWatchAWS

Credits

Pooja Baraskar

Pooja Baraskar

25 projects • 159 followers
Intel Software Innovator and developer at Geek Monkey Studios. She is a Microsoft Certified Professional and C# specialist.

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