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Drew Firment

Published December 28, 2016 © MIT

The "I Miss You" IoT Button

With the click of a button, instantly send an "I miss you" message to a loved one.

BeginnerFull instructions provided1 hour5,347

Things used in this project

Hardware components

Amazon Web Services AWS IoT Button

Software apps and online services

Amazon Web Services AWS IoT

Amazon Web Services AWS Lambda

Amazon Web Services AWS SNS

Story

Click Once: Send a message from Mom.

Click Twice: Send a message from Dad.

Long Click: Send a message from a Sibling

Creating the "I Miss You" Button

Step 1: Setting up your Button

Download the AWS IoT Button Application from the App Store.

Open the application and select "Set up AWS IoT Button." It will ask you to log on to your AWS account.

Follow the instructions on the application for registering, configuring, and setting your button action.

Click "Agree & get started"

When setting button action, select "Send SMS (nodejs)." Enter the phone number you want to send messages to, and then hit "Set action."

This will set up your button to send SMS messages in your AWS Account.

Step 2: Modifying your Lambda function

Log on to your AWS Console, and make sure you are in the same region that you registered your button. Open up Lambda, and you should find a newly created lambda function named "iotbutton_" followed by your buttons DSN.

Open the function, and copy in paste the code shown below. Make sure to replace the constant "PHONE_NUMBER" with the phone number that you want to send messages to.

Now, modify "momMessages", "dadMessages", and "siblingMessages" with the a list of possible messages you want to send. Make sure to keep the same format.

Save your changes.

Step 3: Send your messages

Click your IoT button and send your messages!

Remember:

Click Once: A message from Mom.

Click Twice: A message from Dad.

Long Click (longer than 1.5 seconds): A message from a sibling!

"I Miss You" Lambda Function

'use strict';

const AWS = require('aws-sdk');

const SNS = new AWS.SNS({ apiVersion: '2010-03-31' });
const PHONE_NUMBER = '1-xxx-xxx-xxxx'; // change it to your phone number

exports.handler = (event, context, callback) => {
    
    const momMessages = ['Mom message one','Mom message two'];
    const dadMessages = ['Dad message one','Dad message two'];
    const siblingMessages = ['Sibling message one','Sibling message two'];
    
    console.log('Received event:', event);

    console.log(`Sending SMS to ${PHONE_NUMBER}`);
    
    //uses randomizer to select one of the predefined messages
    var singleClick = momMessages[Math.floor(Math.random()*momMessages.length)];
    var doubleClick = dadMessages[Math.floor(Math.random()*dadMessages.length)];
    var longClick = siblingMessages[Math.floor(Math.random()*siblingMessages.length)];
    var randomMessage = singleClick;
    
    if(event.clickType == "DOUBLE"){
        randomMessage = doubleClick;
    }
    if(event.clickType == "LONG"){
        randomMessage = longClick;
    }
    
    const params = {
        PhoneNumber: PHONE_NUMBER,
        Message: randomMessage,
    };
    // result will go to function callback
    SNS.publish(params, callback);
};

Credits

Winston Frick

0 projects • 3 followers

Student at the University of Virginia

Drew Firment

1 project • 3 followers

The "I Miss You" IoT Button