Broken Buttons

What's going on here?

• Problem: People don't email broken@lvl1.org every time something breaks.
• Why?: My guess, no quick access to email/computer to email the group.
• Solution: Deploy a number of Amazon Dash Buttons around equipment. If something breaks or we're out of stock of something, instruct patrons to press the corresponding button.

Setup

As of January 11, 2016:

Hardware

• Raspberry Pi B+
• 4GB+ SD Card
• Dash Button
• Monitor & Keyboard

Steps

• Step 1: Download Raspbian Jessie Lite
  • https://www.raspberrypi.org/downloads/raspbian/
• Step 2: Install image to SD card using Win32DiskImager
• Step 3: Insert SD card to Raspberry Pi, connect monitor & keyboard, boot Raspberry Pi
• Step 4: Configure wifi
  • https://www.raspberrypi.org/documentation/configuration/wireless/wireless-cli.md
  • Save wifi settings to wpa_supplicant.conf
  • Restart wlan0 using ifdown and ifup to obtain IP address
• Step 5: Update & Upgrade

  • sudo apt-get update

  • sudo apt-get upgrade

• Step 6: Install Node 4.0.0
  • http://blog.wia.io/installing-node-js-v4-0-0-on-a-raspberry-pi/
• Step 7: Install git and libpcap-dev

  • sudo apt-get install git libpcap-dev

• Step 8: Create directory ~/dash and cd there

  • mkdir ~/dash

  • cd ~/dash

• Step 9: Install nodemailer (version 0.7.1, 1.0.0 (default) is broken at time of writing)

  • npm install nodemailer@0.7.1

• Step 10: Install dash button library
  • https://github.com/hortinstein/node-dash-button
• Step 11: Run node-dash-button's findbutton app

  • cd ~/dash/node_modules/node-dash-button

  • sudo node bin/findbutton

• Step 12: Configure Amazon Dash Button
  • Follow the instructions given to you in the box BUT STOP BEFORE YOU SELECT A PRODUCT TO ORDER (hit the back button on your phone, exit the app, etc)
• Step 13: Press the Amazon Dash button once, watch raspberry pi terminal for the button's MAC address
• Step 14: Create application

  • nano dash.js

  • Enter this code:

var dashbutton = require('node-dash-button');
var nodemailer = require('nodemailer');

var smtpTransport = nodemailer.createTransport("SMTP",{
   service: "Gmail",
   auth: {
       user: "your@gmail.com",
       pass: "yourpassword"
   }
});

var dashTest = dashbutton("a0:02:dc:d2:f5:67");
dashTest.on("detected", function(){
        console.log("Found button");
        smtpTransport.sendMail({
                from: "your@gmail.com", // sender address
                to: "some_other@email.com", // comma separated list of receivers
                subject: "Something is Broken! - This is a test.", // Subject line
                text: "Something is broken!"
        }, function(error, response){
                if(error){
                        console.log(error);
                }else{
                        console.log("Message sent: " + response.message);
                }
        });
});

Step 15: Run application

• • sudo node dash.js