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HARDWARE HACKING WITH JAVASCRIPT

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ANDREW NESBITT

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ELECTRONICS, ROBOTICS AND INTERNET OF THINGS FOR WEB DEVELOPERS

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MY ROBOT STORY

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BEng Robotics & Automated Systems University of Plymouth

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Advanced Mathematics Mechanical Engineering Digital Electronics Analogue Electronics Computer Science Control Theory Neural Networking Microprocessor Design Playing with Robots LEARNING ROBOTICS

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Advanced Mathematics Advanced Mathematics Advanced Mathematics Advanced Mathematics Advanced Mathematics Advanced Mathematics Advanced Mathematics Advanced Mathematics Observing Robots behind glass LEARNING ROBOTICS

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Hardware was expensive, complicated and not fun

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APIs Open Source Hardware Smart phones Dynamic Programming Languages GitHub Mobile Internet 3D Printing 2014

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HARDWARE HACKING WITH JAVASCRIPT

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WHY JAVASCRIPT?

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Any application that can be written in JavaScript, will eventually be written in JavaScript

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HIGH LEVEL ASYNC COMMUNITY INTERNET OF THINGS LOW BARRIERS

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It's a UNIX system! I know this!

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LEGO

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EV3

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Demo Time

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ROBOT RABBIT FEEDER

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Node.js is a platform built on Chrome's JavaScript runtime for easily building fast, scalable network applications. Node.js uses an event-driven, non-blocking I/O model that makes it lightweight and efficient, perfect for data-intensive real-time applications that run across distributed devices.

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Server-side Javascript Asynchronous Runs on v8 from Chrome Perfect for network programs

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http://nodejs.org/download/ ! nodejs.org/download v0.10.32 $ node $ npm install ar-drone

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! var Ev3 = require ("ev3-nodejs-bt");
 var Ev3_base = Ev3.base;
 
 var XboxController = require('xbox-controller');
 var xbox = new XboxController;
 
 var robot = new Ev3_base("/dev/tty.EV3-SerialPort");
 
 var maxAngle = 32768;
 var maxSpeed = 100;
 
 var speeds = { a: 0, b: 0, c: 0, d: 0 };

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! robot.connect(function(){
 robot.start_program(function(ev3){
 var setSpeed = function(){
 var output = ev3.getOutputSequence(speeds.a,speeds.b,speeds.c,speeds.d);
 ev3.sp.write(output);
 }
 
 setInterval(setSpeed, 100)
 
 xbox.on('left:move', function(position){
 var x = -(position.x / maxAngle)*-maxSpeed
 var y = (position.y / maxAngle)*-maxSpeed
 
 var left = y-x
 var right = y+x
 
 speeds.b = left
 speeds.a = right
 })
 
 xbox.on('a:press', function(){
 speeds.d = 100
 })
 
 xbox.on('a:release', function(){
 speeds.d = 0
 })
 });
 });


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github.com/andrew/node-ev3-robot

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github.com/clebert/ev3

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ARDUINO

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FIRMATA

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Cat Laser Toy

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Cat Laser Toy Rabbit | v

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! var five = require("johnny-five"),
 board = new five.Board();
 
 function randomFromInterval(from,to){
 return Math.floor(Math.random()*(to-from+1)+from); 
 }
 
 board.on("ready", function() {
 var servoX = new five.Servo(10);
 var servoY = new five.Servo(9);
 var laser = new five.Led(8);
 
 laser.on()
 
 setInterval(function(){
 x = randomFromInterval(80, 120)
 y = randomFromInterval(95, 145)
 servoX.move(x)
 servoY.move(y)
 }, 400)
 }) 


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hobbytronics.co.uk/sparkfun-inventors-kit-v3 Sparkfun Inventors Kit

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node-ardx.org

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JAVASCRIPT MICROCONTROLLERS

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£70 £21 £30 £40 Lua based Tiny-js Node.js or browser Node.js Plug and play Hacker friendly Tiny computer All the ports

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NODECOPTER

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PROGRAMMATIC FLYING ROBOTS

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HD Camera Down-facing camera Gyroscope Wifi 1GHz CPU Linux Accelerometer Magnetometer Ultrasound

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GITHUB.COM/FELIXGE/NODE-AR-DRONE

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! var arDrone = require('ar-drone');
 var client = arDrone.createClient(); 
 
 client.takeoff();
 
 client
 .after(5000, function() {
 this.clockwise(0.5);
 })
 .after(3000, function() {
 this.animate('flipLeft', 15);
 })
 .after(1000, function() {
 this.stop();
 this.land();
 });

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shama.github.com/voxel-drone

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DEMO TIME

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WARNING

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QR CODER

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Dance Dance Drone

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github.com/eschnou/ardrone-webflight

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Quadcopters as a Service

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ROBOT LASER PONG

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WRAPPING UP

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STAY ON THE EDGE OF YOUR COMFORT ZONE

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BRING EVERYTHING GREAT ABOUT THE INTERNET TO THE REAL WORLD

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GO FORTH AND HACK

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No animals were harmed in the making of this presentation Thanks!

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github.com/andrew Thanks!

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Thanks! @teabass