Hardware Development for JavaScript Developers

Tarık Keleştemur"• github/tkelestemur!• twitter/tarikkelestemur!• kelestemur.com

About Me • Electronics Engineering Student at TOBB ETU #3 • Co-Founder at GMTLabs.com • Working on embedded sys. and robotics !

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more info : kelestemur.com

Agenda• A Brief History of Electronic Prototyping • It's all about C. How JS involved ? - Main Concept • JS Hardware Frameworks • Demonstration

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Hardware Prototyping• Texas Instruments • IBM • Atmel • Microchip !

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Electronic for Everyone : Arduino• 16MHz micro-controller • Easy programming with Wiring • Open Source! • Great for driving motors,

reading sensors BUILDING ROBOTS!

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Electronic for Everyone : Other!

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The Problem • Micro-controllers are running at low speeds. • They are not capable of handling high-level jobs

such as math, media processing

• They are programmed with C language. • C does not have awesome JavaScript libraries.

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The Solution• Using JavaScript as controller software of these hardwares.

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• Serial communication is made by a node package called serialport

• Special Firmware let you control your hardware over serial comminaciton with JavaScript. We don't write any C code :)

NODEJS + HW Framework

uController + Special Firmware

Serial Comm

Hardware Frameworks!

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Johnny-Five Cylon.JS

Johnny-Five• Compitable with almost every electronic board :

Beagle Bone, Intel Galileo,Pinoccio,Raspberry Pi, Spark Core, Arduino of course.

• Uses node-serialport package by Chris Williams

• Has a large community : NodeBots, NodeCopter, NodeRocket

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Johnny-Five• Accelerometer, Button, Compass, Led, Joystick,

Motor, (Ultrasonic) Ping, Proximity IR, Range IR, Sensor, Servo, Sonar

• http://jsfiddle.net/rwaldron/XMsGQ/show/light/

Johnny-Five Examplesvar five = require("johnny-five");

five.Board().on("ready", function() {

(new five.Led(13)).strobe(100);

});

• It says arduino to blink the led atteched to pin13 in every 100 ms over serial port.

var five = require("johnny-five"); five.Board().on("ready", function() { var claw, joystick; // Claw servo controller claw = new five.Servo(9); // Joystick controller joystick = new five.Joystick({ // x, y (vertical, horizontal) pins: [ "A0", "A1" ] }); ! // Center the claw servo to match the joystick deadzone. claw.center(); ! // When the joystick axis are moved... joystick.on("axismove", function() { // Open & close the claw by setting degrees according // to Y position value of joystick. claw.move( Math.ceil(180 * this.fixed.y) ); }); }); https://dl.dropboxusercontent.com/u/3531958/nodeconf/joystick-claw.mp4

Demos • Arduino : Blinking LED, Servo, Reading Sensor Data • Spark Core : Internet of Things Example !

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Thank You! Questions ?• Tarık Keleştemur • kelestemur.com • twitter/tarikkelestemur • github/tkelestemur • tkelestemur@gmail.com !

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