gdg dev fest - hyderabad - using chrome serial api with arduino

2013.10.05 GDG Hyderabad DevFest

Using Chrome Serial API with Arduino

(Integrating Chrome with Embedded Systems)

2

Syed Anwaarullah

Agenda

• Introduction

• Demo

• Implementation

• Q&A

3

My two cents…

4

How many side does a coin have?

Software Hardware+ = ∞

What is…IoT?

5

•The Internet of Things is a computing concept where everyday physical objects will be connected to the Internet

•They will also be able to identify themselves to other devices

• IoT describes a world where just about everything can be connected and communicate in an intelligent fashion

What is…

No. Slide

IoT…

No. Slide

Where does Chrome Stop?

7

Chrome Browser is…

• _______________

• _______________

• _______________

Is that all? Should we stop here?

FastestSecureMost popular

Chrome Extensions“Small Software programs that can modify and enhance the functionality of the Chrome browser”http://developer.chrome.com/extensions/index.html

• Little or No User Interface

• Essentially web pages and can use all APIs provided by browser to web pages

• User downloads and installs them

• chrome.* APIs

• Extension has:A manifest file, one or more HTML and JS files

8

Chrome Packaged Apps

9

“Packaged Apps deliver an experience as capable as a native app. http://developer.chrome.com/apps/about_apps.html

• Written in HTML5, JavaScript, CSS

• Looks and behaves like a standalone web app outside the browser

• Have access to Chrome APIs and services not available to web traditional web apps like interaction with Network and Hardware devices, media tools etc

• chrome.serial API, chrome.bluetooth, chrome.usb

What is Arduino?

10

“Open-source electronic prototyping platform allowing to create interactive electronic objects

• USB-Serial Interface for communicating with PC (uploading code as well)

• Arduino code based on C/C++• Thousands of libraries available

Lets build an IOT device using Chrome Serial API and Arduino

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The UML aka Circuit Diagram

Demo…

12

Demo

chrome.serial API

13

Use this API to read from and write to a device connected to a serial port

chrome.serial API methods

• getPorts• open• read• write• close

Dissecting the Chrome App

14

Tells Chrome about the app, what it is, how to launch and permissions required

Create the event page responsible for managing app cycle

Contains UI elements; sliders, labels etc

Contains action listeners for the UI elements. Sends Serial data to Arduino using API

How to launch this app in Chrome…

Dissecting the Arduino Code

15

setup() Initialization

loop() Super loop, no exit

Serial Serial Communication Library

Q&A

16

17

“Using Chrome Serial API with Arduino”

Thank you!

Source Code:

Syed AnwaarullahBlog: http://anwaarullah.com

Email: syed@anwaarullah.comMobile: 0990-88-777-64

About Me:

• Java, GWT, MS CRM; 3+ yrs• Open Source H/W S/W

advocate• Electronics Engineer -

Education• Hardware – Software

Integrator• Android, LeapMotion,

Raspberry Pi, Robotics, AI, 3D Printing, Embedded Electronics, IoT etc…