Its an introductory slide that explains how we can use javascript in internet of things (IOT) space. It has an example of blinking an LED with Arduino UNO board. An npm module Johnny Five is, thats is used for this. It uses a protocol named Firmata.

1. JS in Arduino
using Johnny Five
Raj Bharath Kannan
rajbharath rbrajbharath1

2. What makes Internet of
Things(IoT)
Collection of objects that can
• send/receive data
• respond to the input
• learn on the go and build its intelligence

3. Why Javascript in IoT?
Wonderful Community
🏘
🚀Easy Onboard for existing devs
🏘Established Eco System
🚥Event Driven

4. Some popular boards for JS
Tessel
Espruino
Raspberry pi

5. Johnny Five
• JS library
• For boards that can not run os/node on its own and
understands Firmata protocol
• Need node for executing Johnny 5 script

6. Architecture
Firmata Firmata
J5

7. var five = require("johnny-five");
var board = new five.Board();
// The board's pins will not be accessible until
// the board has reported that it is ready
board.on("ready", function() {
console.log("Ready!");
var led = new five.Led(12);
led.blink(500);
this.on('exit', function(){
led.off();
});
});

8. Links
• https://github.com/rwaldron/johnny-five
• http://firmata.org/wiki/Main_Page
• https://github.com/firmata/protocol
• http://johnny-five.io/api/