Arduino Blink With Node.js

Step 1 - Install Node.js

Installation Overview (Node.js)

Installing Node and NPM is pretty straightforward, using the installer package available from the Node.js® web site.

Installation Steps

• Download the Windows installer from the Nodes.js® web site.

• Run the installer (the .msi file you downloaded in the previous step).

• Follow the prompts in the installer (accept the license agreement, click the NEXT button a bunch of times, and accept the default installation settings).

Installation Overview (Jonny-Five)

• Open Command Prompt.

• Write the following command in CMD.

npm install johnny-five

• Wait for the installation.

Now, copy the code and save it into a .js file.

var five = require("johnny-five");  
var board = new five.Board();  
board.on("ready", function() {  
   console.log("Ready!");  
   var led = new five.Led(13);  
   led.blink(500);  
});  

Step 2 - Setup Hardware

Plug the Arduino and open the command prompt. First, you need to specify the folder.

node blink.js //your file name  

Type this and hit Enter. Done. Now you can see the blink of your Arduino LED using Node.js.