Johnny-Five is the original JavaScript Robotics programming framework. Released by Bocoup in 2012, Johnny-Five is maintained by a community of passionate software developers and hardware engineers. Over 75 developers have made contributions towards building a robust, extensible and composable ecosystem.

This tutorial will tell you how to use Johnny-Five JavaScript programming framework to control GPIO on pcDuino3/pcDuino8 Uno.

Prerequisites

Hardware

• pcDuino3/3B or pcDuino8 Uno

Steps

1. Install a compatible version of node/npm

wget http://nodejs.org/dist/v0.10.24/node-v0.10.24-linux-arm-pi.tar.gz
tar xvzf node-v0.10.24-linux-arm-pi.tar.gz
<span class="pl-c1">cd</span> node-v0.10.24-linux-arm-pi
sudo cp -R <span class="pl-k">*</span> /usr/local

2. Install Johnny-five and pcDuino-IO

Create a directory for your project, cd into the directory and run the following:

npm init # follow the prompts
npm config set strict-ssl false
npm install johnny-five pcduino-io --save

3. “Blink” with Johnny-Five

Create a new JavaScript file.

vim blink.js
<strong>Source code is :</strong>

var five = require("johnny-five");
var pcDuino = require("pcduino-io");
var board = new five.Board({
  io: new pcDuino()
});

board.on("ready", function() {
  var led = new five.Led(13);
  led.blink();
});

4. Run

node blink.js

Take pcDuino8 Uno as example, please check the LED1, is it blinking?

More information

• Johnny-Five’s API
• Johnny-Five’s examples
• Johnny-Five’s Github repository
• Platform Support