Arduino Controller

Control your Arduino, and review its state, through NodeJS. This also provides sockets so you can control your Arduino from a remote PC.

Install

npm i arduino-controller

Usage

This library may be used in two main ways:

1. A way of controlling and handling an Arduino, so you can read and write data from the pins using Node, instead of C.
2. A library to facilitate communications between a PC connected to an Arduino, and a remote web server.

Host side

This code would typically be run on a PC.

const express = require('express');
const app = express();
const http = require('http');
const server = http.createServer(app);
const io = require('socket.io').listen(server);

const arduino = require('arduino-controller');

server.listen(3000, function(){
  console.log('Express server listening...');
});

app.use('/', express.static('public'));

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

board.on("ready", function() {
  var arduino_state = new arduino({controller: five, socketio: io});

  io.on('connect', function (socket) {
    console.log('We are connected!');
    arduino_state.onConnectAsHost(socket);
  });
});

Client side

The above code would also provide a web server, providing the pages held in the public direction. This code provides a way connecting the two via sockets.

<div id="message"></div>

<script type="text/javascript" src="/socket.io/socket.io.js"></script>
<script type="text/javascript" src="js/arduino-controller.js"></script>

<script>
  var gVars = {};
  var socket = io();
  gVars.arduino = new arduino({board:'uno', socketio:socket});
  gVars.arduino.onConnectAsClient(socket);
  gVars.arduino.onStateChange(function(state) {
    document.getElementById('message').innerHTML = JSON.stringify(state);
  });
</script>

Examples

Arduino monitor

Miniature boilerplate