NodeJS SocketCAN extension
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Latest commit 2f5cc70 May 12, 2017 @sebi2k1 committed on GitHub Merge pull request #32 from jpilet/master
Add an example that emulates candump -L


This is a NodeJS SocketCAN extension. SocketCAN is a socket-based implementation of the CANbus protocol for Linux system.

This extensions makes it possible to send and receive CAN messages (extended, remote transission) using simple Javascript functions.


Basic CAN example:

var can = require('socketcan');

var channel = can.createRawChannel("vcan0", true);

// Log any message
channel.addListener("onMessage", function(msg) { console.log(msg); } );

// Reply any message
channel.addListener("onMessage", channel.send, channel);


Working with message and signals:

var can = require('socketcan');
var fs = require('fs');

// Parse database
var network = can.parseNetworkDescription("samples/can_definition_sample.kcd");
var channel = can.createRawChannel("vcan0");
var db      = new can.DatabaseService(channel, network.buses["Motor"]);


// Register a listener to get any value changes
db.messages["CruiseControlStatus"].signals["SpeedKm"].onChange(function(s) {
   console.log("SpeedKm " + s.value);

// Update tank temperature

// Trigger sending this message


There are two options for installing node-can:

  1. Clone / download node-can from GitHub, then:
    $ npm i
    $ npm run configure
    $ npm run build
  1. Install via npm:
    $ npm install socketcan