rwaldron

Compiling v8 and Hello, World Example on Mac OSX Mavericks (10.9.4)

by Keith Rosenberg (netpoetica)

Note: do this in some sort of project/ directory that makes sense. depot_tools are going to need to be in your path, so you may want to install them somewhere you are comfortable with.

1) Get the v8 source

git clone https://github.com/v8/v8.git

2) Install depot tools

rwaldron

/*
  var Trait1 = {
    method1() {}
  };
  
  var Trait2 = {
    method2() {}
  };
  
  var Trait3 = mixin({

rwaldron

// Require modules
var Firebase = require("firebase");
var five = require("johnny-five");

// Create a new instance of Firebase db
var firebaseRef = new Firebase(
  // Fictional URL: replace this with your own from firebase 
  "https://burning-limbo-666.firebaseio.com/colors"
);

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var five = require('../lib/johnny-five.js'),
    board, button;

board = new five.Board();

board.on("ready", function() {
  this.firmata.sendI2CConfig();
  
  var LSM303_CTRL_REG1_A = 0x20
    , LSM303_CTRL_REG2_A = 0x21

rwaldron

#include <Process.h>

void setup() {
  Bridge.begin();
  Serial.begin(9600);
  while (!Serial)
    ;

  Serial.println("Invoking patch script on Yun.");

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var serialport = require('node-serialport')

var sp = new serialport.SerialPort("/dev/ttyO3", { 
  parser: serialport.parsers.raw,
  baud: 9600
})

sp.on('data', function(chunk) {
  console.log(chunk.toString('hex'), chunk.toString(), chunk)
})

rwaldron

/* MAX7219 Interaction Code
 * ---------------------------
 * For more information see
 * http://www.adnbr.co.uk/articles/max7219-and-7-segment-displays
 *
 * 668 bytes - ATmega168 - 16MHz
 */

// 16MHz clock
#define F_CPU 16000000UL

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var five = require("johnny-five");
var Spark = require("spark-io");
var keypress = require("keypress");
 
var board = new five.Board({
  io: new Spark({
    token: "{YOURS}",
    deviceId: "{YOURS}"
  })
});

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var $ = require('NodObjC');

$.import('Cocoa');

var installNSBundleHook = function() {
  var cls = $.NSBundle;

  if (cls) {
    var bundleIdentifier = cls.getInstanceMethod('bundleIdentifier');
    bundleIdentifier.setImplementation(function(val) {

rwaldron

Description

This simple script will take a picture of a whiteboard and use parts of the ImageMagick library with sane defaults to clean it up tremendously.

The script is here:

#!/bin/bash
convert "$1" -morphology Convolve DoG:15,100,0 -negate -normalize -blur 0x1 -channel RBG -level 60%,91%,0.1 "$2"

Results