Before to start, i'm actually a software developer, i've just got an Arduino a week ago, i decided to make a week-end project just to get to know more about it.
So, yeah ... i'm still a newbie 
If you got any remarks or suggestions, please let me know.
The Arduino Facebook Notifier is a tool that makes you intercat with Arduino and Facebook.
This repository contains the open source PHP that allows you to access Facebook from a PHP app and connect with your Arduino. Except as otherwise noted, the Arduino Facebook Notifier PHP is licensed under the Apache Licence, Version 2.0 (Apache License, Version 2.0).
Overview
Arduino Facebook Notifier allows you to get the basic information from your Facebook account.
In this first version, you can use your Arduino board to get notified of any new friend request, message or notification.
Demonstration video :
The tools that have been used on this project :
Arduino UNO R3 Board
PHP 5.3.13
Facebook PHP SDK (GitHub - facebookarchive/facebook-php-sdk: This SDK is deprecated. Find the new SDK here: https://github.com/facebook/facebook-php-sdk-v4)
TinkerProxy v2.0 (Google Code Archive - Long-term storage for Google Code Project Hosting.)
Source code + Complete installation and configuration guide :