Well, now that all things are weld together, I’m investigating the programmation. At this time I want to build an app in Objective-C Cocoa for Mac. I’m totally new to it. I work hard to create an app that will act as a Web server that send the data received from an Internet connexion to the serial port of the Arduino. I found some base code that will probably help me doing it. I’ll let you know when I’ll succeed.