此代碼是用於arduino與W5100模組的整合範例。功能是利用網頁進入到arduino控制器，用網頁控制IO port與讀取AD值。並且會自動更新網頁狀態。-This code is used for arduino and the W5100 module integration example. Feature is the use of Web access to the arduino controller, with web page and read the AD control IO port value. And automatically update the Web page states.