發送短信 : Development of a graphical user interface for step detection program

  _  __   _    _                ___     __   __  
 | |/ // | || | ||   ____      / _ \\   \ \\/ // 
 | ' //  | || | ||  |    \\   | / \ ||   \   //  
 | . \\  | \\_/ ||  | [] ||   | \_/ ||   / . \\  
 |_|\_\\  \____//   |  __//    \___//   /_//\_\\ 
 `-` --`   `---`    |_|`-`     `---`    `-`  --` 
                    `-`