發送短信 : Path conditions monitoring for a power wheel chair

  ______    _____     ______    _____   __    __  
 /_____//  |  ___||  /_   _//  |  ___|| \ \\ / // 
 `____ `   | ||__      | ||    | ||__    \ \/ //  
 /___//    | ||__     _| ||    | ||__     \  //   
 `__ `     |_____||  /__//     |_____||    \//    
 /_//      `-----`   `--`      `-----`      `     
 `-`