發送短信 : Ground station and offboard control of a hexarotor unmanned aerial vehicle

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