dbus-send --session --reply-timeout=60000               --type=method_call --dest=org.manuel.BulletinBoard / org.manuel.BulletinBoard.Put string:"test" array:byte:2 array:byte:1
dbus-send --session --reply-timeout=60000 --print-reply --type=method_call --dest=org.manuel.BulletinBoard / org.manuel.BulletinBoard.Get string:"test" array:byte:2 

