客房管理系统，对客房的信息进行管理。有多少人入住，多少人退房，多少人订房。-Room management systems, information management room. How many people move in, how many people check out, how many people booking.

16乘以32LED点阵屏程序，有左移上移，左拉，右覆盖-16 multiplied by 32LED dot matrix screen procedures, there is left on the move, Zola, the right coverage