该源码继承了大量功能控件，如定时器、按键、串口通讯等，并已成功嵌入到产品中，可以节省大量时间。-the source inherit a lot of control functions, such as timer, keys, serial communications, and has successfully embedded into products, can save a lot of time.

使用简单: 用 控件->Active=true 打开串口 控件->Read()读, 控件->Write()写. 可以处理控件的事件, 但不是必须的.-Easy to use: Using Controls-> Active = true open the serial port control-> Read () read, controls-> Write () to write. Can deal with the control case,

停车， 物业，刷卡，串口通信，用户控件，自动刷新-Parking, property, credit card, serial communications, user control