AT2051单片机用的6路开关量程序，带有485通讯接口，可与上位机进行通讯，以判定各开关的状态，用于工程的自动控制中。需要上位机程序的可联系作者。-AT2051 single-chip 6-channel switch with the volume of procedures, with 485 communication interface, can communicate with the host computer to determine the status of the switch for automatic control of the project. PC procedure needs may contact the author.