485全双工通信源代码，包括485单数据通信、485多数据通信、485通信调试、485自动收发通信！-485 full-duplex communication source code, including 485 single data communications, data communications over 485, 485 debugging, 485 automatic send and receive communic

485双工通信，包括485单数据通信、485多数据通信、485通信调试、485自动收发通信-485 full-duplex communication, including 485 single data communication, over 485 data communications, 485 debugging, 485 automatically send and receive communications

因RS-485接口具有良好的抗噪声干扰性，长的传输距离和多站能力等上述优点就使其成为首选的串行接口。因为RS485接口组成的半双工网络，一般只需二根连线，所以RS485接口均采用屏蔽双绞线传输。RS485接口连接器采用DB-9的9芯插头座，与智能终端RS485接口采用DB-9（孔），与键盘连接的键盘接口RS485采用DB-9（针）。(RS-485 interface has the advantages of good noise im