平台为KEIL+PROTEUS，PC与MCU交互，其中v2版本为直接，v3版本为RS485连接，"说明"中有测试指令-Platform for the KEIL+ PROTEUS, PC interact with the MCU, which is directly v2 version, v3 version of the RS485 connection, " Help" in the test instructions

C8051f单片机310显示数码管，数码管显示字符数字等等，采用max485通信-C8051f SCM 310 digital tube display, digital display character number, etc., using max485 communication