VB作上位机,通过跟51单片机通讯,控制家用电器电源的通断,VB for the host computer, through communications with the 51 single-chip microcomputer to control the power-off household appliances

双串口于单片机通讯，同时工作，led指示工作状态。-Dual serial ports in single-chip communication, at the same time work, led the work of the state of the instructions.

单片机通讯 和电脑通讯 单片机接受一个再向电脑发送一个-Single-Chip Communication and computer communications microcontroller to accept a further computers to send a