51单片机实现的4路设备工作时间计时器，有C51源码和Proteus仿真文件，还包括VB编写的上位机数据采集程序源码，通过串行口读取设备工作时间数据。-4-way MCS51 hours timer device, a C51 source and the Proteus simulation files, including VB, PC data acquisition program source code, read through the serial port device work

杰越科技上位机软件，使用VC编写，通过串口方式可控制32路舵机。-Jie Yue Technology PC software, use the VC compiled mode can be controlled through the serial port steering gear 32.

VB上位机程序控制DS1302时钟的proteus仿真-VB PC program control DS1302 clock proteus simulation