13-5-1

本程序基于单片机实现RTC实时时钟，简单易懂(The program is based MCU RTC real time clock, easy to understand)

说明：  单片机蜂鸣器 对初学单片机的你有很好的帮助(SCM SCM buzzer for beginners to help you have a good)

使用51单片机，用其内部定时中断，和外部中断只找一个可控脉宽调制信号PWM(Using 51, with its internal timer interrupt, and external interrupt only to find a controllable pulse width modulation signal PWM)

单片机通信，vb与18b20温度传感器通信资料，包括上位机和下位机程序(Single-chip communication, vb and 18b20 temperature sensor communication data, including upper and lower machine program)

Central Empire dedicated source

点阵液晶屏的参考程序，内置菜单动能，大家可以研究一下(Dot matrix LCD screen reference program, built-in menu kinetic energy, we can look)

针对RN8209新型电表计量芯片的校表软件，使用DLT645-2007通讯协议(RN8209 for new electricity metering chip calibration software, communications protocols using DLT645-2007)

利用51单片机做电阻测量仪，实现按键设置阻值自动报警提示(The use of 51 single-chip resistance measuring instrument to achieve automatic alarm button to set the resistance)

c8051f060单片机开发的基础代码，i/o口c语言测试程序，适合初学者。(c8051f060 microcontroller development code base)

本材料是Visual Basic 6.0 中文版程序员指南，有兴趣的可以下载看看(This material is the Chinese version of Visual Basic 6.0 Programmer' s Guide, are interested can download to see)