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4x4矩阵键盘数码管显示键值,按下4*4矩阵键盘，可以看到数码管的最后一位显示了对应按健的健值.-4x4 matrix keypad LED display keys, press 4* 4 matrix keyboard, you can see the last one shows the digital control of the health value of health should be.

单片机的数字时钟例程,定义运行状态,可以调整倒计时分,小时调整等.-SCM digital clock routines, the definition of operations, the countdown can be adjusted, such as the adjustment hour.

基于51最小系统的LCD显示程序,包括电路图,源程序-51 based on the smallest system LCD display program, including schematics, source code

Hardware_PCB_Interface，硬件pcb 接口-Hardware_PCB_Interface, hardware interface pcb

这是一个4*4键盘程序,已通过串口检测,效果还不错，给需要的朋友的一个参考。-This is a 4* 4 keyboard procedures have been detected through the serial port, the effect is also true that to a friend in need a reference.

4*4扫描键盘,通过键值通过4个数码管显示出来.-4* 4 Scanning keyboard, through key through four digital tube display.

keil C51 Bits1 事例-examples Bits1

十路无线智能器抢答器的程序源代码，功能基本都考虑到了，包括倒计时启动和暂停，终止，重启，倒计时设定-10 Lu wireless smart device Responder program source code, the basic functions are taken into account, including the countdown to start and be suspended, terminated, restart the countdown settings, and more

PCI总线多功能卡的设计,设计内容包括,4路DA输出,6路模拟输入(0-10V),-PCI bus multi-function card design, design elements include, 4-way DA output, 6-channel analog input (0-10V),

51单片机快速学习~~~很有用的哦-51 Single-chip Fast Learning ~ ~ ~ Oh, very useful