你的led.thank电路。这是我自己的实践，希望你给我一个很大的帮助…

16进制转压缩型BCD码的C语言实现-16 hexadecimal to BCD code compression realize the C language

周立功公司开发的单片机手册，具体的数据手册见周立功网站下载。-Week Ligong Singlechip developed manual, the specific data manual see Zhou Ligong website.

袖珍型电子日历及8路长时间定时控制器程序-Mini electronic calendar and 8-way long timing controller program

用AVRmega8515编写的lcd1602显示程序，程序简单易懂，适合初学者-AVRmega8515 prepared by lcd1602 display program, the program easy-to-read, suitable for beginners

lcd 与C51 的驱动程序 1、本实验箱采用的液晶显示屏内置控制器为SED1520，点阵为122x32，由两片SED1520组成，由E1、E2分别选通，控制显示屏的左右两半屏。-LCD C51 and a driver, the use of experimental boxes LCD screen embedded controller for SED1520, to 122x32 dot matrix, composed of two SED1520, E1, E2 respectively strobe control screens around two semi-screen.

AT89C2051单片机设计开发的ML99V4型传呼机发码电路的功能、原理、编程及应用。-AT89C2051 ML99V4 design and development of the code pager type of circuit functions, principle, programming and applications.

单片机矩阵键盘扫描程序，已经做成了头文件，非常好用-MCU matrix keyboard scanning process, has made a header file, very easy to use

利用STC单片机实现软件模拟全双工串口的程序，只用一个定时器，消耗系统资源很少。-using SCM software simulation of the full-duplex serial procedures, only a timer, depletion of scarce resources system.

NRF401芯片的C51发送子程序-NRF401 chip C51 sent subroutine