Frequency measurement procedures, are all products in use, high

点阵数码的驱动 例子显示“欢迎光临” 左右和上下交替显示-Examples of the digital dot-matrix driven displays " Welcome to" turn around and up and down display

全面介绍了高质量PCB设计技巧，共为8章。-A comprehensive introduction to high-quality PCB design techniques, a total of 8 chapters.

头件的中的#ifndef，这是一个很关键的东西。比如你有两个C文件，这两个C文件都include了同一个头文件。而编译时，这两个C文件要一同编译成一个可运行文件，于是问题来了-The first pieces of# Ifndef, this is a very key things. For example, you have two C file, the two C files include the same file size. And compile-time, the two C files to compile together into a run file, then issue the

dijkstra算法源代码，实现了dijkstra算法，并附有一个简单路网文件-dijkstra algorithm source code, to achieve the dijkstra algorithm, together with a simple network file

12位LED的万年历.有源程序和HEX,还有原理图电子时钟日历LED程序-12 LED

mifare 读卡器weigant输出有kei uvision打开！-MIFARE reader weigant output is Kei uvision open!

E2PROM芯片24C02的读写程序，供参考-E2PROM chip 24C02 reading and writing procedures for reference

一个单片机系统的驱动程序，附带了单片机系统的原理图。适合于硬件初学者的汇编编程学习。-an SCM system of the driver, accompanied by the SCM system diagram. Suitable for beginners hardware compilation of learning programming.

nRF2401芯片资料手册，便于开发无线模块-nRF2401 chip information handbook to facilitate the development of wireless module