用单片机蜂鸣器实现911报警声音，采用中断延迟实现输出频率的变换。...

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LED条屏显示程序,但是对初学者，尤其是苦于类似毕业设计的人应该有些帮助。 -Article LED screen display program, but for beginners, in particular, suffer from a similar design should be graduating from some help.

这个是完红外线PT2261的源码，绝对的好用，不要改动。是的中断做的阿-This is the End of the PT2261 infrared source, the absolute ease of use, do not change. To do is interrupt the Arab-Israeli

MSP430F149单片机控制122*32液晶C程序-MSP430F149 single-chip control 122* 32 LCD C procedures

电子秤程序，利用CS1180做AD采集数据，是一个在应用在实际产品上的完整工程程序。-scale pro

LCD1602液晶显示子程序,实现各行扫描-LCD1602 LCD subroutine, realize the line scan

基于单片机的嵌入式USB主机研究与实现，一篇好文章-Based on Single Chip Embedded USB Host Research and realize, a good article

51的C语言教程，对各位初学51的新人来说，是一本很好的指导教材。-51 C language classes, beginner to you and the 51 newcomers, it is a very good guidance materials.

12232液晶驱动和时间显示。矩阵键盘源代码-12,232 liquid crystal display driver and time. Matrix keyboard source code