51系列单片机读卡程序，本人亲测，适合考勤、门禁。

本例采用89C52, 晶振为11.0592MHZ，关于如何编制音乐代码, 其实十分简单,各位可以看以下代码.频率常数即音乐术语中的音调,而节拍常数即音乐术语中的多少拍 所以拿出谱子, 试探编吧!-Example use of the 89C52, crystal for 11.0592MHZ, on how to prepare music code, is actually very simple, you can see the following code. Frequency that is constant in terms of tonal music, and the constant beat of music terminology that is how much of the shoot so come up with music score , test made it!

AVR m16的开发板，本人制作。有Protel99的原理图和PCB图。可根据个人需要修改。-AVR m16 development board, I produced. There Protel99 the schematic diagram and PCB Fig. Can be based on individual needs to be revised.

一种能产生宽调节占空比的PWM芯片，适合做逆变电源。-Can generate a duty cycle of the PWM chip width adjustment, suitable for power inverters.

定时器0溢出中断实验，基于AVR 单片机的实验程序-Timer 0 overflow interrupt the experiment, based on the AVR MCU Experimental procedures

这是热电阻测温的程序，可以测量工业环境周围的温度-This is the thermal resistance measurement procedure, can measure the temperature of the surrounding industrial environment

Msp430的flash读写文件配置文件，(msp430f427芯片)-MSP430

夏普lq080v3dg01液晶控制板程序！已调试通过-Sharp LCD panels lq080v3dg01 program! Have been debugging through the

MSP430单片机C语言应用程序设计实例精讲(2)-MSP430 Singlechip C language application design example精讲(2)

基于51单片机实现的M序列发生器（伪随机序列），在Keil编程环境下的源码-Based on 51 single-chip realization of M sequence generator (pseudo-random sequence), in Keil of-source programming environment

pic单片机原理，对于想学习PIC型单片机的同仁是很好的教材，PIC单片机是用途最广这单晶片之一，本教程以PIC16开头的8位单片机为例详细阐述其原理的。-pic microcontroller principle, want to learn PIC microcontroller-based colleagues is a very good teaching, PIC is the most extensive use of this single-chip, the Guide to PIC16 beginning of the 8-bit microcontroller for example detail its principles.