一个简单的音乐原文件，有兴趣的朋友可以参考一下，并修改为自己喜欢的音乐

MCS-51单片机汇编程序-MCS-51 assembler

avr串口实验,并且带有硬件原理图，程序简单，适合新手！-avr serial experiments, as well as with the hardware schematic diagram, a simple, suitable for novice!

液晶显示模块手册中文详细说明，解决英文难懂的问题

超声波倒车雷达应用方案，配合硬件电路一起使用-Ultrasonic reversing radar applications, used in conjunction with the hardware circuit

12864串口液晶,包含两个文件:lcd.c与lcd.h. 调用 void printLCD(uint8 x,uint8 y,uint8 *fmt, ... ),即可将显示的字符串发送到液晶屏显示-12864 Serial LCD, contains two documents: lcd.c with lcd.h. call void printLCD (uint8 x, uint8 y, uint8* fmt, ...), can be shown in the string sent to the LCD screen display

本文件介绍了MSC51与AVR单片机的区别，同时，对它们的区别的使用代码进行了说明-This document presents the AVR microcontroller with MSC51 distinction, at the same time, the difference between their use of the code described

基于等精度测频原理，设计的等精度频率计，测试结果很精确，达到0.01HZ。-Such as the accuracy of frequency measurement based on the principle of design, such as precision frequency meter, test results are accurate to 0.01HZ.

基于51单片机都 自动太阳能跟踪系统 包含源码和电路图-51 MCU-based solar tracking system automatically includes source code and schematic

用51汇编语言设计的DTMF发生器程序 输出到PI的每次间隔是52个指令周期 主频：6M，6M/12=0.5M,每个指令周期：2uS 即每次输出到P1的时间间隔是122uS 指令周期数：52 + 9 = 61-51 assembly language using the design process DTMF generator output to the PI for each interval is 52 instruction cycle speeds : 6M, 6M/12 = for 0.5 per instruction cycle : 2uS that each output to the P1 time interval is 122uS instruction cycle : 52 9 = 61

利用NXP的新一代高集成度的芯片RC500完成Mifare系列卡的读写-The use of a new generation of highly integrated NXP" s Mifare chip RC500 Series completion card reader