单片机演奏乐曲的程序，可以演奏生日快乐和三套车。

89S51单片机上开发红外线遥控,开发环境KEIL C51,-89S51 developed single-chip infrared remote control, development environment KEIL C51,

Keil串口调试技巧（修订）与列子,虚拟串口的使用，-Keil serial debugging skills (Amendment) Liezi with, the use of virtual serial port,

uCOS-II的移植代码　for８０５１　里面详细介绍了移植代码的注释-uCOS-II code for8051 transplantation inside details of the code transplant Notes

利用51单片机演奏音乐。定时器控制歌曲的频率（音调），延时时间控制节拍，可以轻松更改为自己想要的歌曲-The use of 51 single-chip music. Timer control of song frequency (pitch), delay time to control the beat, you can easily change the songs you want

2300时钟芯片的读写函数。主要说明SD2300时钟的应用-2300 clock chip to read and write function. The main clock SD2300 Application Note

本设计提供了通过单片机来控制温度测量芯片18b20，进行测量温度-This design through the single-chip microcomputer to control the chip temperature measurements 18b20, measured temperature

时钟芯片ds1302 c51源程序-clock source decoder chip ds1302

keil C51 H－Test事例-H-Test case

DS18S20是一种典型的1-Wire总线接口温度传感器，由Dallas Semiconductor公司生产。DS18S20数字温度传感器提供了9位高精度的摄氏温度测量，同时具有非易失性、用户可编程上下触发门限的报警功能。由于其独特的1-Wire总线接口，使得其可以占用极少的I/O引脚资源，使用起来十分方便-DS18S20 is a typical 1-Wire bus interface, temperature sensor, manufactured by Dallas Semiconductor. DS18S20 digital temperature sensor provides high-precision 9 Celsius temperature measurement, both non-volatile, user-programmable upper and lower trigger threshold alarm. Because of its unique 1-Wire bus interface, making it can take up very little I/O pin resources, is very convenient to use

51单片机实验课程：流水灯程序 用汇编或者c语言均可-51 single-chip experimental curriculum: water with light procedures can be compiled or c language