6位数码管显示的频率计，外部方波接到P3.4（T0），测试通过

51单片机及其C语言程序开发实例第8章节-51 SCM and its C language programming examples of the first 8 chapters

P89C668单片机硬件I2C软件包,668i2c.asm（主方式）-P89C668 hardware I2C packages 668i2c.asm (the main form)

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-A simple music the original document, interested friends can look at and modify for their own favorite music

c语言方式的拼音输入法的实现，对于想用单片机输入中文非常有用。-c language pinyin input method to achieve very good.

这是关于DS18B20的读写程序,数据脚P2.2,晶振12MHZ 温度传感器18B20汇编程序,采用器件默认的12位转化,最大转化时间750微秒 显示温度00到99度,很准确哦~~无需校正!-DS18B20 on literacy, data P2.2 feet, 12MHZ crystal temperature sensor 18B20 assembler, using the default device into 12, the largest 750 microsecond conversion time show that the temperature from 00 to 99 degrees, very accurate ~ ~ Oh, no correction!

由C语言编写的模拟时钟,不需要时钟芯片即可准确显示-prepared by the C language simulation clock, clock chip can not accurately

空调控制器，主要根据采集信号控制空调的主机及辅助设备开关-air conditioning controllers, mainly based air conditioning control signal acquisition of mainframe and auxiliary equipment Switches

PM50语音芯片播放语音程序,采用串行方式,AVR单片机控制-PM50 voice chip-play voice procedures, using serial, AVR control

C51 LCD of meniumItC51 LCD of meniumIt

用单片机实现二进制数转换成十进制数（BCD码）程序-with MCU converted into binary-decimal (BCD) process