该程序为51单片机做的频率计,可计频率可达999 HZ.

实用红外遥控接收，解码程序。已经通过调试。-Practical infrared remote control receiver, decoding procedures. Have passed testing.

工业仪表常用到4-20mA输出此程序通过C51单片机模拟输出PWM 提供了很好的思路和事例-Industrial instrumentation commonly used to 4-20mA output of this program through the C51 single-chip analog output PWM provides a good example of ideas and

DS1302的驱动程序,C版的,测试过,好用-DS1302 driver, C version, tested, easy to use

单片机资料C51源程序库（二十多个) 适合初学者-C51 single-chip data source library (over 20) suitable for beginners

基于51单片机的发声程序，初学者简单应用-51 MCU-based voice process, beginners a simple application

这是一个红外报警系统，该系统通过555调制红个发光管，发出38KHZ的红外信号，对面使用一个红外接收头接收信号用来检测是否有人通过，如果有，则声光报警，-This is an infrared alarm system, which modulator 555 through a red light-emitting tube, issued 38KHZ IR signal, opposite to the first use of an infrared receiver to receive signals to detect whether or not it was passed, if so, make a sound light alarm,

ADC0832程序,C51版的,己调试通-ADC0832 procedures, C51 version, debug others pass

keil下12864的显示测试程序，MCU是89C51，同时带有PROteus仿真工程，很好用-keil display under the 12864 test procedure, MCU is the 89C51, while simulation with PROteus works very well with

一个按件扫描程序，是用C语言写的，内含头文件和主程序-A piece scanning procedures, is written in C language, contains header files and the main program

1602显示我的姓名和电话的汇编程序.采用模拟口线方式驱动.-1602 show my name and phone assembler. I simulated line drive.