20 keys PS2 small keyboard interrupt service program

51单片机开发的双路冷气机自动切换报警控制器-51 MCU development of dual air-conditioning automatically switch alarm controller

C8051F120 ISP下载程序，通过串口可以更新程序，实现硬件的自动升级，更新程序大小为62KB-C8051F120 ISP download programs through the serial port can update procedure, automatic hardware upgrades, updates size is 62KB

用单片机蜂鸣器实现911报警声音，采用中断延迟实现输出频率的变换。-Used to achieve single-chip buzzer 911 sounds, using interrupt latency to achieve an output frequency of transformation.

LCD12864+51单片机 C语言例程 (此为在主程序，LCD相关函数声明 接口定义位于头文件中)-LCD12864+ 51 Singlechip C language routine (this is in the main program, LCD-related function declaration at the first interface definition file)

cs8900 c51应用-cs8900

dos 下计算51单片机波特率的小程序。用TC2.0编译。-dos calculated SCM baud rate of 51 small programs. WITH TC 2.0 compiler used.

单片机汇编语言编写的IC卡读写程序--IC card read/write program for SCM. It is written in assembly language.

单片机的程序，欢迎探讨-Microcomputer Program, welcomed the study

PIC16C5X/XX的烧写器制作 适用于JDM等不能烧写的5X芯片-PIC16C5X/XX burning for the production of JDM apply to the other burning 5X not chip

mega16,驱动开发板上的独立按键，按下不同的键，数码管显示0-3四个数字-MEGA16 KEY