对利用595串行实现IO口扩展，本程序仅用3个IO口扩展到6个数码管...

max197采样程序,采用STC89C52RC单片机-MAX197 sampling procedures STC89C52RC Singlechip

基于51单片机的多功能数字钟。时间，年月日，多组闹钟，议程。且外接24C04的EEPROM后可保存设置。蜂鸣器由I/O口接三极管放大后驱动。-51 microcontroller-based multifunctional digital clock. Time, date, multiple alarm clocks, and the agenda. 24 C04 and external EEPROM kept after setting up. The buzzer sounded by the I/O access triode mouth amplified drive.

51单片机上的DS1302驱动，相关的LCD驱动可以在我发布的其它驱动中找到。-51 MCU on the DS1302 drive LCD driver can be related to the other drivers I have found.

315遥控，控制4路继电器开关,系统最多可控制16路继电器-315 remote control, control 4-way relay switch, the system can control up to 16 relays

鉴于MCS-51系统只提供“二级中断嵌套”，提出扩展51系统中断优先级的纯软件方法。其利用51系统内建的中断允许寄存器IE和中断优先级寄存器IP，通过屏蔽字机制来实现；以C51的形式，给出这种扩展方法的函数库实现，为该方法的使用赋予友好、简洁的用户接口。-Given MCS-51 systems only provide "two interrupt nesting," expanded 51 priority system interruption of pure software. The use of 51 built-in system allows interruption Register IE and priority interrupt register IP, through word shielding mechanisms to achieve; C51 in the form of this expansion is the way to achieve functions, methods for the use of empowerment friendly, simple user interface.

51的参考程序，针对初学者参考使用，了解51很有帮助-51, reference procedures, reference for beginners to use, very helpful to understand 51

单片机51系列测试串口的简单程序反回输入字符-MCU Series 51 serial test the simple procedure of the anti-back character input

直流电机的单片机控制，可以在proteus下进行仿真-DC Motor Control MCU

与单片机通信,实现多功能控制界面,内容详细,涉及多个方面-With the single-chip communication, the realization of multi-function control interface and detailed, involving many aspects

基于16c54的4位LED时钟显示程序-16c54 based on the four LED clock display program