在C8051F930单片机上，利用端口匹配和PCA实现按键的长按、短按功能。...

单片机与微型打印机的接口，使用单片机控制微型打印机-Single-chip and micro-printer interface, the use of single-chip micro-control printers

Lpd6803 datasheet led driver ic

at89c5x系列的at89s53的芯片资料-at89c5x series chips at89s53 information

这是一个为51系列单片机开发的4*4键盘驱动程序。该驱动程序包括2个文件，使用时将C文件关联入工程，在调用文件前包含H文件即可。本键盘驱动程序具有两个接口函数提供两种扫描方式（阻塞和非阻塞），可以任意定制返回键值，具有防抖动处理，具体使用方法可以参见注释。（本程序在Keil C51开发环境中测试成功，并经过多次实践应用）。-This is a series of 51 MCU development of the 4* 4 keyboard driver. The drive included two documents, the use of paper will be linked into C, the call of documents containing H documents. The keyboard driver has two interface functions provide two scan mode (blocking and non-blocking), it will return to arbitrary custom keys with innovative and handling, the use of specific methods can be found in Notes. (This procedure Keil C51 development environment to test successful, and after several practice application).

简单的入门例程，初学者的必看。。。。。。关于51单片机的C语言开发-Introduction to simple routine, the must-see for beginners

编译通过的两块单片机读写双口RAM7132的原程序！供大家参考！-compiled by the two dual-port MCU literacy RAM7132 the original program! For your reference!

彭鸿才电机原理及拖动,希望对大家有帮助，共同学习，多多交流-none

51单片机IO 口模拟232通讯程序 占用定时器0 -51 SCM 232 analog IO communication procedures occupied Timer 0

AT89C51与字符型液晶模块16x2联接的C语言程序-AT89C51