4*4键盘扫描 参数以定义 直接使用

AVR单片机上跑的MMC卡加FAT16文件系统的例程-AVR run MMC Cagayan FAT16 file system routines

C51汇编必做试验7 -- 通过串行口与PC机通信（上位机控制的必备）-C51 compilation of tests must be done 7- through the serial port with the PC, communications (Host Computer Control Essential)

一款带七路数字输入、二路脉冲输入、四路模拟输入、六路数字输出的工业控制板。值勤得学习哦。-With a seven-way digital input, Rd pulse inputs, four analog inputs, six digital output of the industrial control panel. Duty was to learn Oh.

一个电子仪器的开发原程序！绝对可以用！一个电子仪器的开发原程序！绝对可以用！-The development of an electronic instrument the original program! Absolutely can! The development of an electronic instrument the original program! Absolutely can!

自己设计的基于51单片机的简易电子词典，方便阅读，便于修改-Of their own design based on 51 single-chip simple electronic dictionaries, user-friendly, easy to modify

本库利用51的timer2，9600bps适用于有片内外部存储器的51芯片占用32byte缓存，重写putchar,getchar函数，循环队列，后台操作。-for the use of timer2 51, 9600 applied to the external memory unit within the occupied 32byte 51 chip cache, rewritten putchar, getchar function, circulating cohort, background operation.

典型PID算法程序，经实验，控制效果优，控制精度高。-It is a representative program of PID arithmetic.The effect of control is excellent and the precision of control is high via experiment.

8051串口通信的单片机程序,使用C语言和VB语言.-8051 single-chip serial communications, the use of C language and VB language.

st7920液晶显示模块,采用c语言编写,可直接显示12864 -st7920 liquid crystal display module, using c language, can be directly displayed 12864

用pic单片机解码的1527遥控遥控接收程序-Single-chip decoder with pic of the 1527 Remote Control Remote Control Receiver procedures