自己写的lcd1602的驱动程序，底层驱动和上层程序层次分明，很容易移植...

MSC51单片机学习点燃LED，C51编程-MSC51 Singlechip learning lit LED, C51 Programming

单片机proteus仿真，可以做成实例的仿真文件-proteus proteus

在电话上用单片机来实现电话报警系统-a phone alarm system develop by MCU on phone line

AVR的mega16单片机与51单片机的串口通信程序源码-The MCU of atmega16 of AVR and the MCU of C51 communication

89c52 eprom 的子程序 可以参考一下 -89C52 eprom the subroutine can reference

通过把音乐的节奏转变成字符以实现通过高低电平让蜂鸣器响-By the rhythm of the music into a character in order to achieve high-low so that buzzer sound

一个单片机课本的教案别且还有上课的课件，对于想自学的朋友有很大帮助！-A microcontroller textbooks and lesson plans do not have class courseware, a friend who want to self-helps a lot!

用SPCE061A控制两个电机画任意直线的程序。 -SPCE061A controlled by two motors draw a straight line of arbitrary procedures.

一个采用C8051F020芯片实现的流量计控制系统源代码，包括了对C8051F020内部AD和DA的编程、共12个LED（采用74HC195)的编码驱动编程等。-A C8051F020 chip using the flowmeter control system source code, including the internal C8051F020 programming AD and DA, a total of 12 LED (using 74HC195) encoding-driven programming.

基于51的使用步进电机控制升旗程序c语言-Stepper motor control based on the 51 flag-raising program c language