51例有很多很好的例子，原来的原代码…

PIC16F877单片机硬件IIC编程-PIC16F877 microcontroller programming hardware IIC

步进电机驱动程序.... 可以通过改变定时来控制电机速度

用loop51实现的可调式脉冲发生及检测器，可以手动输入所发生脉冲的频率和占空比，实时检测及动态显示-loop51 achieved with adjustable pulse and the detector, which can occur manually input pulse frequency and duty cycle, real-time detection and dynamic display

LED段码计算工具，增加了方便的功能 NEW-LED terms of the Code, to increase the convenience function NEW

基于单片机的电子导游系统设计,采用了miniC-A101FS和单片机AT89C2051配合使用。-Based on single-chip electronic guide system design, using miniC-A101FS and use single-chip AT89C2051.

利用SMALL RTOS51做的一个项目，全部齐，用KEIL 7.07可马上编译-use SMALL RTOS51 do a project, all of chai, can be used immediately KEIL compiler 7.07

超声波测距模组使用说明书v1.0.pdf-Ultrasonic Ranging Module Manual v1.0.pdf

AP3706电路图 AP3706电路图 -LED驱动，可以驱动5WLED驱动

关于51单片机DS18B20的驱动程序，编译过，可以直接使用。-About 51 Singlechip DS18B20 driver, compiler, and can be used directly.

包含常用液晶的C51驱动程序，如SED1335驱动320x240图形液晶驱动演示程序，ACM-12864汉字液晶显示驱动程序，44780字符液晶屏驱动演示程序总线方式，1602液晶显示驱动等-C51 contains the commonly used liquid crystal driver, such as 320x240 graphics driver SED1335 LCD driver demo program, ACM-12864 Chinese characters liquid crystal display drivers, LCD driver 44780 characters Bus Demonstration Program, 1602, such as liquid crystal display driver