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4*4扫描键盘,通过键值通过4个数码管显示出来.-4* 4 Scanning keyboard, through key through four digital tube display.

常用嵌入式IC的型号，各厂家的都有。-commonly used embedded IC models, the manufacturers have.

智能遥控电风扇控制器源程序，可以实现风速换档，带有温度控制，所有功能可用遥控完成-Intelligent Remote Controller source fans, can achieve a speed of transmission, with temperature control, all functions can be remote-controlled completed

飞思卡尔车身控制技术研讨会资料 里面有LIN的主从节点源程序-Freescale Seminars Body Control has inside information on the LIN master-slave node source

步进电机加减速运行程序 步进电机启动时，转速由慢到快逐步加速 步进电机匀速运行 步进电机由快到慢逐步减速到停止-Stepper motor stepper motor deceleration run the program starts, the speed gradually from slow to fast speed stepper motor stepper motor run by a uniform approaching slowly and gradually slow down to stop

平凡老师单片机超经典课件，及其适合初学者入门学习 -Ordinary single-chip ultra-classic teacher courseware, and suitable for beginners learning portal

RTL8139 Series PCB Layout Guide

电子指南针与单片机通信-electronic compass and SCM Communications

ds18b20显示程序，用数码管显示，能测0到99度的温度-DS18B20 display program with digital display, can be measured 0-99 degrees C temperature

C51七种实用子程序集3-C51 seven practical subroutine Set 3