51 microcontroller and PC serial communication of program source code.

callback demo program, you can learn how to write callback functions

用步进电机画图的完整原代码，集成50多种图形-Stepper motor used to draw a complete source code, integrated more than 50 kinds of graphics

一种自激式开关稳压电源的设计, pdf格式

单片机课程设计程序，利用单片机模块实现键盘扫描输入输出显示-SCM curriculum design process, the use of MCU module for the keyboard scan input and output display

MSP430 单片机的下载线原理图 官方图纸-MSP430 MCU to download the official line schematic drawings

这是我在其它网上找到的，是基于ATMEG8单片机的小机器人，名字叫ASURO，很多地方有卖的，这个程序是可以自动寻找轨迹，对初学者是有帮助的。-This is what I found in other online, is based on a small microcontroller ATMEG8 robot named ASURO, are sold in many places, this program is automatically look for tracks, is helpful for beginners.

可以用．精度达到１度．调试通过．显示部分用的是MAX7219 -can use. Achieve a degree of precision. Debugging through. The show is part of MAX7219

ch375的USB驱动打印程序 很有用-ch375 printing process of the USB drive is useful

新华龙内置10位dac0产生正弦波的程序，算法经典，dac1的程序只要改一改寄存器就行-Hualong 10 new built-generated sine wave dac0 procedures, the classical algorithm, dac1 procedure simply register on line as long as

用8个数码管，用一片48和一片138控制 的子程序，-with eight digital control with a 48 and a control subroutine 138,