MSP430 MCU to download the official line schematic drawings

用51写的旋转式编码器程序，可以让朋友们了解旋转式编码器的基础编程。-Written by 51 rotary encoder could offer my friends understand the rotary encoder based on programming.

键盘扫描程序，逐行拉低，错位相交的方法实现-Keyboard scanner, progressive degrade realize dislocation intersect method

ATMEL ARM7有关TWI应用设置的程序,可以在IAR中直接运行-ATMEL ARM7 applications related to TWI programs can be run directly in IAR

16分钟语音芯片ISD4004操作的C51源程序，自己调试通过的！-16 minutes of voice chip ISD4004 operated source C51, adopted its own debugging!

C8051F的步进电机驱动程序。控制中的经典问题，值得一看-C8051F stepper motor driver. Control of the classic, eye-catcher

用单片机不同的IO口驱动数码管，以解决IO口不是一个PO口的问题。-Microcontroller IO port with a different drive digital tube, to address the IO port is not a PO mouth problem.

32位arm9微处理器S3C2410的异步串口测试源代码-32-bit ARM9 microprocessor S3C2410 asynchronous serial test source code

C51强大功能及其高效率的重要体现之一在于其丰富的可直接调用的库函数，多使用库函数使程序代码简单，结构清晰，易于调试和维护，下面介绍C51的库函数系统。-C51 powerful features and its high efficiency in one important manifestation of its rich can directly call the library, multi-use library functions to make the code simple, clear and easy to debug and maintenance, and C51 introduced below the library system.

超声波测距模组使用说明书 电路图 程序 绝对有参考价值 -Ultrasonic Ranging Module Manual Schematics procedures have absolute reference value

基于单片机c8051F020开发环境下的计数器程序代码-C8051F020 development environment based on the single-chip counters under the code