measure coin used 89c52, which use two Timers

单片机的基本知识介绍！-SCM introduced to the basic knowledge!

这是运用MSP430单片机 对键盘进行判别的程序 运用单片机引脚的中断功能 使得只用一次扫描就可以 识别键盘码 -This the use of the keyboard MSP430 the procedures for identifying the microcomputer-pin interrupted feature allows only one scan can be identified keyboard code

USB2.0原理与工程开发光盘，包含源代码。-USB2.0 principles with the development of CD-ROM project, including the source code.

24C02的读写操作,用汇编语言完成,在开发板上运行正常-24C02

u盘制作资料(原理图、文档、底层驱动源程序)_-u disk production of information (drawings, documents, the bottom-driven source) _

伺服马达控制的C51程序。 文件： sifu*.c sifu*.Uv2 sifu*.hex 等相关文件。-Servo motor control of the C51 program. File: sifu*. csifu*. Uv2sifu*. hex and other relevant documents.

单片机IO口模拟UART演示程序，使用74HC164串行显示数据-Single-chip analog IO port UART demo program, the use of 74HC164 serial display data

STM32 开发板例子:外部中断. 开发环境:Keil For ARM-STM32 development board example: external interrupt. Development Environment: Keil For ARM

51单片机操作串行通信LCD LM3037的源代码,该源代码可用来调试程序.-51 Single-chip serial communication operation LCD LM3037

51单片机的编程规范，对初学51编程有帮助。-51 microcontroller programming norms for beginners 51 programming help.