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4X4矩阵键盘+LCD1602显示,可以开发好多功能-4X4 matrix keyboard+ LCD1602, it can be a good multi-purpose development

中断触发的串口收发程序，可以检测按键，并且用四位数码管显示接收到的前四位代码，有详细的注释-Interrupt-triggered serial transceiver program can detect key, and LED display with four of the top four received the code, contains a detailed comment

单片机I2C接口MSP430应用24C16C源代码

帮助初学PIC单片几的人快速入门,同时也可以为有经验的工程师提供产考.-PIC chip to help beginners a few people get started quickly, but also for experienced engineers to provide production test.

单片机并口扩展芯片8255A源码，内服仿真文件和说明文件-Single-chip parallel port expansion 8255A chip source, internal simulation files and documentation

LCD液晶显示器源码 keil c51 at89c51-LCD liquid crystal display source keil c51 at89c51

利用89C2051实现模数转换的一种方法源程序，该程序使用C51语言编写，可以用于MCS8051单片机-use 89C2051 analog-digital conversion of a way to the source, the procedure used to prepare C51, SCM can be used Mcs8051

电子密码锁，可以自己设置密码，C语言编写的-Electronic code lock, you can set up their own password, C language

32位arm9微处理器S3C2410的中断程序测试源代码-32-bit ARM9 microprocessor S3C2410 interruption procedures to test the source code

ADC0809AD转换器基本应用技术，proteus的实践例子 既有电路又有keil里的程序 asm or c-Converter ADC0809AD basic application technology, proteus practice examples of both circuit and keil procedures in asm or c