ad 转换　５１编程事例　值得学习以下对出学者有用

本文详细介绍了4×4矩阵式键盘识别技术，内含详细的电路图和C51源代码。-This paper describes a 4 × 4 matrix keyboard recognition technology, and contains detailed schematics and source code C51.

采用TOP227单片开关电源芯片实现的充电器，内附电路图-used TOP227 SMPS chip chargers, enclosing circuit

IgorPlugUSB_AVRUB应用与管理，内含IgorPlugUSB相应资料-IgorPlugUSB_AVRUB application and management, including the corresponding information IgorPlugUSB

PIC单片机子程序集合，适合刚接触PIC单片机的朋友，里面主要是汇编程序，有几个是C语言。-PIC Singlechip subroutine set for PIC MCU刚接触Friend, which is mainly a compilation procedure is the C language has a few.

8051F_Modbus.rar是在C8051F020单片机上编写的ＣＲＣ１６校验的MODBUS协议.-C8051F020 Singlechip 8051F_Modbus.rar is prepared CRC16 checksum of the MODBUS protocol.

AVR的旋转编码器解码程序。可以判断正反向。-AVR of the rotary encoder decoder program. Can determine positive and negative.

gp32是模托罗拉比较早的一款片子，资源较少但比较容易学习，是初学者不错的选择。-Die Torola gp32 is a comparison of the early films, but with fewer resources to more easily study is a good choice for beginners.

这是一个红外报警系统，该系统通过555调制红个发光管，发出38KHZ的红外信号，对面使用一个红外接收头接收信号用来检测是否有人通过，如果有，则声光报警，-This is an infrared alarm system, which modulator 555 through a red light-emitting tube, issued 38KHZ IR signal, opposite to the first use of an infrared receiver to receive signals to detect whether or not it was passed, if so, make a sound light alarm,

avr单片机，4*4键盘源程序-avr microcontroller, 4* 4 keyboard source

单片机实现通信工程实践Ｃ语言代码，欢迎有兴趣的朋友下载，因为是自己收集的代码没有仔细研究，希望对大家有用处！-MCU Communication Engineering Practice C language code, are welcome to download friends, because it is his collection of code without careful study, we hope to be useful!