老外做的软件实现DTMF

用凌阳单片机输入频率控制并输出14位2进制码锁住相应频率-With Sunplus Singlechip frequency control input and output 14 2 hexadecimal code corresponding frequency locked

用单片机控制74LS244做的串口通信系统。-74LS244 done with single-chip microcomputer to control the serial communication system.

该程序是用单片机C51语言编写的关于步进电机控制的程序，里面包含了详细的说明，对于初学者有很好的帮助！

液晶显示器以其微功耗、体积小、显示内容丰富、超薄轻巧的诸多优点，在袖珍式仪表和低功耗应用系统中得到越来越广泛的应用。 这里介绍的字符型液晶模块是一种用5x7点阵图形来显示字符的液晶显示器，根据显示的容量可以分为1行16个字、2行16个字、2行20个字等等，这里以常用的2行16个字的1602液晶模块来介绍它的编程方法。 -LCD display with its micro-power consumption, small size, display rich content, ultra-thin lightweight many advantages, in the pocket instrumentation and low-power applications are more and more widely. Here introduce the character LCD module is a 5x7 matrix used to display graphics characters liquid crystal display, according to show that the capacity of one line can be divided into 16 characters, 2 lines 16 characters, 2 lines 20 characters and so on, here commonly used 2 lines 16 characters LCD module to the 1602 introduction of its programming method.

单片机的C语言编程应用开发程序 十分有用哦很好 的 -SCM C programming language application development process very useful oh we

c8051fxxx单片机所有外设C例程，希望对大家有用。-c8051fxxx Microcontroller C routines for all peripherals and hope for all of us.

mage8的数码管扫描程序 -mage8 digital control digital control mage8 scanner scanner

北京青云创新的KCM，kcm06XK的驱动，不过是与MSP430单片机的。-Beijing Qingyun innovative KCM, kcm06XK drive, but with the MSP430.

AT24C256是ATMEL公司256kbit串行电可擦的可编程只读存储器，8引脚双排直插式封装，具有结构紧凑、存储容量大等特点，可以在2线总线上并接4片该IC，特别适用于具有高容量数据储存要求的数据采集系统。本文将介绍该IC的工作原理和与单片机的软硬件接口。-ATMEL Corporation AT24C256 is 256kbit serial electrical erasable programmable read-only memory, 8-pin double-line package, has a compact structure, characterized by large storage capacity can be 2-wire bus, and then 4 the IC, is especially suitable for high-capacity data storage requirements of the Data Acquisition System. This article will introduce the working principle of the IC and single-chip hardware and software interface.

提供了一个简单的KEIL C51工程模板，包含最基本的函数以及宏定义，简化KEIL C51开发过程。-Provides a simple template KEIL C51 project, including the most basic function and macro definitions, to simplify the development process KEIL C51.