印刷电路板的最小系统，可以修改，以提供计划，使用钍…

该程序基于凌阳单片机做的无线温度遥测系统，并在液晶屏上进行显示-Sunplus based on the program to do single-chip wireless telemetry system temperature, and liquid crystal display screen. . .

红外线接收程序,本程序运行在NEC制下的遥控器下-Infrared receiver program, the program is running in the NEC remote control system under

我的89S52设计作品之一：基于89S52单片机的数值电压表：该电路采用MAX187高精度A/D转换器，采用串行输出，测量范围直流0-20伏，使用1602LCD液晶模块显示，使用了双积分电路的原理.-One of my design work 89S52: 89S52 microcontroller-based voltmeter values: the circuit with MAX187 high-precision A/D converter, serial output, measuring range 0-20 volts DC, using 1602LCD LCD module shown that the use the principle of double integral circuit.

at89c2051制作的超声波测距源程序 范围20cm-10m 精度1cm 如果需要电路图 请与我联系！-AT89C2051 source produced by the scope of ultrasonic rangefinder 20cm-10m accuracy 1cm circuit diagram if you need please contact me!

1602的详细讲解，DATASHEET 和KEILC51的原码，可以作为参考-1602 of detailed briefings, DATASHEET and KEILC51 original code, can be used as reference

线性光耦合器的简单介绍。-linear optocoupler brief.

单片机上支持SD卡。SPI方式通讯，速度几十K-Single-chip support for SD cards. SPI communication, the speed of dozens of K

为了让广大的工科大学生理解单片机应用系统的开发方法，我们特别提供一个中小规模的典型应用案例，我们把具有详细注释的基于AT89C51单片机的心电信号发生器软件供大家参考，不妥之处请大家批评指出，愿此软件能够给你一点帮助，南昌航空大学自动化学院生物医学工程赵文龙供。2008年8月28日。-In order to enable the broad masses of the engineering students to understand single-chip microcomputer application systems development methodology, we are particularly small and medium-sized to provide a typical application case, we have a detailed annotated AT89C51 single-chip microcomputer-based ECG Signal Generator Software for your reference, not properly requested of the U.S. criticism that this software would like to be able to give you a little help, Nanchang University of Aeronautics automation Zhao Wenlong Institute for Biomedical Engineering. August 28, 2008.

void InitGoertzel(void) 作用：初始化算法参数 用法：采用算法进行检测前执行一次，如果需要改变参数，调用SetParameter() float CGoertzel::GetMagnitude(unsigned char * sampleData, int length) //算法主接口 作用：对采集下来的音频数据用算法处理，返回一个结果 参数：sampleData－音频数据缓冲地址指针； length-缓冲区尺寸(音频数据数量),字节数； 返回值：返回算法结果。 void SetParameter(DWORD set_SampleRate, DWORD set_TargetFreq, DWORD set_BlockSize) 作用：设置算法参数； 参数：set_SampleRate-音频数据抽样速率； set_TargetFreq-目标信号频率； set_BlockSize－算法数据块尺寸(采样点)； 用法：调用本函数后，需要调用一次InitGoertzel(void)才会生效-void InitGoertzel (void) function: initialization algorithm parameters Usage: The algorithm performs a pre-test, if the need to change the parameters, calling SetParameter () float CGoertzel:: GetMagnitude (unsigned char* sampleData, int length)// Algorithm for the main interface role: to collect audio data from the treatment algorithm to return a result parameter: sampleData-audio data buffer address pointer length-buffer size (the number of audio data), number of bytes return value: the return of

IC卡操作软件:AT88SCl604芯片的操作模式有五种。它们是通过配PGM、RST、CLK等引脚信号及内部地址计数器(IAC)的状态组合来实现。 (1) 芯片复位操作： AT88SCl604有两种复位方式:上电复位和控制复位。 上电复位： 上电复位是当芯片加电时的最初状态。上电复位属于芯片 内部复位。它将使芯片内部所有的隐含标志复位到"0"状态。并使地址计数器复位到0位。 控制复位： 当CLK为低时，在RST脚上的一个下降沿将便芯片产生复位操作。 控制复位是将地址计数器复位到0位，而不影响任何内部标志的状态。-IC Card operating software : AT88SCl604 chip mode of operation there are five. They are allocated by PGM, RST, etc. pin CLK signal and the internal address counter (IAC) portfolio of the state is to be achieved. (1) chip reset operation : reduction AT88SCl604 two ways : power-on reset and reset control. Power-on reset : power-on reset when the chip is in power at the initial state. Power-on reset the internal chip is reset. It will enable all internal chip implied signs reset to "0" state. Make address counter reset to 0. Reset control : When the CLK for the low, the RST feet of a falling edge chips will have to reset operation. Reset control is to address counter reset to 0, without prejudice to any signs of internal sta