shumaguanPhongwai

本项目是基于Cortex-M3 的地沟油快速检测装置，旨在实现“地沟油”快速，现场检测。MCU控制可编程的直接数字频率合成器（DDS）产生正弦激励信号，经过可变增益放大器（VGA）和低通滤波器（LPF）作用于食用油阻抗传感器（实验室制作）信号经过仪器放大器送入微控制器（MCU）的模数转化（ADC）通道，MCU对采集的信号通过快速傅里叶变换（DFT）处理，实现食用油阻抗与相角的检测；USB和以太网接口，可与计算机通讯，以便对采集的数据进行存储和分析。(The project is based on the Cortex-M3 waste oil rapid detection device designed to achieve " waste oil" rapid, on-site testing. MCU control programmable direct digital frequency synthesizer (DDS) generates sinusoidal excitation signal through a variable gain amplifier (VGA) and a low-pass filter (LPF) acting on the oil-impedance sensor (lab produced) to send signals through the instrumentation amplifier into the microcontroller (MCU) modulo conversion (ADC) channels, MCU signal acquisition via Fast Fourier Transform (DFT) processing, oil resistance and phase angle detection USB and Ethernet interfaces, and computer communication, in order to collect data for storage and analysis.)

direct sparse solver for linear equations

stm32下跑通usb外设，编译环境基于keil(stm32 next run through usb peripherals, based on keil compiler environment)

这是24L01开发头程序，希望对大家有帮阻(24L01 This is the first development process, we hope to help a resistance)

说明：  MCU 52 单片机控制程序，主要功能是日历时钟显示函数控制函数的算法。(MCU 52 microcontroller control program, the main function is to control the function of the calendar clock display function, the algorithm.)

Visual C++数据库编程与实例 pdf超高清电子版与原书光盘，非常不容易搞来的，福利来啦！200多M，只能分割，敬请见谅！主卷是VisualCDatabaseProgramAndExamples.zip，还需要下载12个分卷，此为第5分卷(Visual C++ database programming with examples pdf electronic version of ultra-high-definition optical disc with the original book, is not easy to engage in, and benefit coming! More than 200 M, only split, please forgive me!)

测试程序ATMEGA8LED的灯亮和灯灭(Test ATMEGA8LED lights turn on and off)

51单片机模拟一个USB键盘的代码，c语言编写的(51 USB keyboard microcontroller code that simulates a, c languages)

基于热敏电阻电路仿真 proteus 仿真 基于热敏电阻电路仿真 proteus 仿真(re min dian zu fang zhen re min dian zu fang zhen re min dian zu fang zhen re min dian zu fang zhen)

说明：  1604 lcd 显示屏写数据写命令 ,(lcd display Write data Write Command,Initialization)