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ad_da 数电——模电 转换,单片机应用子程序(ad_da transformation)

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.)

点阵LED、数码管、独立LED和无源蜂鸣器的驱动模块(Dot matrix LED, digital control, independence and passive buzzer LED driver module)

红外的收发测试。。通过2路红外发射，顺序接收，检测收发功能是否正常(Infrared transceiver test. . 2-way infrared transmitter, received out of sequence detection transceiver function is normal)

模拟了现实中的示波器，可以滚动显示波形，动态显示，属性振幅都可以改变 实用性 比较好 (Simulated reality oscilloscope, you can scroll waveform display, dynamic display, amplitude attribute can be changed relatively good practicality)

7620摄像头采集程序（飞思卡尔128芯片）(7620 camera acquisition program (the Freescale 128 chip))

用stm32单片机进行pwm输出和ADC设置(USE STM32 MCU OUT PUT PWM WAVE AND ADC)

基于51系列单片机的eeprom例程，其中包括c,hex及其相关文件，硬件电路图，相关芯片介绍。(Based on 51 series MCU eeprom routines, including c, hex and its associated files, hardware schematics, related chip introduced.)

pic modified sine wave inverter circiut

程序是DS1302做的电子时钟，内部有DS1302的datasheet和具体的程序(Program is the DS1302 doing electronic clock within the DS1302 datasheet and specific program)