dianshi

本例是用51单片机的键盘解码程序，亲试好用(This case is a keyboard with 51 decoding process, pro-test handy)

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.)

51单片机简单进行测试是否正常测试内容为LED灯等(51 single simple test whether the normal test content for the LED lights)

给大家介绍一个PDF操作的sdk。通过这个sdk你可以直接对PDF文件进行显示、修改、新建及打印(Debenu Quick PDF Library Guide)

4通道ad7682驱动程序 在msp430单片机上调试成功(4-channel ad7682 driver debugging success msp430 microcontroller)

激光切割上位机源码，生成NC刀路，不含NC扩展插件。(Laser cutting the host computer source code, generate NC knife road)

基于stm32的蜂鸣器实验源码。需要在对应平台上使用(Based on the stm32 buzzer experimental source. Need to use on the corresponding platform)

IC(PIC16F690)驱动程序C语言代码，为需要帮助的人提供方便，互相帮助！(IC (PIC16F690) driver C language code, for the people who need help to facilitate and help each other!)

说明：  看电子电路时序图如何看，这是个好方面，可以看看(Electronic circuit timing diagram to see how the look, this is a good side, you can see)

光伏逆变器SVPWM设计原理图,包含逆变器控制算法(PV inverter SVPWM design schematics, including inverter control algorithm)