3leds

使用51单片机设计的相位计，并有毕业设计论文。(Use of 51 single-chip design phase meter, and a graduation thesis.)

在PSOC1下触摸功能工程文件(CY21434)(In PSOC1 project file under the Touch function (CY21434))

说明：  介绍了一种用加速度传感器测量振动位移信号的方法。 该方法采用频谱转换法，首先将加速度谱转换成位移谱，再计算出位移谱中每个频率分量对应的幅值 、圆频率和初相角，最后对各位移分量进行叠加得到振动位移的时间历程。 验证试验结果表 明该方法 可行 ， 精度可满足工程 实践的需要 。(A method of measuring vibration displacement signal with acceleration sensor is introduced. In this method, the acceleration spectrum is first converted into displacement spectrum, and then the corresponding amplitude, circular frequency and initial phase angle of each frequency component in the displacement spectrum are calculated. Finally, the time history of the vibration displacement is obtained by superimposing each frequency component. The test results show that the method is feasible and the accuracy can meet the needs of Engineering practice.)

说明：  用proteus仿真实现BLDC无刷直流电机的控制，目前仅工作于开环状态，可以参考一下。(BLDC brushless DC motor control is realized by Proteus simulation. At present, BLDC brushless DC motor only works in open-loop state, which can be referred to.)

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.)

中兴通讯ZXMSG 9000（V1.0）媒体网关技术手册。(ZTE ZXMSG 9000)

使用STM32+SIM800C，拨打电话、发送短信、透传和手机蓝牙控制等(Using STM32 + SIM800C, dialing, sending short messages, transmission and Bluetooth control of mobile phones, etc)

说明：  keil c51 开发安装包 新唐51内核插件(Keil C51 Development and Installation Package Xintang 51 Kernel Plug-in)

C51 编的音乐程序，关于如何编制音乐代码, 其实十分简单，频率常数即音乐术语中的音调,而节拍常数即音乐术语中的多少拍(C51 music program)

多点温度循环测量可以实现多个点温度循环检测并显示(Multi-point temperature measurement cycle can implement multiple point temperature loop detection and display)