If you are interested in learning more about the FFT, here are some good resources that i used in writing my code. ELM-ChaN FFT library: A very good implementation that is more portable and can handle imaginary inputs, larger FFT sizes, and a slightly more accurate output. But, it is...
ArduinoFFT库是将输入模拟信号转换为频谱的代码的核心。我发现这个库易于使用,并为该项目生成了最准确的输出。Prototype配置为生成64个样本,并使用这些样本进行FFT。ArduinoFFT库可以对16到128之间的样本进行FFT,这可以在程序中进行配置。但arduinoFFT库计算速度慢,有128个样本,因此我坚持64个样本中最好的最高。
arduinoFFT This is a fork fromhttps://code.google.com/p/makefurt/which has been abandoned since 2011. This is version 2.0 of the library, which has a differentAPI. Tested on Arduino 1.8.19 and 2.3.2. Installation on Arduino Use the Arduino Library Manager to install and keep it updated...
实验一百四十九:MAX9814麦克风放大器模块 MIC话筒声音放大/咪头传感器 项目三十二:使用FFT库的迷你音乐频谱仪(声谱可视化器) 实验接线方法: max9814接A0 oled模块 Ardunio Uno GND---GND接地线 VCC---5V 接电源 SDA---A4 SCL --- A5 */ #include "arduinoFFT.h" #include <Adafruit_GFX.h> #include <Ada...
arduinoFFT This is a fork fromhttps://code.google.com/p/makefurt/which has been abandoned since 2011. This is version 2.0 of the library, which has a differentAPI. Tested on Arduino 1.8.19 and 2.3.2. Installation on Arduino Use the Arduino Library Manager to install and keep it updated...
第二个是CS引脚，第三个是连接设备的最大数量。此外，使用函数arduinoFFT()为arduinoFFT创建一个实例。
arduinoFFT fft = arduinoFFT(vReal, vImag, SAMPLES, SAMPLING_FREQ); //调整参考以去除背景噪声 float reference = log10(60.0); double coutoffFrequencies[FREQUENCY_BANDS]; void setup() { // SSD1306_SWITCHCAPVCC = generate display voltage from 3.3V internally ...
arduinoFFT fft = arduinoFFT(vReal, vImag, SAMPLES, SAMPLING_FREQ); //调整参考以去除背景噪声 floatreference = log10(60.0); doublecoutoffFrequencies[FREQUENCY_BANDS]; voidsetup() { // SSD1306_SWITCHCAPVCC = generate display voltage from 3.3V internally ...
/* 【Arduino】168种传感器模块系列实验(资料代码+仿真编程+图形编程) 实验一百三十六:0.91寸OLED液晶屏显示模块 IIC 12832液晶屏 兼容3.3v-5V 项目十六:使用FFT库的迷你音乐频谱仪(声谱可视化器) 实验接线方法: max9814接A0 oled模块 Ardunio Uno GND---GND接地线 VCC---5V 接电源 SDA---A4 SCL --- A5 ...
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