Tengo 3 errores en el audio spectrum analyzer con esp32

rodohec · February 3, 2025, 4:07pm

// (Heavily) adapted from ESP32-8266-Audio-Spectrum-Display/ESP32_Spectrum_Display_02.ino at master · G6EJD/ESP32-8266-Audio-Spectrum-Display · GitHub
// Adjusted to allow brightness changes on press+hold, Auto-cycle for 3 button presses within 2 seconds
// Edited to add Neomatrix support for easier compatibility with different layouts.

#include <FastLED_NeoMatrix.h>
#include <arduinoFFT.h>
#include <EasyButton.h>

#define SAMPLES #define SAMPLING_FREQ #define AMPLITUDE #define AUDIO_IN_PIN 35 #define LED_PIN #define BTN_PIN #define LONG_PRESS_MS 200 #define COLOR_ORDER #define CHIPSET #define MAX_MILLIAMPS const int BRIGHTNESS_SETTINGS[3] = {5, 70, 200}; #define LED_VOLTS #define NUM_BANDS #define NOISE const uint8_t kMatrixWidth = 16; const uint8_t kMatrixHeight = 16; #define NUM_LEDS #define BAR_WIDTH #define TOP #define SERPENTINE 1024 // Must be a power of 2
40000 // Hz, must be 40000 or less due to ADC conversion time. Determines maximum frequency that can be analysed by the FFT Fmax=sampleF/2.
1000 // Depending on your audio source level, you may need to alter this value. Can be used as a 'sensitivity' control.
// Signal in on this pin
5 // LED strip data
4 // Connect a push button to this pin to change patterns
// Number of ms to count as a long press
GRB // If colours look wrong, play with this
WS2812B // LED strip type
2000 // Careful with the amount of power here if running off USB port
// 3 Integer array for 3 brightness settings (based on pressing+holding BTN_PIN)
5 // Usually 5 or 12
16 // To change Texto preformateadothis, you will need to change the bunch of if statements describing the mapping from bins to bands
500 // Used as a crude noise filter, values below this are ignored
// Matrix width
// Matrix height
(kMatrixWidth * kMatrixHeight) // Total number of LEDs
(kMatrixWidth / (NUM_BANDS - 1)) // If width >= 8 light 1 LED width per bar, >= 16 light 2 LEDs width bar etc
(kMatrixHeight - 0) // Don't allow the bars to go offscreen
true // Set to false if you're LEDS are connected end to end, true if serpentine

// Sampling and FFT stuff
unsigned int sampling_period_us;
byte peak[] = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}; // The length of these arrays must be >= NUM_BANDS
int oldBarHeights[] = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
int bandValues[] = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
double vReal[SAMPLES];
double vImag[SAMPLES];
unsigned long newTime;
arduinoFFT FFT = arduinoFFT(vReal, vImag, SAMPLES, SAMPLING_FREQ);

// Button stuff
int buttonPushCounter = 0;
bool autoChangePatterns = false;
EasyButton modeBtn(BTN_PIN);

// FastLED stuff
CRGB leds[NUM_LEDS];
DEFINE_GRADIENT_PALETTE( purple_gp ) {
0, 0, 212, 255, //blue
255, 179, 0, 255 }; //purple
DEFINE_GRADIENT_PALETTE( outrun_gp ) {
0, 141, 0, 100, //purple
127, 255, 192, 0, //yellow
255, 0, 5, 255 }; //blue
DEFINE_GRADIENT_PALETTE( greenblue_gp ) {
0, 0, 255, 60, //green
64, 0, 236, 255, //cyan
128, 0, 5, 255, //blue
192, 0, 236, 255, //cyan
255, 0, 255, 60 }; //green
DEFINE_GRADIENT_PALETTE( redyellow_gp ) {
0, 200, 200, 200, //white
64, 255, 218, 0, //yellow
128, 231, 0, 0, //red
192, 255, 218, 0, //yellow
255, 200, 200, 200 }; //white
CRGBPalette16 purplePal = purple_gp;
CRGBPalette16 outrunPal = outrun_gp;
CRGBPalette16 greenbluePal = greenblue_gp;
CRGBPalette16 heatPal = redyellow_gp;
uint8_t colorTimer = 0;

// FastLED_NeoMaxtrix - see GitHub - marcmerlin/FastLED_NeoMatrix: Adafruit GFX compatible library for NeoPixel based Matrices using FastLED library for Tiled Matrixes, Zig-Zag and so forth
FastLED_NeoMatrix *matrix = new FastLED_NeoMatrix(leds, kMatrixWidth, kMatrixHeight,
NEO_MATRIX_TOP + NEO_MATRIX_LEFT +
NEO_MATRIX_ROWS + NEO_MATRIX_ZIGZAG +
NEO_TILE_TOP + NEO_TILE_LEFT + NEO_TILE_ROWS);

void setup() {
Serial.begin(115200);
FastLED.addLeds<CHIPSET, LED_PIN, COLOR_ORDER>(leds, NUM_LEDS).setCorrection(TypicalSMD5050);
FastLED.setMaxPowerInVoltsAndMilliamps(LED_VOLTS, MAX_MILLIAMPS);
FastLED.setBrightness(BRIGHTNESS_SETTINGS[1]);
FastLED.clear();

modeBtn.begin();
modeBtn.onPressed(changeMode);
modeBtn.onPressedFor(LONG_PRESS_MS, brightnessButton);
modeBtn.onSequence(3, 2000, startAutoMode);
modeBtn.onSequence(5, 2000, brightnessOff);
sampling_period_us = round(1000000 * (1.0 / SAMPLING_FREQ));
}

void changeMode() {
Serial.println("Button pressed");
if (FastLED.getBrightness() == 0) FastLED.setBrightness(BRIGHTNESS_SETTINGS[0]); //Re-enable if lights are "off"
autoChangePatterns = false;
buttonPushCounter = (buttonPushCounter + 1) % 6;
}

void startAutoMode() {
autoChangePatterns = true;
}

void brightnessButton() {
if (FastLED.getBrightness() == BRIGHTNESS_SETTINGS[2]) FastLED.setBrightness(BRIGHTNESS_SETTINGS[0]);
else if (FastLED.getBrightness() == BRIGHTNESS_SETTINGS[0]) FastLED.setBrightness(BRIGHTNESS_SETTINGS[1]);
else if (FastLED.getBrightness() == BRIGHTNESS_SETTINGS[1]) FastLED.setBrightness(BRIGHTNESS_SETTINGS[2]);
else if (FastLED.getBrightness() == 0) FastLED.setBrightness(BRIGHTNESS_SETTINGS[0]); //Re-enable if lights are "off"
}

void brightnessOff(){
FastLED.setBrightness(0); //Lights out
}

void loop() {

// Don't clear screen if waterfall pattern, be sure to change this is you change the patterns / order
if (buttonPushCounter != 5) FastLED.clear();

modeBtn.read();

// Reset bandValues[]
for (int i = 0; i<NUM_BANDS; i++){
bandValues[i] = 0;
}

// Sample the audio pin
for (int i = 0; i < SAMPLES; i++) {
newTime = micros();
vReal[i] = analogRead(AUDIO_IN_PIN); // A conversion takes about 9.7uS on an ESP32
vImag[i] = 0;
while ((micros() - newTime) < sampling_period_us) { /* chill */ }
}

// Compute FFT
FFT.DCRemoval();
FFT.Windowing(FFT_WIN_TYP_HAMMING, FFT_FORWARD);
FFT.Compute(FFT_FORWARD);
FFT.ComplexToMagnitude();

// Analyse FFT results
for (int i = 2; i < (SAMPLES/2); i++){ // Don't use sample 0 and only first SAMPLES/2 are usable. Each array element represents a frequency bin and its value the amplitude.
if (vReal[i] > NOISE) { // Add a crude noise filter

/*8 bands, 12kHz top band
  if (i<=3 )           bandValues[0]  += (int)vReal[i];
  if (i>3   && i<=6  ) bandValues[1]  += (int)vReal[i];
  if (i>6   && i<=13 ) bandValues[2]  += (int)vReal[i];
  if (i>13  && i<=27 ) bandValues[3]  += (int)vReal[i];
  if (i>27  && i<=55 ) bandValues[4]  += (int)vReal[i];
  if (i>55  && i<=112) bandValues[5]  += (int)vReal[i];
  if (i>112 && i<=229) bandValues[6]  += (int)vReal[i];
  if (i>229          ) bandValues[7]  += (int)vReal[i];*/

//16 bands, 12kHz top band
  if (i<=2 )           bandValues[0]  += (int)vReal[i];
  if (i>2   && i<=3  ) bandValues[1]  += (int)vReal[i];
  if (i>3   && i<=5  ) bandValues[2]  += (int)vReal[i];
  if (i>5   && i<=7  ) bandValues[3]  += (int)vReal[i];
  if (i>7   && i<=9  ) bandValues[4]  += (int)vReal[i];
  if (i>9   && i<=13 ) bandValues[5]  += (int)vReal[i];
  if (i>13  && i<=18 ) bandValues[6]  += (int)vReal[i];
  if (i>18  && i<=25 ) bandValues[7]  += (int)vReal[i];
  if (i>25  && i<=36 ) bandValues[8]  += (int)vReal[i];
  if (i>36  && i<=50 ) bandValues[9]  += (int)vReal[i];
  if (i>50  && i<=69 ) bandValues[10] += (int)vReal[i];
  if (i>69  && i<=97 ) bandValues[11] += (int)vReal[i];
  if (i>97  && i<=135) bandValues[12] += (int)vReal[i];
  if (i>135 && i<=189) bandValues[13] += (int)vReal[i];
  if (i>189 && i<=264) bandValues[14] += (int)vReal[i];
  if (i>264          ) bandValues[15] += (int)vReal[i];
}

}

// Process the FFT data into bar heights
for (byte band = 0; band < NUM_BANDS; band++) {

// Scale the bars for the display
int barHeight = bandValues[band] / AMPLITUDE;
if (barHeight > TOP) barHeight = TOP;

// Small amount of averaging between frames
barHeight = ((oldBarHeights[band] * 1) + barHeight) / 2;

// Move peak up
if (barHeight > peak[band]) {
  peak[band] = min(TOP, barHeight);
}

// Draw bars
switch (buttonPushCounter) {
  case 0:
    rainbowBars(band, barHeight);
    break;
  case 1:
    // No bars on this one
    break;
  case 2:
    purpleBars(band, barHeight);
    break;
  case 3:
    centerBars(band, barHeight);
    break;
  case 4:
    changingBars(band, barHeight);
    break;
  case 5:
    waterfall(band);
    break;
}

// Draw peaks
switch (buttonPushCounter) {
  case 0:
    whitePeak(band);
    break;
  case 1:
    outrunPeak(band);
    break;
  case 2:
    whitePeak(band);
    break;
  case 3:
    // No peaks
    break;
  case 4:
    // No peaks
    break;
  case 5:
    // No peaks
    break;
}

// Save oldBarHeights for averaging later
oldBarHeights[band] = barHeight;

}

// Decay peak
EVERY_N_MILLISECONDS(60) {
for (byte band = 0; band < NUM_BANDS; band++)
if (peak[band] > 0) peak[band] -= 1;
colorTimer++;
}

// Used in some of the patterns
EVERY_N_MILLISECONDS(10) {
colorTimer++;
}

EVERY_N_SECONDS(10) {
if (autoChangePatterns) buttonPushCounter = (buttonPushCounter + 1) % 6;
}

FastLED.show();
}

// PATTERNS BELOW //

void rainbowBars(int band, int barHeight) {
int xStart = BAR_WIDTH * band;
for (int x = xStart; x < xStart + BAR_WIDTH; x++) {
for (int y = TOP; y >= TOP - barHeight; y--) {
matrix->drawPixel(x, y, CHSV((x / BAR_WIDTH) * (255 / NUM_BANDS), 255, 255));
}
}
}

void purpleBars(int band, int barHeight) {
int xStart = BAR_WIDTH * band;
for (int x = xStart; x < xStart + BAR_WIDTH; x++) {
for (int y = TOP; y >= TOP - barHeight; y--) {
matrix->drawPixel(x, y, ColorFromPalette(purplePal, y * (255 / (barHeight + 1))));
}
}
}

void changingBars(int band, int barHeight) {
int xStart = BAR_WIDTH * band;
for (int x = xStart; x < xStart + BAR_WIDTH; x++) {
for (int y = TOP; y >= TOP - barHeight; y--) {
matrix->drawPixel(x, y, CHSV(y * (255 / kMatrixHeight) + colorTimer, 255, 255));
}
}
}

void centerBars(int band, int barHeight) {
int xStart = BAR_WIDTH * band;
for (int x = xStart; x < xStart + BAR_WIDTH; x++) {
if (barHeight % 2 == 0) barHeight--;
int yStart = ((kMatrixHeight - barHeight) / 2 );
for (int y = yStart; y <= (yStart + barHeight); y++) {
int colorIndex = constrain((y - yStart) * (255 / barHeight), 0, 255);
matrix->drawPixel(x, y, ColorFromPalette(heatPal, colorIndex));
}
}
}

void whitePeak(int band) {
int xStart = BAR_WIDTH * band;
int peakHeight = TOP - peak[band] - 1;
for (int x = xStart; x < xStart + BAR_WIDTH; x++) {
matrix->drawPixel(x, peakHeight, CHSV(0,0,255));
}
}

void outrunPeak(int band) {
int xStart = BAR_WIDTH * band;
int peakHeight = TOP - peak[band] - 1;
for (int x = xStart; x < xStart + BAR_WIDTH; x++) {
matrix->drawPixel(x, peakHeight, ColorFromPalette(outrunPal, peakHeight * (255 / kMatrixHeight)));
}
}

void waterfall(int band) {
int xStart = BAR_WIDTH * band;
double highestBandValue = 60000; // Set this to calibrate your waterfall

// Draw bottom line
for (int x = xStart; x < xStart + BAR_WIDTH; x++) {
matrix->drawPixel(x, 0, CHSV(constrain(map(bandValues[band],0,highestBandValue,160,0),0,160), 255, 255));
}

// Move screen up starting at 2nd row from top
if (band == NUM_BANDS - 1){
for (int y = kMatrixHeight - 2; y >= 0; y--) {
for (int x = 0; x < kMatrixWidth; x++) {
int pixelIndexY = matrix->XY(x, y + 1);
int pixelIndex = matrix->XY(x, y);
leds[pixelIndexY] = leds[pixelIndex];
}
}
}
}

rlsieben · February 3, 2025, 4:21pm

¡Bienvenidos al foro!
Publique el código en el formateador de código:
--------------------------------------------↓

Y, por favor, publique los tres errores que tiene.

xfpd · February 3, 2025, 6:28pm

rodohec · February 4, 2025, 7:22pm

escribe o pega el código aquí
```Compute FFT
FFT. dcRemoval();
FFT.[|'windowing'D(FFT_WIN_TYP_HAMMING, FFT_FORWARD):
FFT. ('Compute') (FFT_FORWARD);
FFT. ('ComplexToMagnitude')

MaximoEsfuerzo · February 4, 2025, 10:12pm

Esto no es un chat, por favor lee las Normas (que encuentras como primer posteo en cada sección) y presenta tu tema como corresponde.

Saludos

Surbyte · February 5, 2025, 4:11am

Moderador
Doble posteo.
Tengo 3 errores en el audio spectrum analyzer con esp32.._gaNDQwNzUwMjYzLjE3Mzg3Mjg1Njg._ga_NEXN8H46L5MTczODcyODU2Ny4xLjEuMTczODcyODYyMi4wLjAuOTYyMDMzMDQ0
Hilo cerrado y agregado al link indicado.
Si repites esto serás sancionado.
En el otro link, debes editar el código como se se te pidió.

rodohec · February 4, 2025, 8:12am

	FFT
139	FFT. dcRemoval();
140
141
142
143

FFT.[|'windowing'D(FFT_WIN_TYP_HAMMING, FFT_FORWARD):

FFT. ('Compute') (FFT_FORWARD);

FFT. ('ComplexToMagnitude')

UKHeliBob · February 4, 2025, 8:13am

Su publicacion se MUEVE a su ubicacion actual ya que es mas adecuada.

Surbyte · February 5, 2025, 4:19am

Moderador.
Triple posteo.
Movido al link donde ya te había advertido.
Tengo 3 errores en el audio spectrum analyzer con esp32.._gaNDQwNzUwMjYzLjE3Mzg3Mjg1Njg._ga_NEXN8H46L5MTczODcyODU2Ny4xLjEuMTczODcyOTE1NC4wLjAuOTYyMDMzMDQ0

rodohec · February 4, 2025, 8:06am

_FFT_VU | Arduino IDE 2.3.4
Editar
Sketch
Herramientas
Ayuda
ESP32 Dev Module
ESP32_FFT_VU.ino
135
136
}
137
138
// Compute FFT
139
FFT. dcRemoval();
140
141
142
143
FFT.[|'windowing'D(FFT_WIN_TYP_HAMMING, FFT_FORWARD):
FFT. ('Compute') (FFT_FORWARD);
FFT. ('ComplexToMagnitude') ();
Salida
Usando librería arduinoFFT con versión 2.0.4 en la carpeta: C: \Users\USER\Documents \Arduino\librai
Usando librería EasyButton con versión 2.0.3 en la carpeta: C: (Users\USER\Documents\Arduino\libra
Usando librería MegunoLink con versión 1.43 en la carpeta: C: \Users\USER\Documents \Arduino\librar:
Usando librería Ticker con versión 3.1.1 en la carpeta: C: \Users|USER\AppData\Local\Arduino15|pac
exit status 1
Compilation error. expected unqualified id before '( token
Compilation error: expected unqualified-id before
COPIAR MENSAJES DE ERROR
Lín. 140, col. 7
ESP32 Dev Module en COM11
ESP
다
18:12
3/02/2025

UKHeliBob · February 4, 2025, 8:07am

Su publicacion se MUEVE a su ubicacion actual ya que es mas adecuada.

Surbyte · February 5, 2025, 4:21am

Moderador
3 posteos cruzados.
Tienes 1 dia de baneo.
Lee tu correo privado arriba a la derecha.

system · August 4, 2025, 4:21am

This topic was automatically closed 180 days after the last reply. New replies are no longer allowed.

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Tengo 3 errores en el audio spectrum analyzer con esp32

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