Led was not declared in this scope (fastled)

[lepetidozo]

hello,
I don't know which topic is it sorry for confusing
I used fastled for a project but it says an error

#include <WiFi.h>
#include <WebServer.h>
#include <FastLED.h>
#include <DNSServer.h>
#include <Preferences.h>  // Pour la persistence des paramètres
#include "site final.html"


// ==== CONFIG =====
#define LED_PIN     12
#define NUM_LEDS    30
#define LED_TYPE    WS2812B
#define COLOR_ORDER GRB
CRGB leds[NUM_LEDS];

const char* ap_ssid = "ESP32-LED";
const char* ap_password = "12345678";

WebServer server(80);
DNSServer dnsServer;
Preferences preferences;  // Objet pour le stockage persistant

// ==== VARIABLES ====
CRGB selectedColor = CRGB::Red;
int brightness = 128;
String currentEffect = "off";
unsigned long speed = 150;

// Variables d'animation
unsigned long previousMillis = 0;
uint16_t rainbowPosition = 0;
uint8_t serpentPosition = 0;

// ==== HTML PAGE ====
const char MAIN_page[] PROGMEM = "site final.html";

// ==== FONCTIONS DE STOCKAGE ====
void saveSettings() {
  preferences.begin("ledctrl", true);
  // Convertir CRGB en uint32_t (0xRRGGBB)
  uint32_t rgbColor = (selectedColor.r << 16) | (selectedColor.g << 8) | selectedColor.b;
  preferences.putUInt("color", rgbColor);
  preferences.putUInt("brightness", brightness);
  preferences.putString("effect", currentEffect.c_str());
  preferences.putULong("speed", speed);
  preferences.end();
}

void loadSettings() {
  preferences.begin("ledctrl", true);
  uint32_t rgbColor = preferences.getUInt("color", 0xFF0000); // Rouge par défaut
  selectedColor = CRGB((rgbColor >> 16) & 0xFF, (rgbColor >> 8) & 0xFF, rgbColor & 0xFF);
  brightness = preferences.getUInt("brightness", 128);
  currentEffect = preferences.getString("effect", "off");
  speed = preferences.getULong("speed", 150);
  if (currentEffect == "rainbowAll" && preferences.getString("effect", "") == "rainbow") {
    currentEffect = "rainbow";
  }
  preferences.end();
}

// ==== HANDLERS ====
void handleRoot() {
  server.send(200, "text/html", MAIN_page);
}

void handleSetColor() {
  if (server.hasArg("color")) {
    String hex = server.arg("color");
    hex.remove(0, 1); // Retire le #
    long rgb = strtol(hex.c_str(), NULL, 16);
    selectedColor = CRGB((rgb >> 16) & 0xFF, (rgb >> 8) & 0xFF, rgb & 0xFF);
    if (currentEffect == "all") allOn();
    saveSettings();
    server.send(200, "text/plain", "OK");
  }
}

void handleSetBrightness() {
  if (server.hasArg("brightness")) {
    brightness = server.arg("brightness").toInt();
    FastLED.setBrightness(brightness);
    FastLED.show();
    saveSettings();  // Sauvegarde après modification
    server.send(200, "text/plain", "OK");
  }
}

void handleSetSpeed() {
  if (server.hasArg("speed")) {
    speed = map(server.arg("speed").toInt(), 5, 1000, 1000, 5);
    saveSettings();  // Sauvegarde après modification
    server.send(200, "text/plain", "OK");
  }
}

void handleSetEffect() {
  if (server.hasArg("effect")) {
    String newEffect = server.arg("effect");
    
    // Gestion spéciale pour le mode Rainbow
    if (currentEffect == "rainbow" && newEffect == "rainbowAll") {
      currentEffect = "rainbowAll";
    } 
    else if (currentEffect == "rainbowAll" && newEffect == "rainbow") {
      currentEffect = "rainbow";
    }
    else {
      currentEffect = newEffect;
    }

    // Applique l'effet
    if (currentEffect == "off") allOff();
    else if (currentEffect == "all") allOn();
    
    saveSettings();
    server.send(200, "text/plain", "OK");
  }
}

void handleGetSettings() {
  String json = "{";
  json += "\"color\":\"" + String(selectedColor.r) + "," + String(selectedColor.g) + "," + String(selectedColor.b) + "\",";
  json += "\"brightness\":" + String(brightness) + ",";
  json += "\"effect\":\"" + currentEffect + "\",";
  json += "\"speed\":" + String(speed);
  json += "}";
  server.send(200, "application/json", json);
}

void handleNotFound() {
  server.sendHeader("Location", String("http://") + server.client().localIP().toString(), true);
  server.send(302, "text/plain", "");
}

// ==== LED EFFECTS ==== 
// (Vos fonctions d'effets restent inchangées)
void allOn() {
  fill_solid(leds, NUM_LEDS, selectedColor);
  FastLED.show();
}

void allOff() {
  fill_solid(leds, NUM_LEDS, CRGB::Black);
  FastLED.show();
}

void serpentAnimation() { 
  unsigned long currentMillis = millis();
  if (currentMillis - previousMillis >= speed) {
    previousMillis = currentMillis;
    
    fill_solid(leds, NUM_LEDS, CRGB::Black);
    for (uint8_t i = 0; i < NUM_LEDS; i++) {
      if ((i + serpentPosition) % 6 < 3) {
        leds[i] = selectedColor;
      }
    }
    FastLED.show();
    serpentPosition = (serpentPosition + 1) % 6;
  }
}

void rainbowAnimation() { 
  unsigned long currentMillis = millis();
  // Multiply speed by 10 only for rainbow effect
  if (currentMillis - previousMillis >= (speed / 20)) {
    previousMillis = currentMillis;
    
    for (uint8_t i = 0; i < NUM_LEDS; i++) {
      leds[i] = Wheel(((i * 256 / NUM_LEDS) + rainbowPosition) & 255);
    }
    FastLED.show();
    rainbowPosition = (rainbowPosition + 1) % 256;
  }
}

CRGB Wheel(byte WheelPos) {
  WheelPos = 255 - WheelPos;
  if(WheelPos < 85) {
    return CRGB(255 - WheelPos * 3, 0, WheelPos * 3);
  } else if(WheelPos < 170) {
    WheelPos -= 85;
    return CRGB(0, WheelPos * 3, 255 - WheelPos * 3);
  } else {
    WheelPos -= 170;
    return CRGB(WheelPos * 3, 255 - WheelPos * 3, 0);
  }
}

void rainbowAll() {
  static unsigned long lastUpdate = 0;
  static uint16_t hue = 0;  // Using 16-bit for smoother transitions
  
  // Calculate time since last update (non-blocking)
  unsigned long currentMillis = millis();
  if (currentMillis - lastUpdate >= 30) {  // Fixed refresh rate for smoothness
    lastUpdate = currentMillis;
    
    // Increment hue with speed adjustment (16-bit for precision)
    uint8_t hueIncrement = map(speed, 5, 1000, 1, 120);
    hue += hueIncrement;
    // Apply to all LEDs
    fill_solid(leds, NUM_LEDS, CHSV(hue >> 8, 255, 255));  // Use upper 8 bits
    FastLED.show();
    EVERY_N_MILLISECONDS(5) {}
  }
}

// ==== SETUP / LOOP ====
void setup() {
   Serial.begin(115200);
  
  // Initialize FastLED FIRST
  FastLED.addLeds<LED_TYPE, LED_PIN, COLOR_ORDER>(leds, NUM_LEDS).setCorrection(TypicalLEDStrip);
  FastLED.setBrightness(brightness);
  
  // Then load settings
  loadSettings();
  
  // Appliquer l'effet au démarrage
  if (currentEffect == "off") allOff();
  else if (currentEffect == "all") allOn();

  WiFi.softAP(ap_ssid, ap_password);
  dnsServer.start(53, "*", WiFi.softAPIP());

  server.on("/", handleRoot);
  server.on("/setColor", handleSetColor);
  server.on("/setBrightness", handleSetBrightness);
  server.on("/setSpeed", handleSetSpeed);
  server.on("/setEffect", handleSetEffect);
  server.on("/getSettings", handleGetSettings);
  server.onNotFound(handleNotFound);
  server.begin();
}

void loop() {
  dnsServer.processNextRequest();
  server.handleClient();

  if (currentEffect == "serpent") serpentAnimation();
  else if (currentEffect == "rainbow") rainbowAnimation();
  else if (currentEffect == "rainbowAll") rainbowAll();
}`

here the html

R"rawliteral(
<!DOCTYPE html>
<html lang="fr">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>LED Controller</title>
  <style>
    :root {
  --active-color: #1e88e5;
}

body {
  font-family: 'Calibri';
  background: #121212;
  color: white;
  display: flex;
  flex-direction: column;
  align-items: center;
  min-height: 100vh;
  margin: 0;
  padding: 20px;
}

.slider-container {
  width: 80%;
  max-width: 400px;
  margin: 20px 0;
}

.slider-label {
  display: flex;
  justify-content: space-between;
  margin-bottom: 10px;
  font-weight: bold;
}

input[type="range"].styled-slider {
  -webkit-appearance: none;
  width: 100%;
  height: 10px;
  background: #ddd;
  border-radius: 5px;
  outline: none;
}

input[type="range"].styled-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  background: #333;
  border-radius: 50%;
  cursor: pointer;
  transition: background 0.2s ease;
}

input[type="range"].styled-slider:hover::-webkit-slider-thumb {
  background: #555;
}

.effects-panel {
  display: flex;
  gap: 15px;
  margin-top: 40px;
  flex-wrap: wrap;
  justify-content: center;
}

.effect-btn {
  background: #333;
  color: white;
  border: none;
  padding: 12px 25px;
  border-radius: 30px;
  font-size: 16px;
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: bold;
  transition: all 0.3s;
  box-shadow: 0 4px 8px rgba(0,0,0,0.3);
  min-width: 120px;
  text-align: center;
}

.effect-btn.active {
  background: var(--active-color);
  box-shadow: 0 0 15px rgba(30, 136, 229, 0.5);
}

.color-preview {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  border: 3px solid #444;
  background-color: #ff0000;
  box-shadow: 0 0 15px rgba(0,0,0,0.5);
  margin: 20px auto;
}

.rainbow-slider {
  width: 80%;
  max-width: 300px;
  margin: 0 auto;
}

.rainbow-slider input[type="range"] {
  -webkit-appearance: none;
  width: 100%;
  height: 15px;
  border-radius: 10px;
  background: linear-gradient(to right, 
    #ff0000, #ff8000, #ffff00, #80ff00, 
    #00ff00, #00ff80, #00ffff, #0080ff, 
    #0000ff, #8000ff, #ff00ff, #ff0080, #ff0000);
  outline: none;
  margin: 15px 0;
}

.rainbow-slider input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 25px;
  height: 25px;
  border-radius: 50%;
  background: white;
  border: 3px solid #121212;
  cursor: pointer;
  box-shadow: 0 0 5px rgba(0,0,0,0.5);
}
    #rainbowBtn.active[data-mode="rainbowAll"] {
  background: linear-gradient(90deg, 
    #ff0000, #ff8000, #ffff00, #80ff00,
    #00ff00, #00ff80, #00ffff, #0080ff,
    #0000ff, #8000ff, #ff00ff, #ff0080);
}

#rainbowBtn.active[data-mode="rainbow"] {
  background: linear-gradient(90deg, 
    #ff0000, #ffff00, #00ff00, #00ffff, 
    #0000ff, #ff00ff);
}
  </style>
</head>
<body>
  <h1>CONTROL PANEL</h1>
  <div id="connectionStatus" style="position: fixed; top: 10px; right: 10px; background: #4CAF50; color: white; padding: 5px 10px; border-radius: 20px; display: none;">
    Connecté
  <div class="rainbow-slider">
  <div class="color-preview" id="colorPreview"></div>
  <input type="range" id="hueSlider" min="0" max="360" value="0">
  <div class="slider-label">
    <span>COULEUR</span>
  </div>
</div>

<div class="slider-container">
  <div class="slider-label">
    <span>LUMINOSITÉ</span>
    <span id="brightnessValue">50%</span>
  </div>
  <input type="range" class="styled-slider" id="brightnessSlider" min="0" max="255" value="128">
</div>

<div class="slider-container">
  <div class="slider-label">
    <span>VITESSE</span>
  </div>
  <input type="range" class="styled-slider" id="speedSlider" min="5" max="1000" value="150">
</div>

<div class="effects-panel">
  <button class="effect-btn" id="serpentBtn">SERPENT</button>
  <button class="effect-btn" id="rainbowBtn" data-mode="rainbowAll">RAINBOW</button>
  <button class="effect-btn" id="allBtn">ON</button>
  <button class="effect-btn" id="offBtn">OFF</button>
</div>
  <script>
    // Éléments DOM
    const hueSlider = document.getElementById('hueSlider');
    const brightnessSlider = document.getElementById('brightnessSlider');
    const speedSlider = document.getElementById('speedSlider');
    const colorPreview = document.getElementById('colorPreview');
    const brightnessValue = document.getElementById('brightnessValue');
    const connectionStatus = document.getElementById('connectionStatus');

    // Conversion RGB vers Teinte (HSV)
    function rgbToHue(r, g, b) {
      r /= 255, g /= 255, b /= 255;
      const max = Math.max(r, g, b), min = Math.min(r, g, b);
      let h = 0;
      if (max === min) h = 0;
      else if (max === r) h = (60 * ((g - b) / (max - min)) + 360) % 360;
      else if (max === g) h = (60 * ((b - r) / (max - min)) + 120) % 360;
      else h = (60 * ((r - g) / (max - min)) + 240) % 360;
      return Math.round(h);
    }
    // Remplacez la gestion du bouton Rainbow par ceci :
document.getElementById('rainbowBtn').addEventListener('click', function() {
  const isActive = this.classList.contains('active');
  const currentEffect = isActive ? 'off' : 
                      (this.dataset.mode === 'rainbow' ? 'rainbowAll' : 'rainbow');
  
  // Bascule le mode pour le prochain clic
  this.dataset.mode = (this.dataset.mode === 'rainbow' ? 'rainbowAll' : 'rainbow');
  
  setEffect(currentEffect);
});

// Modifiez setEffect() pour gérer le mode
function setEffect(effect) {
  fetch('/setEffect?effect=' + effect)
    .then(() => {
      const rainbowBtn = document.getElementById('rainbowBtn');
      
      // Réinitialise tous les boutons
      document.querySelectorAll('.effect-btn').forEach(btn => {
        btn.classList.remove('active');
      });

      // Met à jour l'état actif
      if (effect === 'rainbow' || effect === 'rainbowAll') {
        rainbowBtn.classList.add('active');
        rainbowBtn.dataset.mode = (effect === 'rainbow' ? 'rainbowAll' : 'rainbow');
      } else {
        document.getElementById(effect + 'Btn').classList.add('active');
      }
    });
}

    // Charger les paramètres depuis l'ESP32
    function loadSettings() {
      fetch('/getSettings')
        .then(response => response.json())
        .then(settings => {
          const [r, g, b] = settings.color.split(',').map(Number);
          const hue = rgbToHue(r, g, b);
          hueSlider.value = hue;
          brightnessSlider.value = settings.brightness;
          speedSlider.value = settings.speed;
          updateColor();
          updateSliderValues();
          document.querySelectorAll('.effect-btn').forEach(btn => {
            btn.classList.remove('active');
            if (btn.id === settings.effect + 'Btn') btn.classList.add('active');
          });
          showConnectionStatus();
        });
    }

    function showConnectionStatus() {
      connectionStatus.style.display = 'block';
      setTimeout(() => connectionStatus.style.display = 'none', 2000);
    }

    // Éléments DOM
const hueSlider = document.getElementById('hueSlider');
const brightnessSlider = document.getElementById('brightnessSlider');
const speedSlider = document.getElementById('speedSlider');
const colorPreview = document.getElementById('colorPreview');
const brightnessValue = document.getElementById('brightnessValue');

// Conversion en pourcentage
function toPercent(value, min, max) {
  return Math.round(((value - min) / (max - min)) * 100);
}

// Mise à jour des valeurs en %
function updateSliderValues() {
  brightnessValue.textContent = toPercent(brightnessSlider.value, 0, 255) + '%';
}

// Conversion teinte vers RGB
function hueToRgb(h) {
  h /= 60;
  const c = 255;
  const x = (1 - Math.abs(h % 2 - 1)) * 255;
  let r, g, b;
  
  if (h >= 0 && h < 1) { [r,g,b] = [c,x,0]; }
  else if (h < 2) { [r,g,b] = [x,c,0]; }
  else if (h < 3) { [r,g,b] = [0,c,x]; }
  else if (h < 4) { [r,g,b] = [0,x,c]; }
  else if (h < 5) { [r,g,b] = [x,0,c]; }
  else { [r,g,b] = [c,0,x]; }
  
  return {r: Math.round(r), g: Math.round(g), b: Math.round(b)};
}

// Mise à jour couleur
function updateColor() {
  const hue = hueSlider.value;
  const color = hueToRgb(hue);
  const hex = `#${color.r.toString(16).padStart(2,'0')}${color.g.toString(16).padStart(2,'0')}${color.b.toString(16).padStart(2,'0')}`;
  
  colorPreview.style.backgroundColor = `rgb(${color.r}, ${color.g}, ${color.b})`;
  colorPreview.style.boxShadow = `0 0 20px rgba(${color.r}, ${color.g}, ${color.b}, 0.7)`;
  fetch('/setColor?color=' + encodeURIComponent(hex));
  updateSliderValues();
}

// Écouteurs d'événements
hueSlider.addEventListener('input', updateColor);
brightnessSlider.addEventListener('input', () => {
  updateSliderValues();
  fetch('/setBrightness?brightness=' + brightnessSlider.value);
});
speedSlider.addEventListener('input', () => {
  updateSliderValues();
  fetch('/setSpeed?speed=' + speedSlider.value);
});

// Gestion des effets
function setEffect(effect) {
  fetch('/setEffect?effect=' + effect)
    .then(() => {
      document.querySelectorAll('.effect-btn').forEach(btn => {
        btn.classList.remove('active');
        if (btn.id === effect + 'Btn') btn.classList.add('active');
      });
    });
}

// Assignation des événements aux boutons
document.getElementById('serpentBtn').addEventListener('click', () => setEffect('serpent'));
document.getElementById('rainbowBtn').addEventListener('click', () => setEffect('rainbow'));
document.getElementById('rainbowAllBtn').addEventListener('click', () => setEffect('rainbowAll'));
document.getElementById('allBtn').addEventListener('click', () => setEffect('all'));
document.getElementById('offBtn').addEventListener('click', () => setEffect('off'));

// Initialisation
updateColor();
updateSliderValues();
setEffect('off');
    document.addEventListener('DOMContentLoaded', loadSettings);
  </script>
</body>
</html>
)rawliteral"

thank you for your help

[Perehama]

Please copy and paste the exact error message.

[sonofcy]

Copy the verbose error log and paste into code tags like the source.

[ruilviana]

Where did you declare this variable? "leds"

" fill_solid(leds, NUM_LEDS, selectedColor); "

You declared this variable:
CRGB leds[NUM_LEDS];

[sonofcy]

What board is this for

[lepetidozo]

alright thank you for your responses

this code is for an ESP32 devkit v4

here the error :

C:\Users\ordi2405239\Desktop\beandeauLed/site final.html:1:1: error: expected unqualified-id before string constant
    1 | R"rawliteral(
      | ^~~~~~~~~~~~~
    2 | <!DOCTYPE html>
      | ~~~~~~~~~~~~~~~
    3 | <html lang="fr">
      | ~~~~~~~~~~~~~~~~
    4 | <head>
      | ~~~~~~
    5 |   <meta charset="UTF-8">
      |   ~~~~~~~~~~~~~~~~~~~~~~
    6 |   <meta name="viewport" content="width=device-width, initial-scale=1.0">
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    7 |   <title>LED Controller</title>
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    8 |   <style>
      |   ~~~~~~~
    9 |     :root {
      |     ~~~~~~~
   10 |   --active-color: #1e88e5;
      |   ~~~~~~~~~~~~~~~~~~~~~~~~
   11 | }
      | ~
   12 | 
      |  
   13 | body {
      | ~~~~~~
   14 |   font-family: 'Calibri';
      |   ~~~~~~~~~~~~~~~~~~~~~~~
   15 |   background: #121212;
      |   ~~~~~~~~~~~~~~~~~~~~
   16 |   color: white;
      |   ~~~~~~~~~~~~~
   17 |   display: flex;
      |   ~~~~~~~~~~~~~~
   18 |   flex-direction: column;
      |   ~~~~~~~~~~~~~~~~~~~~~~~
   19 |   align-items: center;
      |   ~~~~~~~~~~~~~~~~~~~~
   20 |   min-height: 100vh;
      |   ~~~~~~~~~~~~~~~~~~
   21 |   margin: 0;
      |   ~~~~~~~~~~
   22 |   padding: 20px;
      |   ~~~~~~~~~~~~~~
   23 | }
      | ~
   24 | 
      |  
   25 | .slider-container {
      | ~~~~~~~~~~~~~~~~~~~
   26 |   width: 80%;
      |   ~~~~~~~~~~~
   27 |   max-width: 400px;
      |   ~~~~~~~~~~~~~~~~~
   28 |   margin: 20px 0;
      |   ~~~~~~~~~~~~~~~
   29 | }
      | ~
   30 | 
      |  
   31 | .slider-label {
      | ~~~~~~~~~~~~~~~
   32 |   display: flex;
      |   ~~~~~~~~~~~~~~
   33 |   justify-content: space-between;
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   34 |   margin-bottom: 10px;
      |   ~~~~~~~~~~~~~~~~~~~~
   35 |   font-weight: bold;
      |   ~~~~~~~~~~~~~~~~~~
   36 | }
      | ~
   37 | 
      |  
   38 | input[type="range"].styled-slider {
      | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   39 |   -webkit-appearance: none;
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~
   40 |   width: 100%;
      |   ~~~~~~~~~~~~
   41 |   height: 10px;
      |   ~~~~~~~~~~~~~
   42 |   background: #ddd;
      |   ~~~~~~~~~~~~~~~~~
   43 |   border-radius: 5px;
      |   ~~~~~~~~~~~~~~~~~~~
   44 |   outline: none;
      |   ~~~~~~~~~~~~~~
   45 | }
      | ~
   46 | 
      |  
   47 | input[type="range"].styled-slider::-webkit-slider-thumb {
      | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   48 |   -webkit-appearance: none;
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~
   49 |   appearance: none;
      |   ~~~~~~~~~~~~~~~~~
   50 |   width: 20px;
      |   ~~~~~~~~~~~~
   51 |   height: 20px;
      |   ~~~~~~~~~~~~~
   52 |   background: #333;
      |   ~~~~~~~~~~~~~~~~~
   53 |   border-radius: 50%;
      |   ~~~~~~~~~~~~~~~~~~~
   54 |   cursor: pointer;
      |   ~~~~~~~~~~~~~~~~
   55 |   transition: background 0.2s ease;
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   56 | }
      | ~
   57 | 
      |  
   58 | input[type="range"].styled-slider:hover::-webkit-slider-thumb {
      | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   59 |   background: #555;
      |   ~~~~~~~~~~~~~~~~~
   60 | }
      | ~
   61 | 
      |  
   62 | .effects-panel {
      | ~~~~~~~~~~~~~~~~
   63 |   display: flex;
      |   ~~~~~~~~~~~~~~
   64 |   gap: 15px;
      |   ~~~~~~~~~~
   65 |   margin-top: 40px;
      |   ~~~~~~~~~~~~~~~~~
   66 |   flex-wrap: wrap;
      |   ~~~~~~~~~~~~~~~~
   67 |   justify-content: center;
      |   ~~~~~~~~~~~~~~~~~~~~~~~~
   68 | }
      | ~
   69 | 
      |  
   70 | .effect-btn {
      | ~~~~~~~~~~~~~
   71 |   background: #333;
      |   ~~~~~~~~~~~~~~~~~
   72 |   color: white;
      |   ~~~~~~~~~~~~~
   73 |   border: none;
      |   ~~~~~~~~~~~~~
   74 |   padding: 12px 25px;
      |   ~~~~~~~~~~~~~~~~~~~
   75 |   border-radius: 30px;
      |   ~~~~~~~~~~~~~~~~~~~~
   76 |   font-size: 16px;
      |   ~~~~~~~~~~~~~~~~
   77 |   cursor: pointer;
      |   ~~~~~~~~~~~~~~~~
   78 |   text-transform: uppercase;
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~~
   79 |   letter-spacing: 1px;
      |   ~~~~~~~~~~~~~~~~~~~~
   80 |   font-weight: bold;
      |   ~~~~~~~~~~~~~~~~~~
   81 |   transition: all 0.3s;
      |   ~~~~~~~~~~~~~~~~~~~~~
   82 |   box-shadow: 0 4px 8px rgba(0,0,0,0.3);
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   83 |   min-width: 120px;
      |   ~~~~~~~~~~~~~~~~~
   84 |   text-align: center;
      |   ~~~~~~~~~~~~~~~~~~~
   85 | }
      | ~
   86 | 
      |  
   87 | .effect-btn.active {
      | ~~~~~~~~~~~~~~~~~~~~
   88 |   background: var(--active-color);
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   89 |   box-shadow: 0 0 15px rgba(30, 136, 229, 0.5);
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   90 | }
      | ~
   91 | 
      |  
   92 | .color-preview {
      | ~~~~~~~~~~~~~~~~
   93 |   width: 80px;
      |   ~~~~~~~~~~~~
   94 |   height: 80px;
      |   ~~~~~~~~~~~~~
   95 |   border-radius: 50%;
      |   ~~~~~~~~~~~~~~~~~~~
   96 |   border: 3px solid #444;
      |   ~~~~~~~~~~~~~~~~~~~~~~~
   97 |   background-color: #ff0000;
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~~
   98 |   box-shadow: 0 0 15px rgba(0,0,0,0.5);
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   99 |   margin: 20px auto;
      |   ~~~~~~~~~~~~~~~~~~
  100 | }
      | ~
  101 | 
      |  
  102 | .rainbow-slider {
      | ~~~~~~~~~~~~~~~~~
  103 |   width: 80%;
      |   ~~~~~~~~~~~
  104 |   max-width: 300px;
      |   ~~~~~~~~~~~~~~~~~
  105 |   margin: 0 auto;
      |   ~~~~~~~~~~~~~~~
  106 | }
      | ~
  107 | 
      |  
  108 | .rainbow-slider input[type="range"] {
      | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  109 |   -webkit-appearance: none;
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~
  110 |   width: 100%;
      |   ~~~~~~~~~~~~
  111 |   height: 15px;
      |   ~~~~~~~~~~~~~
  112 |   border-radius: 10px;
      |   ~~~~~~~~~~~~~~~~~~~~
  113 |   background: linear-gradient(to right,
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  114 |     #ff0000, #ff8000, #ffff00, #80ff00,
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  115 |     #00ff00, #00ff80, #00ffff, #0080ff,
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  116 |     #0000ff, #8000ff, #ff00ff, #ff0080, #ff0000);
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  117 |   outline: none;
      |   ~~~~~~~~~~~~~~
  118 |   margin: 15px 0;
      |   ~~~~~~~~~~~~~~~
  119 | }
      | ~
  120 | 
      |  
  121 | .rainbow-slider input[type="range"]::-webkit-slider-thumb {
      | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  122 |   -webkit-appearance: none;
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~
  123 |   width: 25px;
      |   ~~~~~~~~~~~~
  124 |   height: 25px;
      |   ~~~~~~~~~~~~~
  125 |   border-radius: 50%;
      |   ~~~~~~~~~~~~~~~~~~~
  126 |   background: white;
      |   ~~~~~~~~~~~~~~~~~~
  127 |   border: 3px solid #121212;
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~~
  128 |   cursor: pointer;
      |   ~~~~~~~~~~~~~~~~
  129 |   box-shadow: 0 0 5px rgba(0,0,0,0.5);
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  130 | }
      | ~
  131 |     #rainbowBtn.active[data-mode="rainbowAll"] {
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  132 |   background: linear-gradient(90deg,
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  133 |     #ff0000, #ff8000, #ffff00, #80ff00,
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  134 |     #00ff00, #00ff80, #00ffff, #0080ff,
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  135 |     #0000ff, #8000ff, #ff00ff, #ff0080);
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  136 | }
      | ~
  137 | 
      |  
  138 | #rainbowBtn.active[data-mode="rainbow"] {
      | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  139 |   background: linear-gradient(90deg,
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  140 |     #ff0000, #ffff00, #00ff00, #00ffff,
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  141 |     #0000ff, #ff00ff);
      |     ~~~~~~~~~~~~~~~~~~
  142 | }
      | ~
  143 |   </style>
      |   ~~~~~~~~
  144 | </head>
      | ~~~~~~~
  145 | <body>
      | ~~~~~~
  146 |   <h1>CONTROL PANEL</h1>
      |   ~~~~~~~~~~~~~~~~~~~~~~
  147 |   <div id="connectionStatus" style="position: fixed; top: 10px; right: 10px; background: #4CAF50; color: white; padding: 5px 10px; border-radius: 20px; display: none;">
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  148 |     Connecté
      |     ~~~~~~~~
  149 |   <div class="rainbow-slider">
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  150 |   <div class="color-preview" id="colorPreview"></div>
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  151 |   <input type="range" id="hueSlider" min="0" max="360" value="0">
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  152 |   <div class="slider-label">
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~~
  153 |     <span>COULEUR</span>
      |     ~~~~~~~~~~~~~~~~~~~~
  154 |   </div>
      |   ~~~~~~
  155 | </div>
      | ~~~~~~
  156 | 
      |  
  157 | <div class="slider-container">
      | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  158 |   <div class="slider-label">
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~~
  159 |     <span>LUMINOSITÉ</span>
      |     ~~~~~~~~~~~~~~~~~~~~~~~
  160 |     <span id="brightnessValue">50%</span>
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  161 |   </div>
      |   ~~~~~~
  162 |   <input type="range" class="styled-slider" id="brightnessSlider" min="0" max="255" value="128">
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  163 | </div>
      | ~~~~~~
  164 | 
      |  
  165 | <div class="slider-container">
      | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  166 |   <div class="slider-label">
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~~
  167 |     <span>VITESSE</span>
      |     ~~~~~~~~~~~~~~~~~~~~
  168 |   </div>
      |   ~~~~~~
  169 |   <input type="range" class="styled-slider" id="speedSlider" min="5" max="1000" value="150">
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  170 | </div>
      | ~~~~~~
  171 | 
      |  
  172 | <div class="effects-panel">
      | ~~~~~~~~~~~~~~~~~~~~~~~~~~~
  173 |   <button class="effect-btn" id="serpentBtn">SERPENT</button>
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  174 |   <button class="effect-btn" id="rainbowBtn" data-mode="rainbowAll">RAINBOW</button>
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  175 |   <button class="effect-btn" id="allBtn">ON</button>
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  176 |   <button class="effect-btn" id="offBtn">OFF</button>
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  177 | </div>
      | ~~~~~~
  178 |   <script>
      |   ~~~~~~~~
  179 |     // Éléments DOM
      |     ~~~~~~~~~~~~~~~
  180 |     const hueSlider = document.getElementById('hueSlider');
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  181 |     const brightnessSlider = document.getElementById('brightnessSlider');
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  182 |     const speedSlider = document.getElementById('speedSlider');
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  183 |     const colorPreview = document.getElementById('colorPreview');
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  184 |     const brightnessValue = document.getElementById('brightnessValue');
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  185 |     const connectionStatus = document.getElementById('connectionStatus');
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  186 | 
      |  
  187 |     // Conversion RGB vers Teinte (HSV)
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  188 |     function rgbToHue(r, g, b) {
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  189 |       r /= 255, g /= 255, b /= 255;
      |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  190 |       const max = Math.max(r, g, b), min = Math.min(r, g, b);
      |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  191 |       let h = 0;
      |       ~~~~~~~~~~
  192 |       if (max === min) h = 0;
      |       ~~~~~~~~~~~~~~~~~~~~~~~
  193 |       else if (max === r) h = (60 * ((g - b) / (max - min)) + 360) % 360;
      |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  194 |       else if (max === g) h = (60 * ((b - r) / (max - min)) + 120) % 360;
      |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  195 |       else h = (60 * ((r - g) / (max - min)) + 240) % 360;
      |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  196 |       return Math.round(h);
      |       ~~~~~~~~~~~~~~~~~~~~~
  197 |     }
      |     ~
  198 |     // Remplacez la gestion du bouton Rainbow par ceci :
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  199 | document.getElementById('rainbowBtn').addEventListener('click', function() {
      | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  200 |   const isActive = this.classList.contains('active');
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  201 |   const currentEffect = isActive ? 'off' :
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  202 |                       (this.dataset.mode === 'rainbow' ? 'rainbowAll' : 'rainbow');
      |                       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  203 | 
      |  
  204 |   // Bascule le mode pour le prochain clic
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  205 |   this.dataset.mode = (this.dataset.mode === 'rainbow' ? 'rainbowAll' : 'rainbow');
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  206 | 
      |  
  207 |   setEffect(currentEffect);
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~
  208 | });
      | ~~~
  209 | 
      |  
  210 | // Modifiez setEffect() pour gérer le mode
      | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  211 | function setEffect(effect) {
      | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  212 |   fetch('/setEffect?effect=' + effect)
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  213 |     .then(() => {
      |     ~~~~~~~~~~~~~
  214 |       const rainbowBtn = document.getElementById('rainbowBtn');
      |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  215 | 
      |  
  216 |       // Réinitialise tous les boutons
      |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  217 |       document.querySelectorAll('.effect-btn').forEach(btn => {
      |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  218 |         btn.classList.remove('active');
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  219 |       });
      |       ~~~
  220 | 
      |  
  221 |       // Met à jour l'état actif
      |       ~~~~~~~~~~~~~~~~~~~~~~~~~~
  222 |       if (effect === 'rainbow' || effect === 'rainbowAll') {
      |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  223 |         rainbowBtn.classList.add('active');
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  224 |         rainbowBtn.dataset.mode = (effect === 'rainbow' ? 'rainbowAll' : 'rainbow');
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  225 |       } else {
      |       ~~~~~~~~
  226 |         document.getElementById(effect + 'Btn').classList.add('active');
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  227 |       }
      |       ~
  228 |     });
      |     ~~~
  229 | }
      | ~
  230 | 
      |  
  231 |     // Charger les paramètres depuis l'ESP32
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  232 |     function loadSettings() {
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~
  233 |       fetch('/getSettings')
      |       ~~~~~~~~~~~~~~~~~~~~~
  234 |         .then(response => response.json())
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  235 |         .then(settings => {
      |         ~~~~~~~~~~~~~~~~~~~
  236 |           const [r, g, b] = settings.color.split(',').map(Number);
      |           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  237 |           const hue = rgbToHue(r, g, b);
      |           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  238 |           hueSlider.value = hue;
      |           ~~~~~~~~~~~~~~~~~~~~~~
  239 |           brightnessSlider.value = settings.brightness;
      |           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  240 |           speedSlider.value = settings.speed;
      |           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  241 |           updateColor();
      |           ~~~~~~~~~~~~~~
  242 |           updateSliderValues();
      |           ~~~~~~~~~~~~~~~~~~~~~
  243 |           document.querySelectorAll('.effect-btn').forEach(btn => {
      |           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  244 |             btn.classList.remove('active');
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  245 |             if (btn.id === settings.effect + 'Btn') btn.classList.add('active');
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  246 |           });
      |           ~~~
  247 |           showConnectionStatus();
      |           ~~~~~~~~~~~~~~~~~~~~~~~
  248 |         });
      |         ~~~
  249 |     }
      |     ~
  250 | 
      |  
  251 |     function showConnectionStatus() {
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  252 |       connectionStatus.style.display = 'block';
      |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  253 |       setTimeout(() => connectionStatus.style.display = 'none', 2000);
      |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  254 |     }
      |     ~
  255 | 
      |  
  256 |     // Éléments DOM
      |     ~~~~~~~~~~~~~~~
  257 | const hueSlider = document.getElementById('hueSlider');
      | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  258 | const brightnessSlider = document.getElementById('brightnessSlider');
      | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  259 | const speedSlider = document.getElementById('speedSlider');
      | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  260 | const colorPreview = document.getElementById('colorPreview');
      | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  261 | const brightnessValue = document.getElementById('brightnessValue');
      | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  262 | 
      |  
  263 | // Conversion en pourcentage
      | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  264 | function toPercent(value, min, max) {
      | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  265 |   return Math.round(((value - min) / (max - min)) * 100);
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  266 | }
      | ~
  267 | 
      |  
  268 | // Mise à jour des valeurs en %
      | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  269 | function updateSliderValues() {
      | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  270 |   brightnessValue.textContent = toPercent(brightnessSlider.value, 0, 255) + '%';
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  271 | }
      | ~
  272 | 
      |  
  273 | // Conversion teinte vers RGB
      | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  274 | function hueToRgb(h) {
      | ~~~~~~~~~~~~~~~~~~~~~~
  275 |   h /= 60;
      |   ~~~~~~~~
  276 |   const c = 255;
      |   ~~~~~~~~~~~~~~
  277 |   const x = (1 - Math.abs(h % 2 - 1)) * 255;
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  278 |   let r, g, b;
      |   ~~~~~~~~~~~~
  279 | 
      |  
  280 |   if (h >= 0 && h < 1) { [r,g,b] = [c,x,0]; }
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  281 |   else if (h < 2) { [r,g,b] = [x,c,0]; }
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  282 |   else if (h < 3) { [r,g,b] = [0,c,x]; }
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  283 |   else if (h < 4) { [r,g,b] = [0,x,c]; }
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  284 |   else if (h < 5) { [r,g,b] = [x,0,c]; }
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  285 |   else { [r,g,b] = [c,0,x]; }
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
  286 | 
      |  
  287 |   return {r: Math.round(r), g: Math.round(g), b: Math.round(b)};
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  288 | }
      | ~
  289 | 
      |  
  290 | // Mise à jour couleur
      | ~~~~~~~~~~~~~~~~~~~~~~
  291 | function updateColor() {
      | ~~~~~~~~~~~~~~~~~~~~~~~~
  292 |   const hue = hueSlider.value;
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  293 |   const color = hueToRgb(hue);
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  294 |   const hex = `#${color.r.toString(16).padStart(2,'0')}${color.g.toString(16).padStart(2,'0')}${color.b.toString(16).padStart(2,'0')}`;
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  295 | 
      |  
  296 |   colorPreview.style.backgroundColor = `rgb(${color.r}, ${color.g}, ${color.b})`;
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  297 |   colorPreview.style.boxShadow = `0 0 20px rgba(${color.r}, ${color.g}, ${color.b}, 0.7)`;
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  298 |   fetch('/setColor?color=' + encodeURIComponent(hex));
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  299 |   updateSliderValues();
      |   ~~~~~~~~~~~~~~~~~~~~~
  300 | }
      | ~
  301 | 
      |  
  302 | // Écouteurs d'événements
      | ~~~~~~~~~~~~~~~~~~~~~~~~~
  303 | hueSlider.addEventListener('input', updateColor);
      | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  304 | brightnessSlider.addEventListener('input', () => {
      | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  305 |   updateSliderValues();
      |   ~~~~~~~~~~~~~~~~~~~~~
  306 |   fetch('/setBrightness?brightness=' + brightnessSlider.value);
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  307 | });
      | ~~~
  308 | speedSlider.addEventListener('input', () => {
      | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  309 |   updateSliderValues();
      |   ~~~~~~~~~~~~~~~~~~~~~
  310 |   fetch('/setSpeed?speed=' + speedSlider.value);
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  311 | });
      | ~~~
  312 | 
      |  
  313 | // Gestion des effets
      | ~~~~~~~~~~~~~~~~~~~~~
  314 | function setEffect(effect) {
      | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  315 |   fetch('/setEffect?effect=' + effect)
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  316 |     .then(() => {
      |     ~~~~~~~~~~~~~
  317 |       document.querySelectorAll('.effect-btn').forEach(btn => {
      |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  318 |         btn.classList.remove('active');
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  319 |         if (btn.id === effect + 'Btn') btn.classList.add('active');
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  320 |       });
      |       ~~~
  321 |     });
      |     ~~~
  322 | }
      | ~
  323 | 
      |  
  324 | // Assignation des événements aux boutons
      | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  325 | document.getElementById('serpentBtn').addEventListener('click', () => setEffect('serpent'));
      | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  326 | document.getElementById('rainbowBtn').addEventListener('click', () => setEffect('rainbow'));
      | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  327 | document.getElementById('rainbowAllBtn').addEventListener('click', () => setEffect('rainbowAll'));
      | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  328 | document.getElementById('allBtn').addEventListener('click', () => setEffect('all'));
      | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  329 | document.getElementById('offBtn').addEventListener('click', () => setEffect('off'));
      | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  330 | 
      |  
  331 | // Initialisation
      | ~~~~~~~~~~~~~~~~~
  332 | updateColor();
      | ~~~~~~~~~~~~~~
  333 | updateSliderValues();
      | ~~~~~~~~~~~~~~~~~~~~~
  334 | setEffect('off');
      | ~~~~~~~~~~~~~~~~~
  335 |     document.addEventListener('DOMContentLoaded', loadSettings);
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  336 |   </script>
      |   ~~~~~~~~~
  337 | </body>
      | ~~~~~~~
  338 | </html>
      | ~~~~~~~
  339 | )rawliteral"
      | ~~~~~~~~~~~~
C:\Users\ordi2405239\Desktop\beandeauLed\beandeauLed.ino: In function 'void allOn()':
C:\Users\ordi2405239\Desktop\beandeauLed\beandeauLed.ino:139:14: error: 'leds' was not declared in this scope
  139 |   fill_solid(leds, NUM_LEDS, selectedColor);
      |              ^~~~
C:\Users\ordi2405239\Desktop\beandeauLed\beandeauLed.ino: In function 'void allOff()':
C:\Users\ordi2405239\Desktop\beandeauLed\beandeauLed.ino:144:14: error: 'leds' was not declared in this scope
  144 |   fill_solid(leds, NUM_LEDS, CRGB::Black);
      |              ^~~~
C:\Users\ordi2405239\Desktop\beandeauLed\beandeauLed.ino: In function 'void serpentAnimation()':
C:\Users\ordi2405239\Desktop\beandeauLed\beandeauLed.ino:153:16: error: 'leds' was not declared in this scope
  153 |     fill_solid(leds, NUM_LEDS, CRGB::Black);
      |                ^~~~
C:\Users\ordi2405239\Desktop\beandeauLed\beandeauLed.ino: In function 'void rainbowAnimation()':
C:\Users\ordi2405239\Desktop\beandeauLed\beandeauLed.ino:171:7: error: 'leds' was not declared in this scope
  171 |       leds[i] = Wheel(((i * 256 / NUM_LEDS) + rainbowPosition) & 255);
      |       ^~~~
C:\Users\ordi2405239\Desktop\beandeauLed\beandeauLed.ino: In function 'void rainbowAll()':
C:\Users\ordi2405239\Desktop\beandeauLed\beandeauLed.ino:204:16: error: 'leds' was not declared in this scope
  204 |     fill_solid(leds, NUM_LEDS, CHSV(hue >> 8, 255, 255));  // Use upper 8 bits
      |                ^~~~
C:\Users\ordi2405239\Desktop\beandeauLed\beandeauLed.ino: In function 'void setup()':
C:\Users\ordi2405239\Desktop\beandeauLed\beandeauLed.ino:215:51: error: 'leds' was not declared in this scope
  215 |   FastLED.addLeds<LED_TYPE, LED_PIN, COLOR_ORDER>(leds, NUM_LEDS).setCorrection(TypicalLEDStrip);
      |                                                   ^~~~
Using library WiFi at version 3.2.0 in folder: C:\Users\ordi2405239\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.2.0\libraries\WiFi 
Using library Networking at version 3.2.0 in folder: C:\Users\ordi2405239\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.2.0\libraries\Network 
Using library WebServer at version 3.2.0 in folder: C:\Users\ordi2405239\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.2.0\libraries\WebServer 
Using library FS at version 3.2.0 in folder: C:\Users\ordi2405239\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.2.0\libraries\FS 
Using library FastLED at version 3.9.16 in folder: C:\Users\ordi2405239\Documents\Arduino\libraries\FastLED 
Using library DNSServer at version 3.2.0 in folder: C:\Users\ordi2405239\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.2.0\libraries\DNSServer 
Using library ESP32 Async UDP at version 3.2.0 in folder: C:\Users\ordi2405239\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.2.0\libraries\AsyncUDP 
Using library Preferences at version 3.2.0 in folder: C:\Users\ordi2405239\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.2.0\libraries\Preferences 
exit status 1

Compilation error: 'leds' was not declared in this scope````

[blh64]

@lepetidozo

// ==== HTML PAGE ====
const char MAIN_page[] PROGMEM = "site final.html";

This is the variable that you want to hold the contents of your html page.

But your html

@lepetidozo

#include "site final.html"

is just a string literal so you you need to assign it to a variable. Also, you can not #include arbitrary files. I had to rename your file site_final_html.h

Move your variable declaration into the file in front of your raw string literal.

// ==== HTML PAGE ====
const char MAIN_page[] PROGMEM = R"rawliteral(
<!DOCTYPE html>
<html lang="fr">
<head>
....

[lepetidozo]

ok thank you ill try but do you know how to insert a string from a document ?

[blh64]

Many, many people have asked the same question. Google is your friend.

[lepetidozo]

ok thank you i will search it
have a nice day