diff --git a/src/main.cpp b/src/main.cpp
index 0ea9b51..fda2c36 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -12,13 +12,13 @@
 #define LED_COUNT 1
 Adafruit_NeoPixel led(LED_COUNT, LED_PIN, NEO_GRB + NEO_KHZ800);
 
-// Couleurs
+// Couleurs (luminosité réduite à ~20%)
 #define COLOR_OFF    led.Color(0, 0, 0)
-#define COLOR_WHITE  led.Color(255, 255, 255)
-#define COLOR_RED    led.Color(255, 0, 0)
-#define COLOR_GREEN  led.Color(0, 255, 0)
-#define COLOR_BLUE   led.Color(0, 0, 255)
-#define COLOR_YELLOW led.Color(255, 255, 0)
+#define COLOR_WHITE  led.Color(50, 50, 50)
+#define COLOR_RED    led.Color(50, 0, 0)
+#define COLOR_GREEN  led.Color(0, 50, 0)
+#define COLOR_BLUE   led.Color(0, 0, 50)
+#define COLOR_YELLOW led.Color(50, 50, 0)
 
 // UUID pour le service et la caractéristique BLE
 #define SERVICE_UUID        "4fafc201-1fb5-459e-8fcc-c5c9c331914b"
@@ -108,13 +108,18 @@ void setup() {
   }
   
   // Lire l'ID du module (GPIO 8=bit0, 9=bit1, 10=bit2)
+  // Logique inverse : LOW=1, HIGH=0
+  // LOW LOW LOW (000) = BleQuiz-1
+  // LOW LOW HIGH (001) = BleQuiz-2
+  // ...
+  // HIGH HIGH HIGH (111) = BleQuiz-8
   uint8_t moduleId = 0;
   for (int i = 0; i < NUM_ID_PINS; i++) {
-    if (digitalRead(ID_GPIO_PINS[i]) == LOW) {
+    if (digitalRead(ID_GPIO_PINS[i]) == HIGH) {
       moduleId |= (1 << i);
     }
   }
-  moduleId += 1; // ID de 1 à 8 (000=1, 001=2, ..., 111=8)
+  moduleId += 1; // ID de 1 à 8
   moduleName = "BleQuiz-" + String(moduleId);
   
   Serial.print("ID du module détecté: ");