const int ldrPin = 2;   // Broche du capteur LDR
const int ledPin = 4;   // Broche de la LED (utilisation d'une broche PWM pour contrôler la luminosité)
const int pirPin = 5;   // Broche du capteur PIR

int pirState = LOW;
int lastPirState = LOW;

void setup() {
  Serial.begin(115200);
  Serial.println("LDR readings...");
  pinMode(ldrPin, INPUT);
  pinMode(ledPin, OUTPUT);  // Déclaration de la broche de la LED
}

void loop() {
delay(10);

  pirState = digitalRead(pirPin);

  // Check for changes in the PIR sensor state
  if (pirState != lastPirState) {
    if (pirState == HIGH) {
      // Motion detected
      Serial.println("Motion detected!");
      
      // Increase LED brightness when motion is detected
      for (int i = 0; i <= 255; i++) {
        analogWrite(ledPin, i);
        delay(10);
      }
    } else {
      // Motion not detected
      Serial.println("No motion detected.");

      // Decrease LED brightness when motion is not detected
      for (int i = 255; i >= 0; i--) {
        analogWrite(ledPin, i);
        delay(10);
      }
    }

    lastPirState = pirState;
  }

  int ldrValue = analogRead(ldrPin);
  Serial.println(ldrValue);

  // Control the brightness of the LED based on the LDR reading
  int brightness = map(ldrValue, 0, 1023, 0, 255);
  analogWrite(ledPin, brightness);

  delay(1000); // This delay speeds up the simulation
}