const int smokeSensorPin = A0; // Analog pin for smoke sensor
const int heatSensorPin = A1;  // Analog pin for heat sensor
const int flameSensorPin = A2; // Analog pin for flame sensor
const int ledPin = 13;         // Digital pin for LED (alarm)
const int buzzerPin = 12;      // Digital pin for Buzzer (alarm)

// Threshold values for fire detection
const int smokeThreshold = 600;
const int heatThreshold = 700;
const int flameThreshold = 500;

void setup() {
  pinMode(ledPin, OUTPUT);
  pinMode(buzzerPin, OUTPUT);
  Serial.begin(9600);
}

void loop() {
  int smokeValue = analogRead(smokeSensorPin);
  int heatValue = analogRead(heatSensorPin);
  int flameValue = analogRead(flameSensorPin);

  Serial.print("Smoke: ");
  Serial.print(smokeValue);
  Serial.print(" Heat: ");
  Serial.print(heatValue);
  Serial.print(" Flame: ");
  Serial.println(flameValue);

  // Check for fire conditions
  if (smokeValue > smokeThreshold || heatValue > heatThreshold || flameValue > flameThreshold) {
    digitalWrite(ledPin, HIGH);   // Turn on LED
    digitalWrite(buzzerPin, HIGH);// Turn on Buzzer
  } else {
    digitalWrite(ledPin, LOW);    // Turn off LED
    digitalWrite(buzzerPin, LOW);// Turn off Buzzer
  }

  delay(1000); // Delay between sensor readings
}