// Pin Definitions
#define SMOKE_SENSOR_PIN 34   // Analog input pin
#define BUZZER_PIN 26         // Buzzer pin

// Threshold value (adjust based on calibration)
#define SMOKE_THRESHOLD 2000  

void setup() {
  Serial.begin(115200);

  pinMode(BUZZER_PIN, OUTPUT);
  digitalWrite(BUZZER_PIN, LOW);  // Buzzer OFF
}

void loop() {
  int smokeValue = analogRead(SMOKE_SENSOR_PIN);

  Serial.print("Smoke Level: ");
  Serial.println(smokeValue);

  if (smokeValue > SMOKE_THRESHOLD) {
    digitalWrite(BUZZER_PIN, HIGH);  // Alarm ON
    Serial.println("⚠️ Smoke Detected!");
  } else {
    digitalWrite(BUZZER_PIN, LOW);   // Alarm OFF
  }

  delay(1000); // 1-second delay
}