// Define the two LED pins
const int LED1_PIN = 2; // Replace with the actual pin numbers you are using
const int LED2_PIN = 3; // Replace with the actual pin numbers you are using
const int BUZZER_PIN = 11; // Changed to pin 11

void setup() {
  // Initialize LED and buzzer pins as outputs
  pinMode(13, OUTPUT);
  pinMode(12, OUTPUT);
  pinMode(BUZZER_PIN, OUTPUT);
}

void loop() {
  // Turn on LED1 and turn off LED2
  digitalWrite(13, HIGH);
  digitalWrite(12, LOW);
  
  // Turn on the buzzer to produce a high tone (siren up)
  tone(BUZZER_PIN, 1000); // High frequency
  
  delay(800); // Wait for 200 milliseconds
  
  // Turn off LED1 and turn on LED2
  digitalWrite(13, LOW);
  digitalWrite(12, HIGH);
  
  // Turn on the buzzer to produce a low tone (siren down)
  tone(BUZZER_PIN, 400); // Low frequency
  
  delay(800); // Wait for 200 milliseconds
}