#include <Wire.h>
#include <Servo.h>

#define BUZZER_PIN 9
Servo servo1;
Servo servo2;

void setup() {
  pinMode(BUZZER_PIN, OUTPUT);
  servo1.attach(5); // Servo motor 1
  servo2.attach(6); // Servo motor 2
  Wire.begin(0x02); // Initialize as slave with address 0x02
  Wire.onReceive(receiveEvent);
}

void loop() {
  // Nothing in loop; everything is handled in receiveEvent
}

void receiveEvent(int bytes) {
  int distance = Wire.read(); // Read distance from master
  if (distance < 20) {
    digitalWrite(BUZZER_PIN, HIGH); // Trigger buzzer
  } else {
    digitalWrite(BUZZER_PIN, LOW);  // Turn off buzzer
  }

  int servoAngle = map(distance, 0, 100, 0, 180); // Map distance to servo angle
  servo1.write(servoAngle);
  servo2.write(180 - servoAngle); // Opposite angle for second servo
}