// Include Arduino Wire library for I2C
#include <Wire.h>
// Define Child I2C Address
#define CHILD_ADDR 9

int distance;
int buzzer = 10;
 
void setup() {
 
  // Initialize I2C communications as Child
  Wire.begin(CHILD_ADDR);
   
  // Function to run when data received from father
  Wire.onReceive(receiveEvent);

  Serial.begin(9600); 
}

void receiveEvent(int numBytes) {
  
distance = Wire.read();
}


void loop() {
 Serial.println(distance);
// tone(buzzer,distance);
// delay(500);
 noTone(buzzer);
 delay(500);
}