//below line Because we have connected the Buzzer with pin 12 of the Arduino.
int Buzzerpin = 12;

void setup() {
  // put your setup code here, to run once:
  pinMode(Buzzerpin,OUTPUT);
}

void loop() {
//analogRead() function help to read voltage value from the specified analog pin
  int value = analogRead(A0);
  digitalWrite(Buzzerpin, HIGH);  //HIGH to make the buzzer ON
  tone(Buzzerpin, value); // the buzzer will ring as per voltage value.
  delay(value);
  digitalWrite(Buzzerpin, LOW); // LOW to make the buzzer OFF
  delay(value);
  Serial.println(value); //PRINT on consolue
}