int Pin = 12;

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

void loop() {
  // put your main code here, to run repeatedly:
int ana = analogRead(A0);
digitalWrite(Pin, HIGH);
tone(Pin, ana);
delay(ana);
digitalWrite(Pin, LOW);
delay(ana);
Serial.print(ana);
}