int v = 0;


void setup() {
  Serial.begin(9600);
  pinMode(5, OUTPUT);
    tone(5,440,1000);
   delay(1000);

}

void loop() {
    v = analogRead(A0);
    Serial.println(v);
    v = map(v, 0, 1023, 0, 255);
    tone(5,440,v);
     delay(v);

}