int buzzPin = 8;
float buzzDelay;
int potPin = A0;
int potVal;
int buttonPin = 9;

void setup()
{
  Serial.begin(9600);

  pinMode(buzzPin,  OUTPUT);
  pinMode(potPin, INPUT);
  pinMode(buttonPin, INPUT_PULLUP);
}

void loop()
{
  
  if(digitalRead(buttonPin) == LOW)
  {
    potVal = analogRead(potPin);
    buzzDelay = (9940./1023.) * potVal + 60;

    digitalWrite(buzzPin, HIGH);
    delayMicroseconds(buzzDelay);
    digitalWrite(buzzPin, LOW);
    delayMicroseconds(buzzDelay);

  }
  
  Serial.println(potVal);
}