// Potentiometer is connected to GPIO 34 (Analog ADC1_CH6) 

//int Buzzer = 7; //for Arduino Microcontroller
//int Buzzer = D7; //for ESP8266 Microcontroller
int Buzzer = 4; //for ESP32 Microcontroller

//const int duration = 500;
const int middle_c = 440;

const int potPin = 34;

// variable for storing the potentiometer value
int potValue = 0;

void setup() {
  Serial.begin(115200);
  delay(1000);
  pinMode (Buzzer, OUTPUT);
}

void loop() {
  // Reading potentiometer value
  potValue = analogRead(potPin);
  Serial.println(potValue);
  delay(potValue);

  /*digitalWrite (Buzzer, HIGH); //turn buzzer on
  delay(potValue);
  digitalWrite (Buzzer, LOW);  //turn buzzer off
  delay(potValue);*/

  tone(Buzzer, middle_c, potValue);
  delay(potValue);
//
}