// LED is connected to GPIO 2
const int ledPin = 2;

// Potentiometer is connected to GPIO 34 (Analog ADC1_CH6)
const int potentiometerPin = 34;

// variable for storing the potentiometer value
int potentiometerValue = 0;
float potentiometer_Vout = 3.3;

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  pinMode(ledPin, OUTPUT);
  pinMode(potentiometerPin, INPUT);
  Serial.println("Hello, Ade Satria Hardinata!");
}

void loop() {
  potentiometerValue = analogRead(potentiometerPin);   // Reading potentiometer value

  // Description: Map data from one range to another.
  // Function prototype: map(value, fromLow, fromHigh, toLow, toHigh)
  int dutyCycle = map(potentiometerValue, 0, 4095, 0, 254);
  Serial.print("Duty Cycle: ");
  Serial.println(dutyCycle);

  // changing the LED brightness with PWM
  analogWrite(ledPin, dutyCycle);
  delay(3);
}