int potPin = 34;  // Analog input pin (GPIO34 on ESP32)
int LED_BUILTIN = 2; // PWM output pin (GPIO2 on ESP32)

void setup() {
  pinMode(LED_BUILTIN, OUTPUT);
  Serial.begin(9600);  // Start serial communication at 9600 bps
  
  pinMode(potPin, INPUT);

}

void loop() {
  int potValue = analogRead(potPin); // Read
  float voltage = potValue * (5.0/1023.0); // Convert
  int ledBrightness = map (potValue, 0, 1023, 0, 255); //Map

  analogWrite (LED_BUILTIN, ledBrightness); //Set

  // Print the analog read value and the calculated voltage to Serial Monitor
  Serial.print("Potentiometer Voltage: ");
  Serial.print(voltage);
  Serial.println(" V");

  delay(100);  // Wait for 100 milliseconds
}