const int potPin = 9;   // use a safe ADC pin
const int ledPin = 5;

const int pwmFreq = 5000;
const int pwmResolution = 8;

void setup() {
  Serial.begin(115200);
  ledcAttach(ledPin, pwmFreq, pwmResolution);
}

void loop() {
  int potValue = analogRead(potPin);     
  int pwmValue = map(potValue, 0, 4095, 0, 255);

  Serial.print("RAW=");
  Serial.print(potValue);
  Serial.print("  PWM=");
  Serial.println(pwmValue);

  ledcWrite(ledPin, pwmValue);
  delay(10);
}