const int potPin = A0;
const int ledPin = 9;

void setup() {
  pinMode(ledPin, OUTPUT);
  Serial.begin(9600);
}

void loop() {
  int potValue = analogRead(potPin); // Lê o valor do potenciômetro (de 0 a 1023)
  int brightness = map(potValue, 0, 1023, 0, 255);
  
  analogWrite(ledPin, brightness); // Define o brilho do LED com PWM
  
  Serial.print("Potenciômetro: ");
  Serial.print(potValue);
  Serial.print(" | Brilho: ");
  Serial.println(brightness);
  
  delay(100); 
}