#define BUZZER 11
#define POTEN 4
void setup() {
  // put your setup code here, to run once:
  pinMode(BUZZER, OUTPUT);
  pinMode(POTEN, INPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  int VALORPOTEN = analogRead(POTEN);
  int VALORBUZZER = map(VALORPOTEN,0,1023,0,255);
  analogWrite(BUZZER,VALORBUZZER);
}