#include <Servo.h>

Servo servoH;

#define POTENSIO A5
#define SERVO 11
int POSITION;

void setup() {
   servoH.attach(SERVO);
   pinMode(A5, INPUT);
}

void loop() {

  // POSITION = map(analogRead(A5), 0, 1023, 0, 180);
  // servoH.write(POSITION);  

   for (POSITION = 0; POSITION <= 180; POSITION += 1) { 
    servoH.write(POSITION);             
    delay(100);     
    }           
   for (POSITION = 180; POSITION >= 0; POSITION -= 1) { 
    servoH.write(POSITION);             
    delay(100);     
    }     

}