// Tutorial Arduino - Function
const int led=6;
const int potentiometer=A0;
int valpot=0;

void setup() {
  // put your setup code here, to run once:
Serial.begin(9600);
pinMode(led, OUTPUT);
pinMode(potentiometer, INPUT);
}

void loop(){
valpot=analogRead(potentiometer);
valpot=map(valpot,0,1023,0,255);
Serial.println(valpot);
analogWrite(led,valpot);
}