int pirosLed = 11;
int poti = A0;
int buzzer = 8;
int photo = A1;
int photoPos;

int potiPos;
void setup() {
  Serial.begin(9600);
  // put your setup code here, to run once:
  pinMode(pirosLed, OUTPUT);
  pinMode(poti, INPUT);
  pinMode(photo, INPUT);
  potiPos =-1;
  photoPos = analogRead(photo);
  Serial.print("fényérték: ");
  Serial.println(photoPos);
}

void loop() {
  // put your main code here, to run repeatedly:
  //digitalWrite(pirosLed, HIGH);
  //delay(200);
  //for (int i = 0; i <= 255; i++) {
   // analogWrite(pirosLed, i);
    //delay(10);
    
  //}
  if (potiPos != analogRead(poti)){
    potiPos = analogRead(poti);
    Serial.print("Poti érték: ");
    Serial.println(potiPos);
    Serial.print("Analóg jelérték: ");
    Serial.println(potiPos/4);

    analogWrite(pirosLed, potiPos/4);
    tone(buzzer, potiPos*10, 100);

  } 
   if (photoPos != analogRead(photo)){
    photoPos =analogRead(photo);
    Serial.print("Fényérték: ");
    Serial.println(photoPos);
    analogWrite(pirosLed, photoPos/4);
   }
  //delay(200);
}