#define analog 28
unsigned char leds [5] = {2, 3, 4, 5, 6};
unsigned int nivel [5] = {202, 409, 1023, 2047, 3075};
#define atraso 200

int valor, media;

void setup(){
  Serial1.begin(115200);
  analogReadResolution(12);
  
  for( int 1 =0; 1<5; 1++){
    pinMode(leds [1], OUTPUT);
  }
}

void loop(){
  media=0;
  for ( int 1 =0; 1<4; 1++){
    valor= analogRead(analog);
    Serial1.print(valor);
    Serial1.print(" | ");
    media = media + valor;
    delay(atraso);
  }
media = media >>2;
for (int level = 0; level<5; level++){
  if (media> nivel[level]){
    digitalWrite(leds[level], HIGH);
  }else{
    digitalWrite(leds[level], LOW);
  }
}
Serial1.print(" Media: ");
Serial1.println(media);
}