#define led_1 2
#define led_2 3
int PIR = 7;
int x, stato_sensore;

void setup(){
  Serial.begin(9600);
  pinMode(PIR, INPUT);
  pinMode(led_1, OUTPUT);
  pinMode(led_2, OUTPUT);
}

void loop(){
  x = analogRead(A0);
  stato_sensore = digitalRead(PIR);
  Serial.println(x);

  if(x > 515){
    digitalWrite(led_1, HIGH);
  }else{
    digitalWrite(led_1, LOW);

   }

  if(stato_sensore == HIGH){
     digitalWrite(led_2, LOW);
  }else{
    digitalWrite(led_2, HIGH);
    delay(500);
    digitalWrite(led_2, LOW);
    delay(500);

  }
}