/**
   Arduino Electronic Safe

   Copyright (C) 2020, Uri Shaked.
   Released under the MIT License.
*/


#include <LiquidCrystal.h>

LiquidCrystal lcd(12, 11, 5, 4, 3, 2);
int pirSensor = 7;
int buzzer = 6;
int pirState = LOW;
int val = 0;

void setup() {
  lcd.begin(16, 2);
  pinMode(pirSensor, INPUT);
  pinMode(buzzer, OUTPUT);
  lcd.print("Area Segura");
}

void loop() {
  val = digitalRead(pirSensor);
  if (val == HIGH) {
    if (pirState == LOW) {
      lcd.clear();
      lcd.print("Intruso Detectado!");
      digitalWrite(buzzer, HIGH);
      delay(3000); // 3 segundos
      digitalWrite(buzzer, LOW);
      lcd.clear();
      lcd.print("Area Segura");
      pirState = HIGH;
    }
  } else {
    pirState = LOW;
  }
}