#include <wiringPi.h>
#include <stdio.h>
 
int main (void)
{
  
  printf("PIR\n");
 
  if (wiringPiSetup() == -1)
    exit (1);
 
pinMode(2,INPUT);
pinMode(7,OUTPUT);


  for (;;){
    
digitalWrite(7,1);
printf("\nAlarma:%d\n",digitalRead(2));
    delay(1000);
    

    

digitalWrite(7,0);

    delay(1000);
  }
 
  return 0;
}