/* Include useful pre-defined functions */
#include <avr/interrupt.h>    // Defines pins, ports, etc to make programs easier to read
#define F_CPU 1000000UL	      // Sets up the default speed for delay.h
#include <util/delay.h>
char tmp = 0;
int main(){
	DDRD = _BV(PD4);		      /* enable output on port D, pin 5 */
	DDRB &= ~_BV(PB0);
  while(1){
  	char data = PINB & _BV(PB0);
  	if(data != 0)
  	{
  		 _delay_ms(10);
  		data = PINB & _BV(PB0);
  		if(data != 0)
    		PORTD &= ~_BV(PD4); 
    }
    else
    {
    	PORTD = _BV(PD4);
	}
  }

  return(0);
}