// LED Button Blink Program
#include <avr/io.h>
#define F_CPU 2e6
#include <avr/delay.h>

#define TRUE 1
#define FALSE 0

int main()
{
//SETUP
//Button is on PA3
//LED is PA7

DDRA = _BV(PA7); //Enable output on the LED pin
PORTA = _BV(PA7); //Turns LED on

//LOOP
 int npush;
 npush = 1;
while (TRUE)
{
if ((PINA & _BV(PA3))) //button is not pushed
{
PORTA = 0; //turn LED off
}
else 
{
  int x = 0;
  for (x=0; x<npush; x++) {
    _delay_ms(100);
  }
  int y = 0;
  for (y=0; y<npush; y++) {
    PORTA = _BV(PA7);
    _delay_ms(100);
  }
  if (npush>52) {
    npush = 1; 
  }
 PORTA = 0;
npush = npush + 1;
}
}
}