void setup()
{
	// Starting registering states
	//Pin state must be declared using PORTx Command
	//First bits (00) of PORTB correspond to nothing
	PORTB = B00101010;
	//WARNING: last bits of PORTD (...10) correspond to RX and TX pins, do not change them!
	PORTD=  B10000010;
}
void loop()
{
	//Light up pins 13, 11 , 9 , 7
	DDRB = B00101010;
	DDRD = B10000010;
	delay(1000);
	//Lights off
	PORTB = B00000000;
	PORTD = B00000010;
	DDRB = B00000000;
	DDRD = B00000010;
	// Light up pins 12, 10, 8, 6
	PORTB = B00010101;
	PORTD = B01000010;
	DDRB = B00010101;
	DDRD = B01000010;
	delay(1000);
	//sets 13, 11, 9, 7 pins back to outputs to be looped again
	PORTB = B00101010;
	PORTD=  B10000010;
}