PORTB = (0<<7)|(0<<6)|(0<<5)|(0<<4)|(0<<3)|(0<<2)|(0<<1)|(0<<0); // all pins to 0 DDRB =(1<<7)|(1<<6)|(1<<5)|(1<<4)|(1<<3)|(1<<2)|(1<<1)|(1<<0); // all pins to out
PORTD = (0<<7)|(0<<6)|(0<<5)|(0<<4)|(0<<3)|(0<<2)|(0<<1)|(0<<0); // all pins to 0 DDRD =(0<<7)|(0<<6)|(0<<5)|(1<<4)|(1<<3)|(1<<2)|(1<<1)|(1<<0); // pins 5,6,7 to in