// port manipulation
void setup() {
  // put your setup code here, to run once:
  DDRD=B11111111; //set digital (7-1) to outputs
  DDRC=B11111111; //set analog (7-1) to outputs

  PORTD=B11111110; 
  PORTC=B11111110; 
  delay(500);
  PORTD=B00000000; 
  PORTC=B00000000;
  Serial.begin(9600);
}

void loop() {
  // put your main code here, to run repeatedly:
  //testing LEDs
  PORTD=2;
  delay(500);
  PORTD=4;
  delay(500);
  PORTD=8;
  delay(500);
}