gistfile1.hpp

/*
 Originally By David Cuartielles
  http://arduino.cc/en/Tutorial/Blink
 based on an orginal by H. Barragan for the Wiring i/o board
 */

#define highpin 12
#define lowpin 7

// The setup() method runs once, when the sketch starts

void setup()   {                
  for (int i = lowpin; i <= highpin; i++) {
    pinMode(i, OUTPUT);
    digitalWrite(i, HIGH);
  }
}

// the loop() method runs over and over again,
// as long as the Arduino has power

void loop()                     
{
  int i, j;
  for (i = lowpin; i <= highpin; i++) {
    for (j = lowpin; j <= highpin; j++) {
      if (i == j)
        digitalWrite(j, LOW);  // common anode: on = LOW
      else
        digitalWrite(j, HIGH);
    }
    delay(200);
  }
}