// by Jon Williams
// -- not for public release
//
// Connect 595 outputs to LEDs (active high)

import stamp.core.*;
import stamp.peripheral.io.SR74xx595;

public class test595 {

  public static void main() {

    SR74xx595 leds = new SR74xx595(CPU.pin0, CPU.pin1, CPU.pin2);

    while (true) {
      for (int ping = 0x01; ping <= 0x40; ping <<= 1) {
        leds.out(ping);
        CPU.delay(1000);
      }
      for (int pong = 0x80; pong >= 0x02; pong >>= 1) {
        leds.out(pong);
        CPU.delay(1000);
      }
    }
  }
} 