#include <LedControl.h>

// LedControl(DataIn, Clock, ChipSelect, nCascades);
LedControl lc=LedControl(10,12,11,1);

void draw_z() {
  for( int i=0; i < 8; i++ ) {
    lc.setLed(0, 0, 7-i, 1);
    delay(100);
  }
  for( int i=0; i < 8; i++ ) {
    lc.setLed(0, i, i, 1);
    delay(100);
  }
  for( int i=0; i < 8; i++ ) {
    lc.setLed(0, 7, 7-i, 1);
    delay(100);
  }
}
void setup() {
  lc.shutdown(0,false);
  lc.setIntensity(0,8); // 0 ~ 15
  lc.clearDisplay(0);
  draw_z();
}

void loop() { 
}