#include <LedControl.h>

int DIN = 11;
int CS = 10;
int CLK = 13;
int position = 0;

LedControl lc = LedControl(DIN, CLK, CS,1);

void setup() {
  lc.shutdown(0, false);
  lc.setIntensity(0, 10);
  lc.clearDisplay(0);
}

int counter = 0;

void loop() {
  counter++;
  if (counter % 2 == 1) {
    lc.setLed(0,0,7,true);
  } else {
    lc.setLed(0,0,7,false); 
  }
  delay(1000);
}