#include <LedControl.h>

int DIN = 2;
int CS = 3;
int CLK = 4;

const int num_matr = 1;

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

byte neutral[8] = {
  B00111100,
  B01000010,
  B10000001,
  B10100101,
  B10000001,
  B10111101,
  B01000010,
  B00111100,
};

void setup() {
lc.shutdown (0, false);
lc.setIntensity (0, 8);
lc.clearDisplay (0);

}

void loop() {

displayPattern (neutral);

}

void displayPattern (byte pattern[8]) {
  for (int row = 0; row < 8; row++) {
    lc.setRow (0, row, pattern[row]);
  }

}