#include <LedControl.h>

const int DIN_PIN = 7;
const int CS_PIN = 6;
const int CLK_PIN = 5;

const uint8_t IMAGES[][8] = {
{
  0b00111110,
  0b01111111,
  0b01001001,
  0b01101101,
  0b01111111,
  0b01111111,
  0b01111111,
  0b01010101
},{
  0b00111110,
  0b01111111,
  0b01011011,
  0b01001001,
  0b01111111,
  0b01111111,
  0b01111111,
  0b00101011
},{
  0b00111110,
  0b01111111,
  0b01001001,
  0b01101101,
  0b01111111,
  0b01111111,
  0b01111111,
  0b01010101
}};
const int IMAGES_LEN = sizeof(IMAGES)/8;




LedControl display = LedControl(DIN_PIN, CLK_PIN, CS_PIN);

void setup() {
  display.clearDisplay(0);
  display.shutdown(0, false);
  display.setIntensity(0, 5);
}

void displayImage(const byte* image) {
  for (int i = 0; i < 8; i++) {
    for (int j = 0; j < 8; j++) {
      display.setLed(0, i, j, bitRead(image[i], 7 - j));
    }
  }
}

int i = 0;

void loop() {
  displayImage(IMAGES[i]);
  if (++i >= IMAGES_LEN ) {
    i = 0;
  }
  delay(333);
}