#include "LedControl.h"
LedControl lc=LedControl(12,11,10,1);

const uint64_t fpsSHOW[] = {
  0xffffffffffffffff,
  0x0000000000000000
};
void displayImage(uint64_t image) {
  for (int i = 0; i < 8; i++) {
    byte row = (image >> i * 8)& 0xFF;
    for (int j = 0; j < 8; j++) {
      lc.setLed(0, i, j, bitRead(row, j));
    }
  }
//  lc.setRow(0,2,B00001111);
}
unsigned long interval[100];
bool whichImg;
unsigned long prevtime = 0;

void setup() {
  // put your setup code here, to run once:
  lc.shutdown(0,false);
  /* Set the brightness to a medium values */
  lc.setIntensity(0,8);
  /* and clear the display */
  lc.clearDisplay(0);
  whichImg = true;
  for(int i = 0; i< 100; i++)
  {
    interval[i] = long(1000/(float(i)*2.0));
  }
}


void loop() {
  unsigned long currenttime = millis();
  unsigned long diff = currenttime - prevtime;
  if(diff > interval[60]){
    prevtime = currenttime;
    whichImg = !whichImg;
//    displayImage(fpsSHOW[whichImg]);
    if(whichImg)
    {
      for(int i = 0; i < 8; i++){
        lc.setRow(0,i,B11111111);
      }
    }else{
      for(int i = 0; i < 8; i++){
        lc.setRow(0,i,B00000000);
      }
    }
  }
}