// MAX 7219 flame test

#include <LibPrintf.h>

uint8_t flameOut, flameBuild;
uint8_t matrix[8][8];



void setup() {
  Serial.begin(115200);
  randomSeed(13);


}

void loop() {
  //static flamebuild;

  for (byte j = 0; j < 3; j++) {

    flameBuild = 0xff;
    // turn off two pixels

    long pixels;
    // loop to turn off maximum two pixels
    for (byte i = 0; i < 2; i++) {
      pixels =  random(0, 8);
      flameBuild = bitClear(flameBuild,  pixels);
      matrix[i
      ] = flameBuild;
    }


    flameBuild = 0xff;
    // loop to turn off maximum three pixels
    for (byte i = 0; i < 3; i++) {
      pixels =  random(0, 8);
      flameBuild = bitClear(flameBuild,  pixels);
    }


    matrix[j] = flameBuild;
  }

  printf("%08b\n", matrix[2]); // print with formatting
  printf("%08b\n", matrix[1]); // print with formatting
  printf("%08b\n", matrix[0]); // print with formatting
  printf("\n\n");
  delay(2000);



}