int colAnodes[] = {23, 25, 27};
int rowCathodes[] = {29, 39, 51};
unsigned long showTimeL = millis() + 1000;
unsigned long showTimeD = millis() + 2000;
unsigned long showTimeW = millis() + 3000;

boolean letters[3][3][3] = {
                              { 
                                {1, 1, 1},
                                {0, 0, 1},
                                {0, 0, 1}
                              },

                              {
                                {1, 1, 1},
                                {1, 0, 1},
                                {0, 1, 0}
                              },

                              {
                                {1, 1, 1},
                                {0, 1, 1},
                                {1, 1, 1}
                              }
                            };

void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);

  //Serial.println(sizeof(colAnodes) / sizeof(colAnodes[0]));
  for (int pointer = 0; pointer <= 2; pointer ++) {
    pinMode(colAnodes[pointer], OUTPUT);
    digitalWrite(colAnodes[pointer], LOW);
  }
  //Serial.println (sizeof(rowCathodes) / sizeof(rowCathodes[0]));
  for (int pointer = 0; pointer <= 2; pointer ++) {
    pinMode(rowCathodes[pointer], OUTPUT);
    digitalWrite(rowCathodes[pointer], HIGH);
  }
  for(int letterPointer = 0; letterPointer<=2; letterPointer ++){
    Serial.print(letters[letterPointer][0][0]); Serial.print(letters[letterPointer][1][0]); Serial.println(letters[letterPointer][2][0]);
    Serial.print(letters[letterPointer][0][1]); Serial.print(letters[letterPointer][1][1]); Serial.println(letters[letterPointer][2][1]);
    Serial.print(letters[letterPointer][0][2]); Serial.print(letters[letterPointer][1][2]); Serial.println(letters[letterPointer][2][2]);
    Serial.println("\n");
  }
}


void loop() {
  // put your main code here, to run repeatedly:
  if (millis() < showTimeL) {
    lightLED(0, 0);
    lightLED(0, 1);
    lightLED(0, 2);
    lightLED(1, 2);
    lightLED(2, 2);
  }

  if ((millis() > showTimeL) && (millis() < showTimeD)) {
    lightLED(0, 0);
    lightLED(0, 1);
    lightLED(0, 2);
    lightLED(1, 0);
    lightLED(1, 2);
    lightLED(2, 1);
  }
  if ((millis() > showTimeD) && (millis() < showTimeW)) {
    lightLED (0, 0);
    lightLED (0, 1);
    lightLED (0, 2);
    lightLED (1, 1);
    lightLED (1, 2);
    lightLED (2, 0);
    lightLED (2, 1);
    lightLED (2, 2);
  }

  if (millis() > showTimeW) {
    showTimeL = millis() + 1000;
    showTimeD = millis() + 2000;
    showTimeW = millis() + 3000;
  }
}
void lightLED(int col, int row) {
  for (int pointer = 0; pointer <= (sizeof(colAnodes) / sizeof(colAnodes[0])) - 1; pointer ++) {
    pinMode(rowCathodes[pointer], OUTPUT);
    digitalWrite(rowCathodes[pointer], HIGH);
  }
  for (int pointer = 0; pointer <= (sizeof(colAnodes) / sizeof(colAnodes[0])) - 1; pointer ++) {
    pinMode(colAnodes[pointer], OUTPUT);
    digitalWrite(colAnodes[pointer], LOW);
  }
  digitalWrite(colAnodes[col], HIGH);
  digitalWrite(rowCathodes[row], LOW);

}