Blink_UJ_Project

int a1 = 2;
int a2 = 3;
int a3 = 4;
int a4 = 5;
int a5 = 6;
int a6 = 7;
int a7 = 8;
int a8 = 9;
int a9 = 10;
int a10 = 11;
int a11 = 12;
int a12 = A0;
int t1 = 500;

void setup() {
  pinMode(a1, OUTPUT);
  pinMode(a2, OUTPUT);
  pinMode(a3, OUTPUT);
  pinMode(a4, OUTPUT);
  pinMode(a5, OUTPUT);
  pinMode(a6, OUTPUT);
  pinMode(a7, OUTPUT);
  pinMode(a8, OUTPUT);
  pinMode(a9, OUTPUT);
  pinMode(a10, OUTPUT);
  pinMode(a11, OUTPUT);
  pinMode(a12, OUTPUT);
  allLEDOFF();
  delay(5000);
}


void loop() {

  led13ON();
  delay(5000);
  led13OFF();
  delay(5000);
  for (int j = 0; j < 10; j++) {
    allLEDON();
    delay(500);
    allLEDOFF();
    delay(500);
  }
}

void led13OFF() {
  digitalWrite(a1, 1);
  delay(t1);
  digitalWrite(a2, 1);
  delay(t1);
  digitalWrite(a3, 1);
  delay(t1);
  digitalWrite(a4, 1);
  delay(t1);
  digitalWrite(a5, 1);
  delay(t1);
  digitalWrite(a6, 1);
  delay(t1);
  digitalWrite(a7, 1);
  delay(t1);
  digitalWrite(a8, 1);
  delay(t1);
  digitalWrite(a9, 1);
  delay(t1);
  digitalWrite(a10, 1);
  delay(t1);
  digitalWrite(a11, 1);
  delay(t1);
  digitalWrite(a12, 1);
  delay(t1);
}

void led13ON() {

  digitalWrite(a12, 0);
  delay(t1);
  digitalWrite(a11, 0);
  delay(t1);
  digitalWrite(a10, 0);
  delay(t1);
  digitalWrite(a9, 0);
  delay(t1);
  digitalWrite(a8, 0);
  delay(t1);
  digitalWrite(a7, 0);
  delay(t1);
  digitalWrite(a6, 0);
  delay(t1);
  digitalWrite(a5, 0);
  delay(t1);
  digitalWrite(a4, 0);
  delay(t1);
  digitalWrite(a3, 0);
  delay(t1);
  digitalWrite(a2, 0);
  delay(t1);
  digitalWrite(a1, 0);
  delay(t1);
}

void allLEDOFF() {
  digitalWrite(a1,  1);
  digitalWrite(a2,  1);
  digitalWrite(a3,  1);
  digitalWrite(a4,  1);
  digitalWrite(a5,  1);
  digitalWrite(a6,  1);
  digitalWrite(a7,  1);
  digitalWrite(a8,  1);
  digitalWrite(a9,  1);
  digitalWrite(a10, 1);
  digitalWrite(a11, 1);
  digitalWrite(a12, 1);
}


void allLEDON() {
  digitalWrite(a1,  0);
  digitalWrite(a2,  0);
  digitalWrite(a3,  0);
  digitalWrite(a4,  0);
  digitalWrite(a5,  0);
  digitalWrite(a6,  0);
  digitalWrite(a7,  0);
  digitalWrite(a8,  0);
  digitalWrite(a9,  0);
  digitalWrite(a10, 0);
  digitalWrite(a11, 0);
  digitalWrite(a12, 0);
}