4x4x4 Charlieplexed LED Matrix Arduino Test Code

//initialize the port numbers. You can easily change them here if you connected your LEDs in another way than I suggested
int led0 = 0;
int led1 = 1;
int led2 = 2;
int led3 = 3;
int led4 = 4;
int led5 = 5;
int led6 = 6;
int led7 = 7;

//the time we will wait after lighting one LED (in ms)
int time = 500;

void setup(){ //this method will be run once after powering up the arduino
    //put all the pins in output mode so they can light up the LEDs
    pinMode(led0, OUTPUT);
    pinMode(led1, OUTPUT);
    pinMode(led2, OUTPUT);
    pinMode(led3, OUTPUT);
    pinMode(led4, OUTPUT);
    pinMode(led5, OUTPUT);
    pinMode(led6, OUTPUT);
    pinMode(led7, OUTPUT);
    off(); //ensure all the LEDs are off
}


void loop(){ //this method will be repeated once the setup is finished
    splash1(); //we basicly keep calling this method
}

void splash1(){
    all();  //puts on all the LEDs for one second
    a();    //puts on the first LED
    b();    //puts on the second LED (turns first one off)
    c();    //...
    d();
    e();
    f();
    g();
    h();
    i();
    j();
    k();
    l();
    m();
    n();
    o();
    p();
    off();  //turns all LEDs off
}

void off(){
    digitalWrite(led0, HIGH);
    digitalWrite(led1, HIGH);
    digitalWrite(led2, HIGH);
    digitalWrite(led3, HIGH);

    digitalWrite(led4, LOW);
    digitalWrite(led5, LOW);
    digitalWrite(led6, LOW);
    digitalWrite(led7, LOW);
    delay (time);
}

void a(){
    digitalWrite(led0, LOW);
    digitalWrite(led1, HIGH);
    digitalWrite(led2, HIGH);
    digitalWrite(led3, HIGH);

    digitalWrite(led4, HIGH);
    digitalWrite(led5, LOW);
    digitalWrite(led6, LOW);
    digitalWrite(led7, LOW);
    delay (time);
}

void b(){
    digitalWrite(led0, HIGH);
    digitalWrite(led1, LOW);
    digitalWrite(led2, HIGH);
    digitalWrite(led3, HIGH);

    digitalWrite(led4, HIGH);
    digitalWrite(led5, LOW);
    digitalWrite(led6, LOW);
    digitalWrite(led7, LOW);
    delay (time);
}

void c(){
    digitalWrite(led0, HIGH);
    digitalWrite(led1, HIGH);
    digitalWrite(led2, LOW);
    digitalWrite(led3, HIGH);

    digitalWrite(led4, HIGH);
    digitalWrite(led5, LOW);
    digitalWrite(led6, LOW);
    digitalWrite(led7, LOW);
    delay (time);
}

void d(){
    digitalWrite(led0, HIGH);
    digitalWrite(led1, HIGH);
    digitalWrite(led2, HIGH);
    digitalWrite(led3, LOW);

    digitalWrite(led4, HIGH);
    digitalWrite(led5, LOW);
    digitalWrite(led6, LOW);
    digitalWrite(led7, LOW);
    delay (time);
}

void e(){
    digitalWrite(led0, LOW);
    digitalWrite(led1, HIGH);
    digitalWrite(led2, HIGH);
    digitalWrite(led3, HIGH);

    digitalWrite(led4, LOW);
    digitalWrite(led5, HIGH);
    digitalWrite(led6, LOW);
    digitalWrite(led7, LOW);
    delay (time);
}

void f(){
    digitalWrite(led0, HIGH);
    digitalWrite(led1, LOW);
    digitalWrite(led2, HIGH);
    digitalWrite(led3, HIGH);

    digitalWrite(led4, LOW);
    digitalWrite(led5, HIGH);
    digitalWrite(led6, LOW);
    digitalWrite(led7, LOW);
    delay (time);
}

void g(){
    digitalWrite(led0, HIGH);
    digitalWrite(led1, HIGH);
    digitalWrite(led2, LOW);
    digitalWrite(led3, HIGH);

    digitalWrite(led4, LOW);
    digitalWrite(led5, HIGH);
    digitalWrite(led6, LOW);
    digitalWrite(led7, LOW);
    delay (time);
}

void h(){
    digitalWrite(led0, HIGH);
    digitalWrite(led1, HIGH);
    digitalWrite(led2, HIGH);
    digitalWrite(led3, LOW);

    digitalWrite(led4, LOW);
    digitalWrite(led5, HIGH);
    digitalWrite(led6, LOW);
    digitalWrite(led7, LOW);
    delay (time);
}

void i(){
    digitalWrite(led0, LOW);
    digitalWrite(led1, HIGH);
    digitalWrite(led2, HIGH);
    digitalWrite(led3, HIGH);

    digitalWrite(led4, LOW);
    digitalWrite(led5, LOW);
    digitalWrite(led6, HIGH);
    digitalWrite(led7, LOW);
    delay (time);
}

void j(){
    digitalWrite(led0, HIGH);
    digitalWrite(led1, LOW);
    digitalWrite(led2, HIGH);
    digitalWrite(led3, HIGH);

    digitalWrite(led4, LOW);
    digitalWrite(led5, LOW);
    digitalWrite(led6, HIGH);
    digitalWrite(led7, LOW);
    delay (time);
}

void k(){
    digitalWrite(led0, HIGH);
    digitalWrite(led1, HIGH);
    digitalWrite(led2, LOW);
    digitalWrite(led3, HIGH);

    digitalWrite(led4, LOW);
    digitalWrite(led5, LOW);
    digitalWrite(led6, HIGH);
    digitalWrite(led7, LOW);
    delay (time);
}

void l(){
    digitalWrite(led0, HIGH);
    digitalWrite(led1, HIGH);
    digitalWrite(led2, HIGH);
    digitalWrite(led3, LOW);

    digitalWrite(led4, LOW);
    digitalWrite(led5, LOW);
    digitalWrite(led6, HIGH);
    digitalWrite(led7, LOW);
    delay (time);
}

void m(){
    digitalWrite(led0, LOW);
    digitalWrite(led1, HIGH);
    digitalWrite(led2, HIGH);
    digitalWrite(led3, HIGH);

    digitalWrite(led4, LOW);
    digitalWrite(led5, LOW);
    digitalWrite(led6, LOW);
    digitalWrite(led7, HIGH);
    delay (time);
}

void n(){
    digitalWrite(led0, HIGH);
    digitalWrite(led1, LOW);
    digitalWrite(led2, HIGH);
    digitalWrite(led3, HIGH);

    digitalWrite(led4, LOW);
    digitalWrite(led5, LOW);
    digitalWrite(led6, LOW);
    digitalWrite(led7, HIGH);
    delay (time);
}

void o(){
    digitalWrite(led0, HIGH);
    digitalWrite(led1, HIGH);
    digitalWrite(led2, LOW);
    digitalWrite(led3, HIGH);

    digitalWrite(led4, LOW);
    digitalWrite(led5, LOW);
    digitalWrite(led6, LOW);
    digitalWrite(led7, HIGH);
    delay (time);
}

void p(){
    digitalWrite(led0, HIGH);
    digitalWrite(led1, HIGH);
    digitalWrite(led2, HIGH);
    digitalWrite(led3, LOW);

    digitalWrite(led4, LOW);
    digitalWrite(led5, LOW);
    digitalWrite(led6, LOW);
    digitalWrite(led7, HIGH);
    delay (time);
}

void all(){
    digitalWrite(led0, LOW);
    digitalWrite(led1, LOW);
    digitalWrite(led2, LOW);
    digitalWrite(led3, LOW);

    digitalWrite(led4, HIGH);
    digitalWrite(led5, HIGH);
    digitalWrite(led6, HIGH);
    digitalWrite(led7, HIGH);
    delay (1000);
}