بررسی کد نوشته شده برای روشن شدن LED ها به صورت سه تایی با آردوینو NANO

سلام و عرض ادب خدمت جناب مهندس معین و دوستان همونطور که فرمودید 3 تا 3 تا LED هارو تونستم روشن کنم الان هم کدش رو خدمتتون ارسال می کنم :

void loop() {

digitalWrite(13,HIGH);

digitalWrite(14,HIGH);

digitalWrite(15, HIGH);

digitalWrite(16, LOW);

digitalWrite(17, LOW);

digitalWrite(18, LOW);

digitalWrite(19, LOW);

digitalWrite(3, LOW);

digitalWrite(4, LOW);

digitalWrite(5, LOW);

delay(100);

digitalWrite(13,LOW);

digitalWrite(14,HIGH);

digitalWrite(15, HIGH);

digitalWrite(16, HIGH);

digitalWrite(17, LOW);

digitalWrite(18, LOW);

digitalWrite(19, LOW);

digitalWrite(3, LOW);

digitalWrite(4, LOW);

digitalWrite(5, LOW);

delay(100);

digitalWrite(13,LOW);

digitalWrite(14,LOW);

digitalWrite(15, HIGH);

digitalWrite(16, HIGH);

digitalWrite(17, HIGH);

digitalWrite(18, LOW);

digitalWrite(19, LOW);

digitalWrite(3, LOW);

digitalWrite(4, LOW);

digitalWrite(5, LOW);

delay(100);

digitalWrite(13,LOW);

digitalWrite(14,LOW);

digitalWrite(15, LOW);

digitalWrite(16, HIGH);

digitalWrite(17, HIGH);

digitalWrite(18, HIGH);

digitalWrite(19, LOW);

digitalWrite(3, LOW);

digitalWrite(4, LOW);

digitalWrite(5, LOW);

delay(100);

digitalWrite(13,LOW);

digitalWrite(14,LOW);

digitalWrite(15, LOW);

digitalWrite(16, LOW);

digitalWrite(17, HIGH);

digitalWrite(18, HIGH);

digitalWrite(19, HIGH);

digitalWrite(3, LOW);

digitalWrite(4, LOW);

digitalWrite(5, LOW);

delay(100);

digitalWrite(13,LOW);

digitalWrite(14,LOW);

digitalWrite(15, LOW);

digitalWrite(16, LOW);

digitalWrite(17, LOW);

digitalWrite(18, HIGH);

digitalWrite(19, HIGH);

digitalWrite(3, HIGH);

digitalWrite(4, LOW);

digitalWrite(5, LOW);

delay(100);

digitalWrite(13,LOW);

digitalWrite(14,LOW);

digitalWrite(15, LOW);

digitalWrite(16, LOW);

digitalWrite(17, LOW);

digitalWrite(18, LOW);

digitalWrite(19, HIGH);

digitalWrite(3, HIGH);

digitalWrite(4, HIGH);

digitalWrite(5, LOW);

delay(100);

digitalWrite(13,LOW);

digitalWrite(14,LOW);

digitalWrite(15, LOW);

digitalWrite(16, LOW);

digitalWrite(17, LOW);

digitalWrite(18, LOW);

digitalWrite(19, LOW);

digitalWrite(3, HIGH);

digitalWrite(4, HIGH);

digitalWrite(5, HIGH);

delay(100);

digitalWrite(13,LOW);

digitalWrite(14,LOW);

digitalWrite(15, LOW);

digitalWrite(16, LOW);

digitalWrite(17, LOW);

digitalWrite(18, LOW);

digitalWrite(19, HIGH);

digitalWrite(3, HIGH);

digitalWrite(4, HIGH);

digitalWrite(5, LOW);

delay(100);

digitalWrite(13,LOW);

digitalWrite(14,LOW);

digitalWrite(15, LOW);

digitalWrite(16, LOW);

digitalWrite(17, LOW);

digitalWrite(18, HIGH);

digitalWrite(19, HIGH);

digitalWrite(3, HIGH);

digitalWrite(4, LOW);

digitalWrite(5, LOW);

delay(100);

digitalWrite(13,LOW);

digitalWrite(14,LOW);

digitalWrite(15, LOW);

digitalWrite(16, LOW);

digitalWrite(17, HIGH);

digitalWrite(18, HIGH);

digitalWrite(19, HIGH);

digitalWrite(3, LOW);

digitalWrite(4, LOW);

digitalWrite(5, LOW);

delay(100);

digitalWrite(13,LOW);

digitalWrite(14,LOW);

digitalWrite(15, LOW);

digitalWrite(16, HIGH);

digitalWrite(17, HIGH);

digitalWrite(18, HIGH);

digitalWrite(19, LOW);

digitalWrite(3, LOW);

digitalWrite(4, LOW);

digitalWrite(5, LOW);

delay(100);

digitalWrite(13,LOW);

digitalWrite(14,LOW);

digitalWrite(15, HIGH);

digitalWrite(16, HIGH);

digitalWrite(17, HIGH);

digitalWrite(18, LOW);

digitalWrite(19, LOW);

digitalWrite(3, LOW);

digitalWrite(4, LOW);

digitalWrite(5, LOW);

delay(100);

digitalWrite(13,LOW);

digitalWrite(14,HIGH);

digitalWrite(15, HIGH);

digitalWrite(16, HIGH);

digitalWrite(17, LOW);

digitalWrite(18, LOW);

digitalWrite(19, LOW);

digitalWrite(3, LOW);

digitalWrite(4, LOW);

digitalWrite(5, LOW);

delay(100);

digitalWrite(13,HIGH);

digitalWrite(14,HIGH);

digitalWrite(15, HIGH);

digitalWrite(16, LOW);

digitalWrite(17, LOW);

digitalWrite(18, LOW);

digitalWrite(19, LOW);

digitalWrite(3, LOW);

digitalWrite(4, LOW);

digitalWrite(5, LOW);

}