byte inSer, str;
void setup() {
   pinMode(7, OUTPUT);
   pinMode(6, OUTPUT);
   pinMode(5, OUTPUT);
   Serial.begin(9600);
   Serial.println("Kontrol Led dari PC");
}

void loop() {
  inSer = Serial.read(); 
  str = char (inSer);
  switch(str){
    // Variasi Untuk LED 1
    case('1'):
      if (digitalRead(7) == LOW){
        for (int i = 0; i < 15; i++){
        digitalWrite(7, HIGH);
        delay(100);
        digitalWrite(7, LOW);
        delay(100);
        }
      }

      if (digitalRead(6) == LOW){
        for (int i = 0; i < 5; i++){
        digitalWrite(6, HIGH);
        delay(500);
        digitalWrite(6, LOW);
        delay(500);
        }
      }

      if (digitalRead(5) == LOW){
        for (int i = 0; i < 3; i++){
        digitalWrite(5, HIGH);
        delay(700);
        digitalWrite(5, LOW);
        delay(700); 
        }
      }  
      Serial.println("LED 1 Cepat, LED 2 Sedang, LED 3 Lambat "); break;

    // Variasi Untuk LED 2
    case('2'):
      if (digitalRead(7) == LOW){
        for (int i = 0; i < 3; i++){
        digitalWrite(7, HIGH);
        delay(700);
        digitalWrite(7, LOW);
        delay(700);
        }
      }

      if (digitalRead(6) == LOW){
        for (int i = 0; i < 15; i++){
        digitalWrite(6, HIGH);
        delay(100);
        digitalWrite(6, LOW);
        delay(100);
        }
      }

      if (digitalRead(5) == LOW){
        for (int i = 0; i < 5; i++){
        digitalWrite(5, HIGH);
        delay(500);
        digitalWrite(5, LOW);
        delay(500); 
        }
      }  
      Serial.println("LED 1 Lambat, LED 2 Cepat, LED 3 Sedang "); break;

   // Variasi Untuk LED 3
    case('3'):
      if (digitalRead(7) == LOW){
        for (int i = 0; i < 5; i++){
        digitalWrite(7, HIGH);
        delay(500);
        digitalWrite(7, LOW);
        delay(500);
        }
      }

      if (digitalRead(6) == LOW){
        for (int i = 0; i < 3; i++){
        digitalWrite(6, HIGH);
        delay(700);
        digitalWrite(6, LOW);
        delay(700);
        }
      }

      if (digitalRead(5) == LOW){
        for (int i = 0; i < 15; i++){
        digitalWrite(5, HIGH);
        delay(100);
        digitalWrite(5, LOW);
        delay(100); 
        }
      }  
      Serial.println("LED 1 Sedang, LED 2 Lambat, LED 3 dengan cepat "); break;
  }
}