const int lampu1 = 5;
const int lampu2 = 4;

const int jumlahkedip = 10;
const int waktukedip = 750;

void setup() {
  // put your setup code here, to run once:
pinMode(lampu1, OUTPUT);
pinMode(lampu2, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  for (int i = 0; i < jumlahkedip ; i++) {
      int intensitas = map(i, 0, jumlahkedip - 1, 255, 0);

    analogWrite(lampu1, intensitas);
    digitalWrite(lampu2, LOW);
    delay(waktukedip);

    digitalWrite(lampu1, LOW);

    analogWrite(lampu2, intensitas);
    delay(waktukedip);

    digitalWrite(lampu2, LOW);
  }

  digitalWrite(lampu1, LOW);
  digitalWrite(lampu2, LOW);

  while (true) {
  }
}