#define ledred 1
#define ledblue 2
#define buttonspeedUP 3

void setup() {
  pinMode (ledred, OUTPUT);
  pinMode (ledblue, OUTPUT);

  Serial.begin(9600);
  pinMode(buttonspeedUP, INPUT);
  // keadaan default 👇
  digitalWrite(buttonspeedUP, HIGH);

}


void speedMode(int option) {
  if (option == 1) {                // mode kencang
    digitalWrite (ledred, HIGH);
    delay(500);
    digitalWrite (ledred, LOW);
    digitalWrite (ledblue, HIGH);
    delay(500);
    digitalWrite(ledblue, LOW);
  } else {                         // mode lambat
    digitalWrite (ledred, HIGH);
    delay(1000);
    digitalWrite (ledred, LOW);
    digitalWrite (ledblue, HIGH);
    delay(1000);
    digitalWrite(ledblue, LOW);

  }
}


void loop() {
  int isbuttonspeedpressed = digitalRead(buttonspeedUP);

  if (isbuttonspeedpressed == 0) { // jika tombol di pencet
    speedMode(1);
  }else {
    speedMode(0);
  }

}