#define tombol1 2
#define tombol2 3
#define tombol3 4
#define led1 5
#define led2 6
#define led3 7

void setup() {
  // put your setup code here, to run once:
  
  Serial.begin(9600); //kecepatan default
  pinMode(tombol1, INPUT_PULLUP);
  pinMode(led1, OUTPUT);
  pinMode(tombol2, INPUT_PULLUP);
  pinMode(led2, OUTPUT);
  pinMode(tombol3, INPUT_PULLUP);
  pinMode(led3, OUTPUT);

}

void loop() {
  // put your main code here, to run repeatedly:
  
  mati();
  int kondisiTombol1 = digitalRead(tombol1);
  int kondisiTombol2 = digitalRead(tombol2);
  int kondisiTombol3 = digitalRead(tombol3);
  //Serial.println(kondisiTombol);
  if(kondisiTombol1==0){
    digitalWrite(led1, HIGH);
    digitalWrite(led2, LOW);
    digitalWrite(led3, LOW);
  }if(kondisiTombol2==0){
    digitalWrite(led1, LOW);
    digitalWrite(led2, HIGH);
    digitalWrite(led3, LOW);
  }if(kondisiTombol3==0){
    digitalWrite(led1, LOW);
    digitalWrite(led2, LOW);
    digitalWrite(led3, HIGH);
  }
}

void mati(){
    digitalWrite(led1, LOW);
    digitalWrite(led2, LOW);
    digitalWrite(led3, LOW);
}