int buttonPinR = 2;
int buttonPinG = 3;
int buttonPinB = 4;
int buttonPinY = 5;
int ledPinR = 6;
int ledPinG = 7;
int ledPinB = 8;
int ledPinY = 9;
int buttonPingRESET = 10;

bool kunci = false;

void setup() {
  pinMode(buttonPinR, INPUT_PULLUP);  
  pinMode(buttonPinG, INPUT_PULLUP);
  pinMode(buttonPinB, INPUT_PULLUP);
  pinMode(buttonPinY, INPUT_PULLUP);
  pinMode(ledPinR, OUTPUT);
  pinMode(ledPinG, OUTPUT);
  pinMode(ledPinB, OUTPUT);
  pinMode(ledPinY, OUTPUT);
  pinMode(buttonPingRESET, INPUT_PULLUP);

}

void loop() {
  if(kunci == false){               
    if(digitalRead (buttonPinR) == LOW){       
      digitalWrite(ledPinR, HIGH);        
      kunci = true;                     
    }
    else if(digitalRead (buttonPinG) == LOW){
      digitalWrite(ledPinG, HIGH);
      kunci = true;
    }
    else if(digitalRead (buttonPinB) == LOW){
      digitalWrite(ledPinB, HIGH);
      kunci = true;
    }
    else if(digitalRead (buttonPinY) == LOW){
      digitalWrite(ledPinY, HIGH);
      kunci = true;
    }
  }
  else{                             
    if(digitalRead (buttonPingRESET) == LOW){
      kunci = false;                
      digitalWrite(ledPinR, LOW);
      digitalWrite(ledPinG, LOW);
      digitalWrite(ledPinB, LOW);
      digitalWrite(ledPinY, LOW);
      delay(200);
    }
  }


}