const int led1 = 2;
const int led2 = 4;
const int button1 = 15;
const int button2 = 18;

void setup() {
  pinMode(led1, OUTPUT);
  pinMode(led2, OUTPUT);
  pinMode(button1, INPUT_PULLUP);
  pinMode(button2, INPUT_PULLUP);

  Serial.begin(115200);
}

void loop() {

  int stateButton1 = digitalRead(button1);
  int stateButton2 = digitalRead(button2);

  // Button 1 pressed → LED1 ON
  if (stateButton1 == LOW) {
    digitalWrite(led1, HIGH);
    digitalWrite(led2, LOW);
    Serial.println("Button 1 Pressed → LED1 ON");
  }

  // Button 2 pressed → BOTH LEDs ON
  else if (stateButton2 == LOW) {
    digitalWrite(led1, HIGH);
    digitalWrite(led2, HIGH);
    Serial.println("Button 2 Pressed → BOTH LEDs ON");
  }

  // No button pressed → all OFF
  else {
    digitalWrite(led1, LOW);
    digitalWrite(led2, LOW);
  }

  delay(100);
}