#define BUTTON_PIN D2
#define POT_PIN A0
#define LED_PIN D13
void setup() {
  pinMode(BUTTON_PIN, INPUT_PULLUP);
  pinMode(LED_PIN, OUTPUT);
}
void loop(){
  bool buttonState = digitalRead(BUTTON_PIN) == LOW;
    int potValue = analogRead(POT_PIN);
    bool potAtHalf = potValue > 512;

    if(buttonState && potAtHalf){
      digitalWrite(LED_PIN, HIGH);
    } else {
      digitalWrite(LED_PIN, LOW);
    }
}