1. Arduino GPIO Basics

Question.3

Jeremy has built the following circuit. Which of the following codes will turn ON LED?

void setup() {
  pinMode(13, INPUT);
  digitalWrite(13,1);
}

void setup() {
  pinMode(13, OUTPUT);
  digitalWrite(13,1);
}

void setup() {
  pinMode(13, INPUT_PULLUP);
  digitalWrite(13,1);
}

void setup() {
  digitalWrite(13, INPUT);
}