//explained to students
int aaa=4;
void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  Serial.println("Hello, ESP32!");
  pinMode(14, OUTPUT);
  pinMode(aaa, INPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  //digitalWrite(14, HIGH);
  //delay(1000); // this speeds up the simulation
  //digitalWrite(14,LOW);
  //Serial.println("HELLO");
  //delay(1000);
int a=digitalRead(aaa);
if(a==1)
{
  digitalWrite(14,HIGH);
}
else
{
digitalWrite(14, LOW);
}
}