#define led 4
#define ldr 32

void setup() {
  // put your setup code here, to run once:
  pinMode(led, OUTPUT);
  pinMode(ldr, INPUT);
  Serial.begin(115200);
  Serial.println("Hello, ESP32!");
  digitalWrite(led,LOW);
}

void loop() {
  // put your main code here, to run repeatedly:
  //digitalWrite(led, HIGH);
  digitalWrite(led, !digitalRead(ldr));
  delay(1000);
  //digitalWrite(led, LOW);
  //delay(1000); // this speeds up the simulation
}