int ldr = 35;
int led = 15;
void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  Serial.println("Hello, ESP32!");
  pinMode(ldr, INPUT);
  pinMode(led, OUTPUT);
}

void loop() {
  int sensor = analogRead(ldr);
  Serial.println(sensor);
  if (sensor >= 500){
    digitalWrite(led, HIGH);
  }
  if (sensor < 500){
    digitalWrite(led, LOW);
  }
  delay(1000);
}