int trig = 27;
int echo = 26;
int distance;



void setup() {

// put your setup code here, to run once:
  Serial.begin(115200);
  pinMode(trig, OUTPUT);
  pinMode(echo,INPUT);
  pinMode(25, OUTPUT);
  Serial.println("Hello, ESP32!");
}

void loop() {
  digitalWrite(trig,HIGH);
  delay(100);
  digitalWrite(trig,LOW);
  int reading = pulseIn(echo,HIGH);
  distance = (reading * 0.034/2);
  Serial.println(distance);
  if (distance > 200)
  {
    digitalWrite(25, HIGH);
  }
  else
  {
    digitalWrite(25, LOW);
  }
    // put your main code here, to run repeatedly:
   // this speeds up the simulation
}