int trig = 12;
int echo = 13;
int distance;



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

void loop() {
  digitalWrite(trig, HIGH);
  delay(100);
  digitalWrite(trig, LOW);
  int reading =(pulseIn(echo,HIGH));
  distance = (reading*0.034/2);
  Serial.println(distance);
  // put your main code here, to run repeatedly:
  delay(10); // this speeds up the simulation
}