int trig = 26;
int echo = 27;
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);
}