void setup() {
// put your setup code here, to run once:
  Serial.begin(115200);
  Serial.println("Hello, ESP32!");
  pinMode(26, INPUT);
  pinMode(14, OUTPUT);
  pinMode(5, OUTPUT);
}
long wdistance(){
 digitalWrite(14,LOW);
 delay(10);
 digitalWrite(14,HIGH);
 delay(100);
 digitalWrite(14,LOW);
 float d=pulseIn(26,HIGH);
 return(d*0.034/2)+1;

 delay(1000);
}

void loop() {
  // put your main code here, to run repeatedly:
  int c=wdistance();
  Serial.println(String(c));
  if(c>=200){
  digitalWrite(5, HIGH);
  Serial.println("detected");
  }
  else{
  digitalWrite(5,LOW);
 Serial.println("not Detected");
  }
  delay(1000); // this speeds up the simulation
}