int trigger_pin=14;
int echo_pin=26;
float d;
void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  pinMode(echo_pin, INPUT);
  pinMode(trigger_pin, OUTPUT);
  
}
int wdistance(){
   digitalWrite(trigger_pin, LOW);
   delay(100);
   digitalWrite(trigger_pin, HIGH);
   delay(100);
   digitalWrite(trigger_pin, LOW);
   d=pulseIn(echo_pin,HIGH);
   return(d*0.034/2)+1;
delay(1000);
}

void loop() {


  Serial.println(String(wdistance()));
delay(100);

}