int trigger=14;
int echo=26;
float d; 

void setup(){
Serial.begin(115200);
pinMode(echo,INPUT);
pinMode(trigger,OUTPUT);
}
int distance(){
  digitalWrite(trigger,LOW);
  delay(10);
  digitalWrite(trigger,HIGH);
  delay(10);
  digitalWrite(trigger,LOW);
  d= pulseIn(echo,HIGH);
  return(d*0.034/2)+1;
  delay(1000);
}
void loop(){
  Serial.println(String(distance()));
  delay(1000);
}