const int tri=2;
const int ec=4;
long duration;
float distance;

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  pinMode(tri, OUTPUT);
  pinMode(ec,INPUT);
}


void loop() {
  // put your main code here, to run repeatedly:
  distance=getdistance();
  Serial.println("Distance:"+String(distance));
  delay(1000); // this speeds up the simulation
}
long getdistance()
{
  digitalWrite(tri,LOW);
  delayMicroseconds(2);
  digitalWrite(tri,HIGH);
  delay(10);
  digitalWrite(tri,LOW);
  duration=pulseIn(ec,HIGH);
  return(duration*0.034/2)+1;
}