int trigger=12;
int echo=14;
float distance;

void setup() {
Serial.begin(115200);
pinMode(trigger, OUTPUT);
pinMode(echo, INPUT);
pinMode(18, OUTPUT);
pinMode(5, OUTPUT);
pinMode(17, OUTPUT);

}

int ultraperformance(){
digitalWrite(trigger, LOW);
delay(10);
digitalWrite(trigger, HIGH);
delay(100);
digitalWrite(trigger,LOW);
distance=pulseIn(echo, HIGH);
return(distance*0.034/2)+1;

}
void loop() {
  
 int actual_distance= ultraperformance();
 Serial.println(actual_distance);// put your main code here, to run repeatedly:
  delay(10); // this speeds up the simulation 
int trigger=12;
int echo=14;
float distance;

void setup() 
Serial.begin(115200);