#include <Servo.h>
#include <LiquidCrystal_I2C.h>
Servo servo13;
int trigger = 2;
int echo = 3;
LiquidCrystal_I2C lcd(0x27,16,2);
void setup() {
 Serial.begin(9600);
 pinMode(trigger, OUTPUT);
 pinMode(echo, INPUT);
 digitalWrite(trigger, LOW);
 servo13.attach(13);
 servo13.write(180);
 lcd.init();
 lcd.backlight();
 }
void loop() {
  int dist = ultra();
if (dist<=200 && dist>=10)
{
  Serial.print(dist);
  Serial.println(" cm");
  servo13.write(75);
  //
  lcd.clear();
  lcd.setCursor(0,0);
  lcd.print("La distancia es:");
  lcd.setCursor(6,1);
  lcd.print(dist);
  lcd.print(" cm");
  delay(1000);
}
else
{
  Serial.println("Fuera de rango");
  //
  lcd.clear();
  lcd.setCursor(0,0);
  lcd.print("Fuera de Rango");
  servo13.write(0);
  delay(1000);
}
  
}
int ultra()
{
digitalWrite(trigger, HIGH);
delayMicroseconds(10);
digitalWrite(trigger, LOW);
float t = pulseIn(echo, HIGH);
float d = t/59;
return d;
}