// Ultrasonido + Servo
#include <Servo.h>
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27, 16,2);

Servo servo13;
int trigger = 2;
int echo = 3;

void setup()
{
  Serial.begin(9600);
  pinMode(trigger, OUTPUT);
  pinMode(echo, INPUT);
  digitalWrite(trigger, LOW);
  servo13.attach(13);
  servo13.write(75);
  //
  lcd.init();
  lcd.backlight();
  lcd.setCursor(0,0);
  lcd.print("LOS");
  lcd.setCursor(0,1);
  lcd.print("SPEAKERS");
  delay(2000);
}
void loop()
{
  int dist = ultra();
 
    if (dist<=290 && dist>=10){
      Serial.print("Distancia = ");
      Serial.print(dist);
      Serial.print(" cm");
      lcd.clear();
      lcd.setCursor(0,0);
      lcd.print("La distancia es ");
      lcd.setCursor(5,1);
      lcd.print(dist);
      lcd.print(" cm");
      delay(1000);
      
        if (dist<=140 && dist>=10){
          servo13.write(10);
          Serial.println("; Estoy a 10*");
        }
        else{
          servo13.write(150);
          Serial.println("; Estoy a 150*");
        }
    }
    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);
 
  long t = pulseIn(echo, HIGH);
  long d = t/59;
return d;
}