Sensor for parking spaces

#include <LiquidCrystal_I2C.h>
#include <Wire.h>

#include <Ultrasonic.h>

LiquidCrystal_I2C lcd(0x27,16,2);
Ultrasonic sensor_L(5, 4);
Ultrasonic sensor_R(6, 7);
int led_L = 9, led_R = 8;

void setup() {
  
  pinMode(led_L, OUTPUT);
  pinMode(led_R, OUTPUT);
  lcd.init(); 
  lcd.setBacklight(HIGH);
  lcd.clear(); 
}

void loop() {
  float cmMsec_L,cmMsec_R;
  long microsec_L = sensor_L.timing(), microsec_R = sensor_R.timing();
  cmMsec_L = sensor_L.convert(microsec_L, Ultrasonic::CM);
  cmMsec_R = sensor_R.convert(microsec_R, Ultrasonic::CM);
  
  if(cmMsec_L<10.0){
    lcd.setCursor(0,0);
    lcd.print("VAGA 1 - OCUPADA");
    digitalWrite(led_L, LOW);
  }
  else{
    lcd.setCursor(0,0);
    lcd.print("VAGA 1 - LIVRE");
    digitalWrite(led_L, HIGH);
  }

  if(cmMsec_R < 10.0){
    lcd.setCursor(0,1);
    lcd.print("VAGA 2 - OCUPADA");
    digitalWrite(led_R, LOW);
  }
  else{
    lcd.setCursor(0,1);
    lcd.print("VAGA 2 - LIVRE");
    digitalWrite(led_R, HIGH);
  }
  delay(500);
  lcd.clear();
}