LCD reactive bot

1#include <Wire.h>
2#include <LiquidCrystal_I2C.h>
3#include <Ultrasonic.h>
4LiquidCrystal_I2C  lcd (0x27, 16, 2); //Creating lcd object
5Ultrasonic ultrasonic1 (13, 12); //Creating  ultrasonic1 object
6Ultrasonic ultrasonic2 (11, 10); //Creating ultrasonic2 object
7int  val1; //variable to store the right Ultrasonic sensor reading values
8int val2;  //variable to store the left Ultrasonic sensor reading values
9int sensor = 2;  //PIR sensor attached to digital pin 2
10int ldr = A0; //LDR attached to analog  pin 0
11int ldrvalue = 0; //variable to store the LDR reading values
12int led  = 3; //1º LED attached to digital pin 3
13int led1 = 4; //2º LED attached to digital  pin 4
14void setup() {
15  lcd.init(); //initialize the Display
16  pinMode(sensor,  INPUT); //sensor defined as input
17  pinMode(led, OUTPUT); //1º LED defined as  output
18  pinMode(led1, OUTPUT); //2º LED defined as output
19  pinMode(ldr,  INPUT); //LDR defined as input
20}
21
22void loop() {
23  val1 = ultrasonic1.Ranging(CM);  //storing ultrasonic1 reading values in val1
24  val2 = ultrasonic2.Ranging(CM);  //storing ultrasonic2 reading values in val2
25  ldrvalue = analogRead(ldr); //storing  LDR reading values in ldrvalue
26  if (digitalRead(sensor) == HIGH) { //if PIR  sensor detects movement, turns on the Display backlight
27    lcd.setBacklight(HIGH);
28  }
29  else { //if not, turns off the backlight 
30    lcd.setBacklight(LOW);
31  }
32  if (ldrvalue < 300) { //if LDR don't detect luminosity, turn the LEDs on
33    digitalWrite(led, HIGH);
34    digitalWrite(led1, HIGH);
35  }
36  else {  //if not, turn the LEDs off
37    digitalWrite(led, LOW);
38    digitalWrite(led1,  LOW);
39  } 
40  if (val1 < 20) { //if the right ultrasonic sensor detects proximity,  the face eyes go to right
41    lcd.clear();
42    lcd.print("O");
43    lcd.setCursor(9,  0);
44    lcd.print("O");
45    lcd.setCursor(6, 1);
46    lcd.print("____");  //the mouth
47    delay(50);
48  }
49  else if (val2 < 20) { //if the left ultrasonic  sensor detects proximity, the face eyes go to left
50    lcd.clear();
51    lcd.setCursor(6,  0);
52    lcd.print("O");
53    lcd.setCursor(15, 0);
54    lcd.print("O");
55    lcd.setCursor(6, 1);
56    lcd.print("____");
57    delay(50);
58  }
59  else { //else, the face don't move 
60    lcd.clear();
61    lcd.setCursor(3,  0);
62    lcd.print("O");
63    lcd.setCursor(12, 0);
64    lcd.print("O");
65    lcd.setCursor(6, 1);
66    lcd.print("____");
67    delay(50);
68  }
69}