#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C lcd(0x27,16,2);  // set the LCD address to 0x3F for a 16 chars and 2 line display

// Make custom characters:
byte B_char[] = {
  B11110,
  B10001,
  B11110,
  B10001,
  B10001,
  B11110,
  B00000,
  B00000
};

byte S_char[] = {
  B01110,
  B10001,
  B01100,
  B00010,
  B10001,
  B01110,
  B00000,
  B00000
};


void setup() {
  // Specify the LCD's number of columns and rows:
  lcd.begin(16, 2);
  
  // Create new characters:
  lcd.createChar(0, B_char);
  lcd.createChar(1, S_char);
  
  // Clears the LCD screen:
  lcd.clear();
}

void loop() {
  
  lcd.setCursor(0, 0);
  lcd.write(byte(0)); 

  
  lcd.setCursor(15, 0);
  lcd.write(byte(1)); 

  delay(2000); // Display characters for 2 seconds

  // Clear the screen
  lcd.clear();

  
  for (int i = 0; i <= 6; ++i) {
    lcd.setCursor(i, 0);
    lcd.write(' '); 
    
    lcd.setCursor(15 - i, 0);
    lcd.write(' '); 
    
    lcd.setCursor(i + 1, 0);
    lcd.write(byte(0)); 
    
    lcd.setCursor(15 - (i + 1), 0);
    lcd.write(byte(1)); 
    
    delay(200);
  }

  delay(2000); // Display characters for 2 seconds before repeating
}