#include <LiquidCrystal.h>

// LCD pins <--> Arduino pins
const int RS = 11, EN = 12, D4 = 2, D5 = 3, D6 = 4, D7 = 5;
LiquidCrystal lcd(RS, EN, D4, D5, D6, D7);
int Delay = 100;

byte customChar0[8] = {
  0b00000,
  0b01010,
  0b11111,
  0b11111,
  0b01110,
  0b00100,
  0b00000,
  0b00000
};

void setup()
{
  lcd.begin(16, 2); // set up number of columns and rows

  lcd.setCursor(0, 0); // move cursor to   (0, 0)
  lcd.print("The Heart Moves!");  

  lcd.createChar(0, customChar0);
  lcd.setCursor(0, 1); // move cursor to (2, 0)
  lcd.write((byte)0);  // print the custom char 0 at (2, 0)

}

void loop()
{
  for (int position = 0; position < 16; position++) {
    lcd.setCursor(position, 1); // Setting cursor to current position
    lcd.write((byte)0);         // Writing the heart character
    delay(Delay);
    lcd.setCursor(position, 1); // Setting cursor to current position
    lcd.print(" ");             // Clearing the heart character by printing space
  }

  // Move the heart from right to left
  for (int position = 15; position >= 0; position--) {
    lcd.setCursor(position, 1); // Setting cursor to current position
    lcd.write((byte)0);         // Writing the heart character
    delay(Delay);
    lcd.setCursor(position, 1); // Setting cursor to current position
    lcd.print(" ");             // Clearing the heart character by printing space
  }
}