// include the library code:
#include <LiquidCrystal.h>
#include  <LiquidCrystal_I2C.h>

// initialize the library for I2C LCD
LiquidCrystal_I2C lcd_i2c(0x27, 16, 2); // I2C address 0x27, 16 column and 2 rows
 
// initialize the library with the numbers of the interface pins
LiquidCrystal lcd(19, 23, 18, 17, 16, 15);
 
void setup() {
  lcd_i2c.clear();              // clear display
  lcd.clear();
  // init I2C LCD & backlight
  lcd_i2c.init();
  lcd_i2c.backlight();
  lcd_i2c.print ( "I2C LCD." );
  // set up the LCD's number of columns and rows:
  lcd.begin(16, 4);
  // Print a message to the LCD.
  lcd.print("Normal LCD");
}
 
void loop() {

  // set the cursor to column 0, line 1
  // (note: line 1 is the second row, since counting begins with 0):
  lcd_i2c.setCursor(0, 1);
  // print the number of seconds since reset:
  lcd_i2c.print (millis()/1000);
  lcd_i2c.print ( "SECONDS" );
  delay(100);

  //Here cursor is placed on first position (col: 0) of the second line (row: 1) 
  lcd. setCursor (0, 1);
  // We write the number of seconds elapsed 
  lcd.print ( millis () / 1000);
  lcd.print ( "SECONDS" );
  delay (100);
}