/*
  Title: lcd_i2c_lucas
  Author: Lucas Lim 
  Date Created: 8/4/2019
  Last Modified: 9/4/2019
  Purpose: To display text to LCD display module with I2C adaptor. 
  Dispalying first text message and wait for 3 seconds before 
  displaying second message at pre-defeined position
*/

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

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

void setup()
{
  Wire.begin();
  
  // Initialize the LCD, must be called in order to initialize I2C communication
  lcd.begin();

  // Turn on the backlight
  lcd.backlight();
}

void loop()
{
  // Wait for 3 seconds
  delay(3000);
 
  //will set cursor to first column of first row
  lcd.setCursor(0, 0);

  // Print a message to the LCD
  // Message must be 16 characters length
  lcd.print("Testing");

  // Set cursor to first column of first row
  lcd.setCursor(0,1);
  
  // Print a message to the LCD
  lcd.print("1234567890123456");
  
  // Wait for 3 seconds
  delay(3000);
  
  // Clear the LCD
  lcd.clear();
  
  // Set cursor to fourth column of first row
  lcd.setCursor(3, 0);
  lcd.print("Lucas Lim");
  lcd.setCursor(0,1);
  lcd.print("Hello, world!");

  // Wait for 3 seconds
  delay(3000);
  
  // Clear the LCD
  lcd.clear();
}