/*
  LiquidCrystal Library - Hello World

  Demonstrates the use a 20x2 LCD display.  The LiquidCrystal
  library works with all LCD displays that are compatible with the
  Hitachi HD44780 driver.

  This sketch prints "Hello World!" to the LCD
  and shows the time.

  Library originally added 18 Apr 2008
  by David A. Mellis
  library modified 5 Jul 2009
  by Limor Fried (http://www.ladyada.net)
  example added 9 Jul 2009
  by Tom Igoe
  modified 22 Nov 2010
  by Tom Igoe

  This example code is in the public domain.

*/

// Include the library code:
#include <LiquidCrystal_mx300N2.h>

// Initialize the library with the numbers of the interface pins
//  rs, enable, d0, d1, d2, d3, d4, d5, d6, d7
LiquidCrystal_mx300N2 lcd(12, 13, 4, 5, 6, 7, 8, 9, 10, 11);

uint8_t rows = 2;
uint8_t cols = 20;

unsigned long count;

void setup() {
  // Set up the LCD's number of columns and rows:
  lcd.begin(cols, rows);

  // Print a message to the LCD.
  lcd.print("hello, world!");
  delay(1000);
  lcd.clear();
  lcd.print("Time passed");
}

void loop() {

  count = millis() / 1000;
  lcd.clear();
//  lcd.autoscroll();
/*
  // Print each digit, starting at least significant
  //  and shift count one digit
  lcd.setBigfont();
  lcd.setCursor(19, 0);
  lcd.print(count % 10);  // ones
  count = count / 10;
  lcd.setCursor(14, 0);
  lcd.print(count % 10);  // tens
  count = count / 10;
  lcd.setCursor(9, 0);
  lcd.print(count % 10);  // hundreds
  count = count / 10;
  lcd.setCursor(4, 0);
  lcd.print(count % 10);  // thousands
*/

  // Print four consecutive digits anwhere on screen
  lcd.setBigfont();
  lcd.setCursor(random(16), 0);
  if (count < 1000) lcd.print('0');
  if (count < 100) lcd.print('0');
  if (count < 10) lcd.print('0');
  lcd.print(count % 10000);

  delay(955);
}