Addicore 20 x 4 Serial LCD using I2C and Addicore Bi-Directional Level Converter

This post uses the same Addicore 20x4 Serial LCD that I used in this post.  However, this time I used an Addicore Level Converter instead of creating a circuit.  The Level Converter is easy to use, reasonably priced, and has 4 channels should you need them.  I've also posted an I2C library with it that was obtained from the DFRobot.com site.  The library, example code, and circuit are located here on github.  The example demonstrates how to define special characters and also simple animation.

 I tested the sketch with the F5529, CC3200, and the MSP432P410R.  It should work with a 2 line LCD as well but I haven't tried that since I don't have one with I2C.

Addicore 20 x 4 Serial LCD using I2C and BS170 MOSFETs

This is a very nice 20 column, 4 line display from Addicore - big and easy to read.  I've ordered several things from them recently and have been pleased.  They have free mailing in the U.S. for orders over $25 and are quick and responsive.  Recommended....

Here is what it looks like when up and running on the MSP430F5529 LaunchPad.

Note that this is a 5V device!  I've translated signals using BS170 MOSFETs and the following circuit.

I got it up and running easily using a library from DFRobot.

Here is the test code running in the display above.

//Using library from DFRobot.com
//Compatible with the Arduino IDE 1.0
//Library version:1.1
/*
 * 20x4 Serial LCD from Addicore
 * https://www.addicore.com/2004-20x4-Character-LCD-with-I2C-backpack-p/157.htm
 * Tested on MSP430F5529LP
 * NOTE: This is a 5V device!
 * Need to translate 3V3 <---> 5V (used two BS170 MOSFETs)
 * F Milburn   21 May 2015
*/
#include <Wire.h>
#include "LiquidCrystal_I2C.h"

LiquidCrystal_I2C lcd(0x27,20,4);  // set for a 20 character 4 line display

void setup()
{
  lcd.init();                      // initialize the lcd
  // LINE 0
  // Print a message to the LCD.
  lcd.backlight();
  lcd.print("First line");
}

void loop()
{
  // LINE 1 - Number of columns
  // set the cursor to column 0, line 1
  // (note: line 1 is the second row, since counting begins with 0):
  lcd.setCursor(0, 1);
  lcd.print("Second line");
 
  // LINE 2 - ENERGIA
  lcd.setCursor(0, 2);
  lcd.print("Third line");
 
  // LINE 3 - Count seconds
  lcd.setCursor(0, 3);
  lcd.print("Time since reset:");
  // print the number of seconds since reset:
  lcd.print(millis()/1000);
}