16x2 LCD with Leonardo via "LCM1602" - no characters

Other Hardware Displays
4

ubermick: I have also been having a hard time trying to get my "LCM1602 IIC" working.
I was able to get mine working in the end after a lot of hunting around.

I am still a total newbie to the Arduino.

Below is the code and the link to the library I used:

// Include Standard Wire Library
#include <Wire.h>

// Include I2C LCD Library (https://bitbucket.org/fmalpartida/new-liquidcrystal/downloads/LiquidCrystal_V1.2.1.zip)
#include <LiquidCrystal_I2C.h>

// Set the pins on the I2C chip used for LCD connections:
//                    addr, en,rw,rs,d4,d5,d6,d7,bl,blpol
LiquidCrystal_I2C lcd(0x20, 2, 1, 0, 4, 5, 6, 7, 3, POSITIVE); // Set the LCD I2C address 0x20


void setup()
{
  lcd.begin(16,2); // initialize the lcd
}

void loop()
{
  lcd.setCursor(2,0); //Start at character 3 on line 0
  lcd.print("Hello  World");
  lcd.setCursor(2,1); //Start at character 3 on line 1
  lcd.print("16 by 2 Line");    
}

I hope this is of some help to you.

Best Regards.