changed behaviour in I2C LCD

Question

I reinstalled a previously working sketch to my UNO and now the behaviour of the lcd has changed.

Previously this example worked perfectly:

#include <Wire.h> 
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27,16,2); // set the LCD address to 0x27 for a 16 chars and 2 line display
void setup()
{
 lcd.init(); // initialize the lcd 
 // Print a message to the LCD.
 lcd.backlight();
 lcd.print("Hello, world!");
}
void loop()
{
}

Now it only displays the very first character 'H'

This version does work though:

#include <Wire.h> 
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27,16,2); // set the LCD address to 0x27 for a 16 chars and 2 line display
void setup()
{
 lcd.init(); // initialize the lcd 
 // Print a message to the LCD.
 lcd.backlight();
 lcd.print("H");
 lcd.print("e");
 lcd.print("l");
 lcd.print("l");
 lcd.print("o");
 lcd.print(" ");
 lcd.print("W");
 lcd.print("o");
 lcd.print("r");
 lcd.print("l");
 lcd.print("d"); 
}
void loop()
{
}

Can anyone shed me any light what is the reason of this change in behaviour and how to solve it?

Running version 1.8.3 on a W7pro PC

• VE7JRO: Where does it print the letter H, at position 0, 0? If not, try lcd.home(); right after lcd.backlight();.
• ON5MF Jurgen: ok thanks, I tried that but the result is exactly the same
• VE7JRO: I've tried both of your sketches and they work fine. What happens if you remove the "!" character from your first sketch?
• ON5MF Jurgen: Yes the IDE was updated pretty recently (v1.8.3), the library is the same as before (LiquidCrystal_I2C1602V1).
• ON5MF Jurgen: ok got it, see my answer, thanks for the suggestions

Answer 1

There seems to be an incompatibility between recent versions of the IDE and the library I was using.

Installing the latest version of the library from GitHub and replacing the lcd.init() command with lcd.begin() in my sketches solved the problem.

• user31481: Accept your own answer to close this question.
• ON5MF Jurgen: sorry, can't accept yet, I have to wait till tomorrow