Arduino LiquidCrystal_PCF8574 test sketches

LiquidCrystal_PCF8574__HelloWorld.ino

#include <LiquidCrystal_PCF8574.h>
#include <Wire.h>

// LiquidCrystal_PCF8574 lcd(LCD_ADDRESS); → Default = 0x27;
LiquidCrystal_PCF8574 lcd(0x27);

void setup() { 
    Serial.begin(115200);
    Serial.println("LiquidCrystal_PCF8574__HelloWorld");
    
    lcd.begin(16, 2);
    
    lcd.setBacklight(255);
    lcd.home();
    lcd.clear();
    lcd.print("Hello LCD");
    delay(1000);
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("Hello World! :-)");
    lcd.setCursor(0, 1);
    lcd.print("(: Hallo Welt :)");
}

void loop(){
}

LiquidCrystal_PCF8574__HelloWorld_20x4.ino

#include <LiquidCrystal_PCF8574.h>
#include <Wire.h>

// LiquidCrystal_PCF8574 lcd(LCD_ADDRESS); → Default = 0x27;
LiquidCrystal_PCF8574 lcd(0x27);

void setup() { 
    Serial.begin(115200);
    Serial.println("LiquidCrystal_PCF8574__HelloWorld");
    
    lcd.begin(20, 4);
    
    lcd.setBacklight(255);
    lcd.home();
    lcd.clear();
    lcd.print("Hello LCD");
    delay(1000);
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("Hello World! :-) ***");
    lcd.setCursor(0, 1);
    lcd.print("Es scheint die Sonne");
    lcd.setCursor(0, 2);
    lcd.print("Und Ich hab lust auf");
    lcd.setCursor(0, 3);
    lcd.print("ein Leckeres eis ;-)");
}

void loop(){
}