LCD

I2C_LCD.ino

#include <Wire.h> 
// https://bitbucket.org/fmalpartida/new-liquidcrystal/wiki/Home
#include <LiquidCrystal_I2C.h>

// addr, En, Rw, Rs, d4, d5, d6, d7, backlight, backlighPolarity
LiquidCrystal_I2C lcd(0x3F, 2, 1, 0, 4, 5, 6, 7, 3, 0);  // Set the LCD I2C address

void setup()
{
  pinMode(A2, OUTPUT);
  digitalWrite(A2, LOW);
  pinMode(A3, OUTPUT);
  digitalWrite(A3, HIGH);
    
  lcd.begin(16,2);
  lcd.home ();
  lcd.print("Hello,");  
  lcd.setCursor ( 0, 1 );
  lcd.print ("World");
}

void loop() {}