I2C LCD using micro:bit

MicrobitI2CLCD.ino

#include <Wire.h> 
#include <LiquidCrystal_I2C.h>

#define LCD_ADDR  0x3F
#define LCD_COL   16
#define LCD_ROW   2
LiquidCrystal_I2C lcd(LCD_ADDR, LCD_COL, LCD_ROW);

void setup()
{
  Serial.begin(115200);
  Serial.println("Display on I2C LCD Using micro:bit");

  pinMode(PIN_BUTTON_A, INPUT);
  pinMode(PIN_BUTTON_B, INPUT);
  
  lcd.init();
  lcd.backlight();

  lcd.clear();
  lcd.print("Display I2C LCD ");
  lcd.setCursor(0, 1);
  lcd.print("Using micro:bit ");

  delay(2000);

  lcd.clear();
  lcd.print("Press the");
  lcd.setCursor(0, 1);
  lcd.print("button");
}

void loop()
{
  if (digitalRead(PIN_BUTTON_A) == LOW) {
    Serial.println("Button A pressed.");
    lcd.clear();
    lcd.print("Button A pressed");
    while (digitalRead(PIN_BUTTON_A) == LOW);
    lcd.clear();
    lcd.print("Press the");
    lcd.setCursor(0, 1);
    lcd.print("button");
    delay(100);
  }
  
  else if (digitalRead(PIN_BUTTON_B) == LOW) {
    Serial.println("Button B pressed.");
    lcd.clear();
    lcd.print("Button B pressed");
    while (digitalRead(PIN_BUTTON_B) == LOW);
    lcd.clear();
    lcd.print("Press the");
    lcd.setCursor(0, 1);
    lcd.print("button");
    delay(100);
  }
}