// Forum: https://forum.arduino.cc/t/lcd-i2c-doesn-t-display-words/1192923
// This Wokwi project: https://wokwi.com/projects/382269134026795009
//
// Is the Adafruit LiquidCrystal library compatible with the common
// LCD I2C displays ? No, it is not compatible.

#include <Adafruit_LiquidCrystal.h>

Adafruit_LiquidCrystal lcd(0x27);

void setup()
{
  Serial.begin(115200);

  if (!lcd.begin(16, 2)) {
    Serial.println("Could not init backpack. Check wiring.");
    while(1);
  }
  Serial.println("Backpack init'd.");

  // Print a message to the LCD.
  lcd.print("hello, world!");
}

void loop()
{
  lcd.setCursor(0, 1);
  // print the number of seconds since reset:
  lcd.print(millis()/1000);

  lcd.setBacklight(HIGH);
  delay(500);
  lcd.setBacklight(LOW);
  delay(500);
}