#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C lcd(0x27, 20, 4);  
const int BUTTON = 18;
int row =0;
byte name0x0[] = { B01100, B00010, B11111, B00010, B11110, B11010, B00010, B00010 };
byte name0x1[] = { B00000, B00000, B11111, B10101, B10101, B11101, B00101, B00101 };
byte name0x2[] = { B00000, B00000, B11111, B00001, B01011, B10101, B10101, B10001 };


void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  Serial.println("Hello, ESP32!");
  //pinMode(BUTTON, INPUT);

  lcd.init();
  lcd.backlight();

  lcd.createChar(0, name0x0);
  lcd.setCursor(0,0);
  lcd.write(0);
  
  lcd.createChar(1, name0x1);
  lcd.setCursor(1, 0);
  lcd.write(1);
  
  lcd.createChar(2, name0x2);
  lcd.setCursor(2, 0);
  lcd.write(2);
}

void loop() {
  // put your main code here, to run repeatedly:
  delay(10); // this speeds up the simulation
}

void loop2() {
  // put your main code here, to run repeatedly:
  delay(10); // this speeds up the simulation
  if (row >3){
    row = 0;
  }
  print_msg("String data");
  if(digitalRead(BUTTON)){
    Serial.println("button pressed");
    row = row+1;
  }
}

void print_msg(String text){
  for (int i=0; i<=20-text.length(); i++){
    lcd.setCursor(i, row);
    lcd.print(text);
    delay(200);
    lcd.clear();
  }
}