#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x26,20,4);
void setup() {
  Serial.begin(115200);
  Serial.println("Hello, ESP32!");
  lcd.init();
  lcd.backlight();
}
void loop() {
lcd.setCursor(0,0);
lcd.print("Hello");
}