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

LiquidCrystal_I2C lcd = LiquidCrystal_I2C(0x27, 16, 2);

void setup() {
Serial.begin(115200);
Serial.println("Hello, ESP32!");
lcd.init();  lcd.backlight();
lcd.setCursor(0, 0);
lcd.print("Hello, ESP32!");
delay(1000);
lcd.clear();
}

void loop() {
lcd.setCursor(0, 1);
lcd.print("IoT workshop"); delay(1000);
lcd.clear();
lcd.setCursor(0, 1);
lcd.print("lcd Test"); delay(1000);
lcd.clear();
}