#define BLYNK_TEMPLATE_ID "TMPL6hmArECK3"
#define BLYNK_TEMPLATE_NAME "LCD IoT"
#define BLYNK_AUTH_TOKEN "DQ6LM1U2uVLA4NsbfQK9qoxWJwjuJ9Us"

#include <BlynkSimpleEsp32.h>
#include <WiFi.h>
#include <LiquidCrystal_I2C.h>

char auth[] = BLYNK_AUTH_TOKEN;
char ssid[] = "Wokwi-GUEST";
char pass[] = "";

LiquidCrystal_I2C lcd(0x27,16,2);

BLYNK_WRITE(V0) {
  int vPin = param.asInt();
  lcd.clear();
  if(vPin == 1){
    lcd.setCursor(0,0);
    lcd.print("DISPLAY ON");
  }else{
    lcd.setCursor(0,0);
    lcd.print("DISPLAY OFF");
  }
}

void setup() {
  lcd.init();
  lcd.backlight();
  lcd.setCursor(0,0);
  Blynk.begin(auth,ssid,pass);
  lcd.print("Connected...");
}

void loop() {
  Blynk.run();
}