// Blynk app settings (Replace with yours)
#define BLYNK_TEMPLATE_ID "TMPL6i2iCKGgK"
#define BLYNK_TEMPLATE_NAME "PLC Node"
#define BLYNK_AUTH_TOKEN "k0IP0MMrjIQppxdNsQOfvaGEvBIz922q"
#define BLYNK_PRINT Serial

#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>
#include <Wire.h> // Include for I2C communication
#include <LiquidCrystal_I2C.h> // Include for I2C LCD
int i=0;
int a=0;
// Define LCD and sensor pins
LiquidCrystal_I2C lcd(0x27, 20, 4); // I2C address, columns,

char auth[] = BLYNK_AUTH_TOKEN;

// WiFi credentials (Replace with yours)
char ssid[] = "Wokwi-GUEST";
char pass[] = "";

BLYNK_WRITE(V0)
{
  int pinValue = param.asInt(); // assigning incoming value from pin V1 to a variable
  if (pinValue == 1)
  
  // process received value
  lcd.backlight();
  lcd.setCursor(a,0);
  lcd.print(" B ");
  a=a+1;
}
BLYNK_WRITE(V1)
{
  int pinValue = param.asInt();
 if (pinValue == 1)
  
  // process received value
  lcd.backlight();
  lcd.setCursor(i,0);
  lcd.print(" A ");
  i=i+1;
}
BLYNK_WRITE(V2)
{
  int pinValue = param.asInt();
 if (pinValue == 1)
  
  // process received value
  lcd.init();
  lcd.backlight();
  lcd.setCursor(0, 3);
  lcd.print("");
}

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

  // Initialize I2C communication and LCD
  Wire.begin();
  lcd.init();
  lcd.backlight();

  // Set LCD display message
  lcd.print("Initializing...");


  // Connect to Blynk app
  Blynk.begin(BLYNK_AUTH_TOKEN, ssid, pass);
}

void loop() {
  Blynk.run();


}