esp32 con rfid y notificaciones en telegram

#include <Servo.h>
#include <SPI.h>
#include <MFRC522.h>
#include <Wire.h>
#include <WiFi.h>
#include <WiFiClientSecure.h>
#include <UniversalTelegramBot.h>
#include <ArduinoJson.h>

// Wifi network station credentials
#define WIFI_SSID "Red34"
#define WIFI_PASSWORD "Desaxtr3"
// Telegram BOT Token (Get from Botfather)
#define BOT_TOKEN "Tu Toquen"

// Use @myidbot (IDBot) to find out the chat ID of an individual or a group
// Also note that you need to click "start" on a bot before it can
// message you
#define CHAT_ID "Tu Id"

WiFiClientSecure secured_client;
UniversalTelegramBot bot(BOT_TOKEN, secured_client);




const byte monUID[4] = {51, 66, 241, 11};  
bool valid=true;
#define PIN_LED_ROUGE 32
#define PIN_LED_VERTE 12
#define PIN_RST 17
#define PIN_SDA 5


const int servoPin = 14;
Servo myservo = Servo();

MFRC522 rfid(PIN_SDA, PIN_RST);

void setup()
{ 
  SPI.begin();
  rfid.PCD_Init();
  myservo.write(servoPin, 90);    // set the servo position (degrees)
  pinMode(PIN_LED_ROUGE, OUTPUT);
  pinMode(PIN_LED_VERTE, OUTPUT);
  Serial.begin(115200);
  Serial.println();

 // attempt to connect to Wifi network:
  Serial.print("Connecting to Wifi SSID ");
  Serial.print(WIFI_SSID);
  WiFi.begin(WIFI_SSID, WIFI_PASSWORD);
  secured_client.setCACert(TELEGRAM_CERTIFICATE_ROOT); // Add root certificate for api.telegram.org
  while (WiFi.status() != WL_CONNECTED)
  {
    Serial.print(".");
    delay(500);
  }
  Serial.print("\nWiFi connected. IP address: ");
  Serial.println(WiFi.localIP());

  Serial.print("Retrieving time: ");
  configTime(0, 0, "pool.ntp.org"); // get UTC time via NTP
  time_t now = time(nullptr);
  while (now < 24 * 3600)
  {
    Serial.print(".");
    delay(100);
    now = time(nullptr);
  }
  Serial.println(now);

  bot.sendMessage(CHAT_ID, "Bot started up", "");


}
void loop()
{

if (rfid.PICC_IsNewCardPresent()) // A tag/card is detected : Badge détecté 
{
  if (rfid.PICC_ReadCardSerial()) 
    {
    for (int i = 0; i < rfid.uid.size; i++) 
    {
    if (rfid.uid.uidByte[i] != monUID[i]) 
      {valid=false;}
    else 
      {valid=true;}
    }

    if (valid) 
      {
      digitalWrite(PIN_LED_VERTE, HIGH);
      myservo.write(servoPin, 0);    // set the servo position (degrees)
      bot.sendMessage(CHAT_ID, "Tarjeta Correcta", "");
      bot.sendMessage(CHAT_ID, "Puerta Abierta", "");
      delay(4000);
      digitalWrite(PIN_LED_VERTE, LOW);
      myservo.write(servoPin, 90);    // set the servo position (degrees)
      bot.sendMessage(CHAT_ID, "Puerta Cerrada", "");
      }
    else 
      { 
      digitalWrite(PIN_LED_ROUGE, HIGH);
      delay(1000);
      digitalWrite(PIN_LED_ROUGE, LOW);
      bot.sendMessage(CHAT_ID, "Tarjeta Incorrecta", "");
      }
    }
}
}

para mas informacion revisa la entrada anterior