Wokwi - Online ESP32, STM32, Arduino Simulator

#include <WiFi.h>
//SSID e Senhas Wi-fi
const char* ssid = "esp";
const char* password = "wokwi@2022";
//Variáveis
String readString;
String leitura;
int sensorReading;
//Config Webserver na porta 80
WiFiServer server(80);

void setup() {
  Serial.begin(115200);
  Serial.println();
  Serial.print("Conectando-se a ");
  Serial.println(ssid);
 //Conexão wi-fi 
  WiFi.begin(ssid, password);

  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }

  Serial.println("");
  Serial.println("WiFi conectada.");
  Serial.println("Endereco de IP: ");
  Serial.println(WiFi.localIP());
  //Inicia webserver
  server.begin();
}
void loop() {
  //Aguarda acesso web e monta página html
  WiFiClient client = server.available();
  if (client) {
    while (client.connected()) {
      if (client.available()) {
        char c = client.read();

        if (readString.length() < 100) {
          readString += c;
        }

        if (c == '\n' ) {
          client.println("HTTP/1.1 200 OK");
          client.println("Content-Type: text/html");
          client.println();

          client.println("<!DOCTYPE html>");
          client.println("<head><meta charset=utf-8><title>ESP32 e HTML</title></head>");

          client.println("<body>");

          client.println("<h2>Entrada analógica</h2>");

          sensorReading = analogRead(34);
          leitura = String(sensorReading);
          Serial.println(sensorReading);

          client.println("<form>");
          client.println("<h3>ENTRADAS</h3>");
          client.println("Valor do Potenciômetro : " + leitura);
          client.println("<br><br>F5/Update -> Para atualizar");
          client.println("<input type=submit value= Update></h4>");
          client.println("<p></p></form>");
          client.println("</body>");
          client.println("</html>");

          delay(1);
          client.stop();
          readString = "";
        }
      }
    }
  }
}