MQSEN and ULTRA in web - Wokwi ESP32, STM32, Arduino Simulator

#include <WiFi.h>
#include <WebServer.h>

#define MQPIN 32
#define MQSEN V0

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

WebServer Server(80);

String createwebpage(int MQVALUE)
{
  String html = R"rawliteral(
  <html>
  <head>
  <meta http-equiv="refresh" content="5">
  <style>
    body {
      background: white;
      font-family: Arial;
      padding: 20px;
    }

    .bar {
      background: #ddd;
      border-radius: 25px;
      height: 30px;
      width: 100%;
      overflow: hidden;
      margin-bottom: 20px;
    }

    .fill {
      height: 100%;
      background: green;
      border-radius: 25px;
      text-align: right;
      padding-right: 10px;
      line-height: 30px;
      color: white;
    }
  </style>
  </head>

  <body>
  <h2>ESP32 SENSOR DATA</h2>
  <h3>MQ GAS</h3>

  <div class="bar">
    <div class="fill" style="width:MQVALUE%;">
    MQVALUE%
      </div>
  </div>

  </body>
  </html>
  )rawliteral";

  html.replace("MQVALUE", String(MQVALUE));

  return html;
}

void handleRoot()
{
  int mq = analogRead(MQPIN);
  int MQVALUE=map(mq, 0, 4095, 0, 100);

  Server.send(200, "text/html", createwebpage(MQVALUE));
}

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

  WiFi.begin(ssid, pass);
  while (WiFi.status() != WL_CONNECTED)
  {
    delay(500);
  }

  Serial.print("IP Address: ");
  Serial.println(WiFi.localIP());

  Server.on("/", handleRoot);
  Server.begin();
}

void loop()
{
  Server.handleClient();
}