Wokwi - Online ESP32, STM32, Arduino Simulator

#include <ESP8266WiFi.h> 

const char* ssid = "mahardika";
const char* password = "mahardika";
 
int ledPin = 13;

WiFiServer server(80);
 
void setup() {
  Serial.begin(115200);
  pinMode(ledPin, OUTPUT);
  digitalWrite(ledPin, LOW);  
  Serial.println(""); 
  Serial.print("Menghubungkan ");
  Serial.println(ssid); 
  
  WiFi.begin(ssid, password); 
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print("-");
  }  
  Serial.println("Terhubung");  
  server.begin(); //membuat koneksi sebagai server
  Serial.println("Memulai server"); 
  Serial.print("Alamat server : ");
  Serial.print("http://");
  Serial.print(WiFi.localIP());
  Serial.println("/"); 
}
 
void loop() {  
  WiFiClient client = server.available();
  if (!client) {
    return;
  }
 
  Serial.println("Ada Klien");
  while(!client.available()){
    delay(1);
  }
 
  String request = client.readStringUntil('\r');
  Serial.println(request);
  client.flush();
 
  int value = LOW;
  if (request.indexOf("/LED=ON") != -1)  {
    digitalWrite(ledPin, HIGH);
    delay(500);
    digitalWrite(ledPin, LOW);
    delay(500);
    value = HIGH;
  }
  if (request.indexOf("/LED=OFF") != -1)  {
    digitalWrite(ledPin, LOW);
    value = LOW;
  } 
 
  client.println("HTTP/1.1 200 OK");
  client.println("Content-Type: text/html");
  client.println(""); 
  client.println("<!DOCTYPE HTML>");
  client.println("<html>");
 
  client.print("Status LED : ");
 
  if(value == HIGH) {
    client.print("On");
  } 
  else {
    client.print("Off");
  }
  client.println("<br><br>");
  client.println("<a href=\"/LED=ON\"\"><button>Turn On </button></a>");
  client.println("<a href=\"/LED=OFF\"\"><button>Turn Off </button></a><br />");  
  client.println("</html>"); 
  delay(1);
  Serial.println("Klien Terputus");
  Serial.println(""); 
}