Wokwi - Online ESP32, STM32, Arduino Simulator

#include <WiFi.h>

// Masukkan SSID dan password WiFi Anda di sini
const char* ssid = "";
const char* password = "";

// Deklarasi pin LED yang akan dikendalikan
const int ledPin = 2; // Misalnya, GPIO2 pada ESP32

WiFiServer server(80);

void setup() {
  Serial.begin(115200);
  pinMode(ledPin, OUTPUT);

  // Menghubungkan ESP32 ke jaringan WiFi
  Serial.println();
  Serial.print("Menghubungkan ke ");
  Serial.println(ssid);
  WiFi.begin(ssid, password);

  int attemptCounter = 0;
  while (WiFi.status() != WL_CONNECTED && attemptCounter < 20) {
    delay(500);
    Serial.print(".");
    attemptCounter++;
  }

  if (WiFi.status() != WL_CONNECTED) {
    Serial.println("");
    Serial.println("Gagal terhubung ke WiFi. Periksa kembali kredensial Anda.");
    while (1) {
      // Menghentikan program jika gagal terhubung ke WiFi
      delay(1000);
    }
  }

  Serial.println("");
  Serial.println("Koneksi WiFi berhasil");
  Serial.println("Alamat IP: ");
  Serial.println(WiFi.localIP());

  // Memulai server web
  server.begin();
}

void loop() {
  WiFiClient client = server.available();

  if (client) {
    Serial.println("Klien baru terhubung");
    String currentLine = "";

    while (client.connected()) {
      if (client.available()) {
        char c = client.read();
        Serial.write(c);
        if (c == '\n') {
          if (currentLine.length() == 0) {
            client.println("HTTP/1.1 200 OK");
            client.println("Content-type:text/html");
            client.println("Connection: close");
            client.println();

            // Konten halaman web yang akan ditampilkan
            client.println("<!DOCTYPE html><html>");
            client.println("<head><title>ESP32 LED Control</title></head>");
            client.println("<body>");
            client.println("<h1>ESP32 LED Control</h1>");
            client.println("<p><a href=\"LED_ON\"><button>LED ON</button></a></p>");
            client.println("<p><a href=\"LED_OFF\"><button>LED OFF</button></a></p>");
            client.println("</body></html>");
            break;
          } else {
            currentLine = "";
          }
        } else if (c != '\r') {
          currentLine += c;
        }

        // Kontrol LED berdasarkan permintaan dari halaman web
        if (currentLine.endsWith("LED_ON")) {
          digitalWrite(ledPin, HIGH);
        } else if (currentLine.endsWith("LED_OFF")) {
          digitalWrite(ledPin, LOW);
        }
      }
    }

    // Menunggu koneksi ditutup sebelum melepaskan sumber daya
    delay(10);
    client.stop();
    Serial.println("Klien terputus");
  }
}