Your ESP32 Kit is Open.
Now What?

// Blink the built-in LED on pin 2
// Works on most ESP32 boards

#define LED_PIN 2   // change to 8 for ESP32-C6, 38 for some S3 boards

void setup() {
  pinMode(LED_PIN, OUTPUT);
}

void loop() {
  digitalWrite(LED_PIN, HIGH);  // LED on
  delay(500);                   // wait 0.5 second
  digitalWrite(LED_PIN, LOW);   // LED off
  delay(500);                   // wait 0.5 second
}

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

const char* ssid     = "YourWiFiName";      // <-- change this
const char* password = "YourWiFiPassword";  // <-- change this

#define LED_PIN 2   // change to 8 for C6, or 38/48 for some S3

WebServer server(80);
bool ledState = false;

void handleRoot() {
  String html = "<!DOCTYPE html><html><head>";
  html += "<meta name='viewport' content='width=device-width, initial-scale=1'>";
  html += "<style>body{font-family:sans-serif;text-align:center;padding:40px;}";
  html += "button{font-size:24px;padding:20px 40px;border-radius:12px;border:none;";
  html += "background:" + String(ledState ? "#f97316" : "#e5e7eb") + ";cursor:pointer;}</style></head>";
  html += "<body><h2>ESP32 LED Control</h2>";
  html += "<p>LED is: <strong>" + String(ledState ? "ON" : "OFF") + "</strong></p>";
  html += "<form action='/toggle' method='POST'>";
  html += "<button type='submit'>" + String(ledState ? "Turn OFF" : "Turn ON") + "</button>";
  html += "</form></body></html>";
  server.send(200, "text/html", html);
}

void handleToggle() {
  ledState = !ledState;
  digitalWrite(LED_PIN, ledState ? HIGH : LOW);
  server.sendHeader("Location", "/");
  server.send(303);
}

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

  WiFi.begin(ssid, password);
  Serial.print("Connecting to WiFi");
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println();
  Serial.print("Connected! Open this on your phone: http://");
  Serial.println(WiFi.localIP());

  server.on("/", handleRoot);
  server.on("/toggle", HTTP_POST, handleToggle);
  server.begin();
}

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