Esp32_usb_dongle_controller_wifi

#include <WiFi.h>

const char* ssid = "YOUR SSID";
const char* password = "Your Password";
WiFiServer server(1234);

struct ButtonAction {
  const char* name;
  int pin;
};

ButtonAction buttonMap[] = {
  { "BTN_SOUTH", 19 },   # replace pin no. accdg to your esp32. In this case I use, 19,18,23 and 22
  { "BTN_EAST", 18 },
  { "BTN_NORTH", 23 },
  { "BTN_WEST", 22 },
};

const int flashDuration = 200;

void setup() {
  Serial.begin(115200);
  Serial.println(WiFi.localIP());  // ← this prints the IP address to Serial Monitor

  for (auto& btn : buttonMap) {
    pinMode(btn.pin, OUTPUT);
    digitalWrite(btn.pin, LOW);
  }

  WiFi.begin(ssid, password);
  Serial.print("Connecting to Wi-Fi");
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println("\n✅ Wi-Fi connected");
  Serial.println(WiFi.localIP());
  server.begin();
}

void flashLED(int pin) {
  digitalWrite(pin, HIGH);
  delay(flashDuration);
  digitalWrite(pin, LOW);
}

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

  if (client) {
    while (client.connected()) {
      if (client.available()) {
        String input = client.readStringUntil('\n');
        input.trim();

        for (auto& btn : buttonMap) {
          if (input == "BTN:" + String(btn.name)) {
            flashLED(btn.pin);
            Serial.println("Triggered: " + input);
          }
        }
      }
    }
    client.stop();  // Close client cleanly after disconnect
  }
}