// ESPNOW
  #include  <esp_now.h>
  #include  <WiFi.h>

  // Packet Data Structure
  struct PacketData {
      uint8_t X;  // Steering (left/right)
      uint8_t Y;  // Throttle (forward/backward)
      bool    B;  // Button
  };

  // Data Received From Remote
  PacketData data;

  // ESP-NOW callback
  void OnDataRecv(const esp_now_recv_info *info, const uint8_t *data, int len) {
    if (len == sizeof(PacketData)) {
      memcpy(&data, data, sizeof(PacketData));
    }
  }

  // Function To Start ESPNOW
  void espnow_begin() {

    // ESP-NOW setup
    WiFi.mode(WIFI_STA);
    if (esp_now_init() != ESP_OK) {
      Serial.println("ESP-NOW init failed");
      return;
    }

    delay(100);

    // Print MAC Address
    Serial.println(WiFi.macAddress());

    delay(2000);

    // When Receive Data Execute OnDataRecv Function
    esp_now_register_recv_cb(OnDataRecv);

  }