├── .gitignore ├── Assets ├── SampleScene.unity ├── SampleScene.unity.meta ├── udptest.cs └── udptest.cs.meta ├── LICENSE.txt ├── Packages └── manifest.json ├── ProjectSettings ├── AudioManager.asset ├── ClusterInputManager.asset ├── DynamicsManager.asset ├── EditorBuildSettings.asset ├── EditorSettings.asset ├── GraphicsSettings.asset ├── InputManager.asset ├── NavMeshAreas.asset ├── Physics2DSettings.asset ├── PresetManager.asset ├── ProjectSettings.asset ├── ProjectVersion.txt ├── QualitySettings.asset ├── TagManager.asset ├── TimeManager.asset ├── UnityConnectSettings.asset ├── VFXManager.asset └── XRSettings.asset ├── README.md └── udptest.ino /.gitignore: -------------------------------------------------------------------------------- 1 | # This .gitignore file should be placed at the root of your Unity project directory 2 | # 3 | # Get latest from https://github.com/github/gitignore/blob/master/Unity.gitignore 4 | # 5 | /[Ll]ibrary/ 6 | /[Tt]emp/ 7 | /[Oo]bj/ 8 | /[Bb]uild/ 9 | /[Bb]uilds/ 10 | /[Ll]ogs/ 11 | /[Uu]ser[Ss]ettings/ 12 | 13 | # MemoryCaptures can get excessive in size. 14 | # They also could contain extremely sensitive data 15 | /[Mm]emoryCaptures/ 16 | 17 | # Asset meta data should only be ignored when the corresponding asset is also ignored 18 | !/[Aa]ssets/**/*.meta 19 | 20 | # Uncomment this line if you wish to ignore the asset store tools plugin 21 | # /[Aa]ssets/AssetStoreTools* 22 | 23 | # Autogenerated Jetbrains Rider plugin 24 | /[Aa]ssets/Plugins/Editor/JetBrains* 25 | 26 | # Visual Studio cache directory 27 | .vs/ 28 | 29 | # Gradle cache directory 30 | .gradle/ 31 | 32 | # Autogenerated VS/MD/Consulo solution and project files 33 | ExportedObj/ 34 | .consulo/ 35 | *.csproj 36 | *.unityproj 37 | *.sln 38 | *.suo 39 | *.tmp 40 | *.user 41 | *.userprefs 42 | *.pidb 43 | *.booproj 44 | *.svd 45 | *.pdb 46 | *.mdb 47 | *.opendb 48 | *.VC.db 49 | 50 | # Unity3D generated meta files 51 | *.pidb.meta 52 | *.pdb.meta 53 | *.mdb.meta 54 | 55 | 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-------------------------------------------------------------------------------- 1 | fileFormatVersion: 2 2 | guid: 9fc0d4010bbf28b4594072e72b8655ab 3 | DefaultImporter: 4 | externalObjects: {} 5 | userData: 6 | assetBundleName: 7 | assetBundleVariant: 8 | -------------------------------------------------------------------------------- /Assets/udptest.cs: -------------------------------------------------------------------------------- 1 | using UnityEngine; 2 | using System.Collections; 3 | using System.Collections.Generic; 4 | using System.Net; 5 | using System.Net.Sockets; 6 | using System.Text; 7 | using System.Threading; 8 | using System; 9 | using UnityEngine.Experimental.GlobalIllumination; 10 | 11 | //Unity でUDP通信受信 12 | //https://qiita.com/nenjiru/items/8fa8dfb27f55c0205651 13 | 14 | //パケット構造作ってる 15 | //https://younaship.com/2018/12/31/unity%E4%B8%8A%E3%81%A7websocket%E3%82%92%E7%94%A8%E3%81%84%E3%81%9F%E9%80%9A%E4%BF%A1%E6%A9%9F%E8%83%BD%E3%83%9E%E3%83%AB%E3%83%81%E3%83%97%E3%83%AC%E3%82%A4%E3%82%92%E5%AE%9F%E8%A3%85%E3%81%99/ 16 | 17 | //タイムアウトについて 18 | //https://teratail.com/questions/56000 19 | 20 | public class udptest : MonoBehaviour 21 | { 22 | int LOCAL_PORT = 22222; 23 | static UdpClient udp; 24 | static UdpClient udp_send; 25 | 26 | Thread thread; 27 | 28 | const int datanum = 9; 29 | static float[] f_buf = new float[datanum]; 30 | static Int32[] i_buf = new Int32[datanum]; 31 | 32 | 33 | string host = "192.168.0.62"; 34 | int port = 22224; 35 | 36 | // Start is called before the first frame update 37 | void Start() 38 | { 39 | udp = new UdpClient(LOCAL_PORT); 40 | udp_send = new UdpClient(); 41 | udp.Client.ReceiveTimeout = 0; //0にしてみたら通信できたけど、タイムアウト０＝ 42 | udp_send.Connect(host, port); 43 | thread = new Thread(new ThreadStart(ThreadMethod)); 44 | thread.Start(); 45 | } 46 | 47 | // Update is called once per frame 48 | void Update() 49 | { 50 | //アクセス例 51 | //Debug.Log(i_buf[1].ToString()); 52 | //Debug.Log(f_buf[2].ToString()); 53 | } 54 | void OnApplicationQuit() 55 | { 56 | udp_send.Close(); 57 | thread.Abort(); 58 | } 59 | 60 | private static void ThreadMethod() 61 | { 62 | String test; 63 | 64 | while (true) 65 | { 66 | IPEndPoint remoteEP = null; 67 | byte[] data = udp.Receive(ref remoteEP); 68 | //Debug.Log(data.Length.ToString()); 69 | 70 | //パケットサイズが正しければ処理開始 71 | if (data.Length == datanum * 4 ) // float または Int32 のサイズとして 4 72 | { 73 | test = ""; 74 | 75 | for (int a = 0; a と、setup() 内の M5.begin() を有効にしてください。） 34 | 35 | 2. Arduino IDE 上で、コード内最初のWiFIアクセスポイントの SSID, pass、そして送り先PCのIPアドレス　の３か所を各環境に合わせ入力し、書き込んでください。wifi接続されます。 36 | 37 | 　（SSID はアクセスポイントの名前、送り先IPアドレスは、win 10 ならスタート→ 入力「cmd」 → 「Enter」 → 入力「ipconfig /all」 → 使ってるネットワークのアドレスを調べる（イーサネットやワイヤレスネットワークの IP v4 アドレス。192.168.0.10 等）　virtualネットワーク等色々ありますので間違えないよう）　） 38 | 39 | 3. Unity でこのリポジトリをダウンロードし開きます。SampleScene シーンを開きます。 40 | 　udptest.cs 最初の方の相手IPアドレス(ESP32)を入力します。（ESP32が正しくWiFI につながれば、Arduino IDE シリアルモニタ上で最初に表示されるはずです。見逃したらリセットボタンでも押してみてください。） 41 | 42 | 　（UDPcontrolオブジェクトに、udptest.cs スクリプトをアタッチしております。） 43 | 44 | 4. 再生ボタンを押すと、画面に変化はありませんが、待ち受け状態になります。コンソールに受信したデータが表示されます。（されない場合はIPアドレスやポート番号等チェック） 45 | 46 | 5. 画面内の「send」ボタンを押すと、ESP32 へデータを送信します。 47 | 48 | 6. これで送受信できました！　float または Int32 で送受信するサンプルとなりますので、適宜コードをご変更ください。 49 | 50 | 　(つながらない場合は、Arduino, Unity が同じwifi ネットワークにあること、ポートを揃えてるかどうか等、ご確認下さい。) 51 | 52 | （ＰＣ再インストールして試したところ、Windows 10 のネットワークプロファイルが「パブリック」だとPCでUDP受信できず、「プライベート」にしたら受信できました。受信できないときは、ファイヤーウォール設定のポートの設定もご確認下さい。） 53 | 54 | 55 | # 参考にしたURL。 56 | 57 | ほぼこちらの方々のコードを参考にさせてもらっています。　ありがとうございます。 58 | 59 | 参考１ Qiita UnityでUDPを受信してみる 60 | 61 | https://qiita.com/Tsukkey/items/247285c703fbbc6c6cd2 62 | 63 | 参考２ Qiita ESP32でUDP通信やってみた（ESP32インストール手順解説あり） 64 | 65 | https://qiita.com/nenjiru/items/8fa8dfb27f55c0205651 66 | 67 | 参考３　 M5Stack同士でWiFi, UDPによる双方向リアルタイム同時通信する実験 68 | 69 | https://www.mgo-tec.com/blog-entry-udp-wifi-m5stack.html/3#title09 70 | 71 | # その他 72 | 73 | 当環境　Unity 2019.1.10f1　　　Arduino IDE 1.8.9 74 | 75 | MIT License 76 | 77 | @devemin https://twitter.com/devemin 78 | 79 | もし良かったらスターやコメントお願い致します♪ 80 | 81 | -------------------------------------------------------------------------------- /udptest.ino: -------------------------------------------------------------------------------- 1 | //↓M5StickC ならこれを有効にし、Setup() でM5.begin() を行う 2 | //#include 3 | #include 4 | #include 5 | 6 | 7 | //ESP32 x Unity x UDP 8 | //WiFi UDPにて送受信するサンプルです。 9 | 10 | //参考： 11 | //ESP32でUDP通信やってみた（ESP32インストール手順解説あり） 12 | //https://qiita.com/Tsukkey/items/247285c703fbbc6c6cd2 13 | //M5Stack同士でWiFi, UDPによる双方向リアルタイム同時通信する実験 14 | //https://www.mgo-tec.com/blog-entry-udp-wifi-m5stack.html/3#title09 15 | //２バイト以上のデータタイプはビットシフトしてバイト分割して送る、float は共用体を利用して送る 16 | //https://hawksnowlog.blogspot.com/2016/11/sending-multibytes-with-serialwrite.html#float-4byte-%E3%81%AE%E6%83%85%E5%A0%B1%E3%82%92%E9%80%81%E4%BF%A1%E3%81%99%E3%82%8B%E6%96%B9%E6%B3%95 17 | 18 | const char* ssid = "apname"; 19 | const char* password = "appassword"; 20 | 21 | const char* client_address = "192.168.0.33"; //送り先 22 | const int client_port = 22222; //送り先 23 | const int server_port = 22224; //このESP32 のポート番号 24 | 25 | 26 | #define RECVDATANUM 9 27 | #define SENDDATANUM 9 28 | 29 | WiFiUDP udp; 30 | 31 | //データ送受信のfloat のやり取りの為に、共用体を用いる。 32 | //共用体は、下記宣言で4byte のバイナリデータなのに、.ival や .fval 等とアクセスすることで中身を int や float に読み替えられる機能 33 | typedef union { 34 | int32_t ival; 35 | float fval; 36 | byte binary[4]; 37 | } uf; 38 | 39 | 40 | uf r_ufdata[RECVDATANUM]; 41 | uf s_ufdata[SENDDATANUM]; 42 | 43 | 44 | 45 | 46 | void setup() { 47 | Serial.begin(115200); 48 | 49 | //M5StickC の時は実行 50 | //M5.begin(); 51 | 52 | //WiFi 初期化 53 | Serial.println("[ESP32] Connecting to WiFi network: " + String(ssid)); 54 | WiFi.disconnect(true, true); 55 | delay(500); 56 | WiFi.begin(ssid, password); 57 | while( WiFi.status() != WL_CONNECTED) { 58 | delay(500); 59 | } 60 | Serial.println(""); 61 | Serial.println("WiFi connected"); 62 | Serial.println("IP address: "); 63 | Serial.println(WiFi.localIP()); 64 | 65 | 66 | //UDP 開始 67 | udp.begin(server_port); 68 | delay(500); 69 | 70 | } 71 | 72 | 73 | //受信 74 | //パケットが来ていれば、RECVDATANUM 分だけr_ufdata配列に保存する 75 | void receiveUDP(){ 76 | int packetSize = udp.parsePacket(); 77 | byte tmpbuf[128]; 78 | 79 | //今回はUnity にここに来る処理は入れてないが、RECVDATANUM 分のfloatが来た場合の処理　の想定 80 | if(packetSize == RECVDATANUM){ 81 | //Serial.println("recv"); 82 | for (int a=0; a