# 📡 SimpleUDP — Lightweight & Blueprint-Friendly UDP Plugin for Unreal Engine
SimpleUDP is a lightweight UDP communication plugin designed for Unreal Engine. It supports real-time message exchange and seamless Blueprint integration. Whether you're working with external simulators, sensor devices, or LAN-based communication, SimpleUDP enables fast and reliable UDP messaging with zero third-party dependencies.
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## ✨ Features
- 🟢 Blueprint-Ready — Fully operable through Blueprints (no C++ required)
- 🛰️ Broadcast Support — Native support for UDP broadcast (e.g., `255.255.255.255`, `192.168.x.255`)
- 🔁 Auto Socket Management — Automatic socket registration for receivers, reusable sender sockets
- ⚙️ Centralized Configuration — Manage all channels through Project Settings (DeveloperSettings)
- 🧵 Multithreaded Receiving — Non-blocking background thread for incoming messages
- 🧱 IP Whitelist/Blacklist Filtering — Accept/reject incoming packets based on IP or CIDR rules
- 🧩 Modular & Lightweight — Fully self-contained, no third-party dependencies
- 🌐 Cross-Platform — Works on Windows, macOS, and Linux (Android/iOS in future updates)
- 🌍 IPv4 Only — Currently supports IPv4 networks only (IPv6 planned)
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## 📦 Typical Use Cases
- Real-time sensor or telemetry data ingestion
- Communication with third-party hardware or simulators
- Local network broadcasting across multiple machines
- Bridging Unreal with external tools (Python, C++, C#, etc.)
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## 📘 Documentation
Usage instructions, Blueprint examples, and technical notes are available in:
SimpleUDP/Docs/README.md
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## 🧰 Recommended Companion Plugin
Check out our SimpleByteConverter plugin — it allows conversion between native types/structs and `TArray<uint8>`, making it a perfect companion for SimpleUDP when dealing with binary serialization and network transmission.
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## 📬 Contact
For technical support, custom features, or business inquiries:
📧 mengzhishanghun@outlook.com
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## 🛡️ Notes
- ✅ Built entirely on Unreal’s native socket API — no third-party dependencies
- ❌ IPv6, multicast, and encryption are currently not supported
- 🔐 Receiver-side filtering supports exact IP or CIDR-based rules
- 🔄 Stateless design — ideal for low-latency or one-way messaging (e.g., sensor streams, command triggers)