Xiaozhi ESP32 Server Java

What is Xiaozhi ESP32 Server Java?

Xiaozhi ESP32 Server Java is a Java enterprise-grade server for the Xiaozhi ESP32 hardware project. It includes a full front‑end and back‑end management platform, providing powerful backend support and an intuitive console for smart devices.

How to use Xiaozhi ESP32 Server Java?

Clone the repository, run the model download script (./scripts/download_models.sh), then start the server with bin/all.sh start. Deployment options include source code (Linux/Windows) and Docker. After startup, the server outputs OTA and WebSocket connection addresses; compile and flash the ESP32 firmware following the firmware build documentation to connect your device.

Key features of Xiaozhi ESP32 Server Java

• Multi‑module, dual‑process architecture (admin + dialogue)
• Support for OpenAI, Zhipu, iFlytek, Ollama, Dify, Coze
• Full voice pipeline: local & cloud STT/TTS, voice cloning
• WebSocket and MQTT real‑time communication
• IoT smart home voice control and multi‑device coordination
• RAG knowledge base with document upload and long‑term memory
• One‑click deployment with scripts and Docker Compose
• Multi‑dimensional monitoring (token, latency, device activity)

Use cases of Xiaozhi ESP32 Server Java

• Users who already own ESP32 hardware and need a feature‑rich management platform
• Developers requiring enterprise‑level stability and scalability
• Individuals wanting to quickly set up and use their ESP32 device
• Scenarios that need to handle a large number of concurrent device connections

FAQ from Xiaozhi ESP32 Server Java

What dependencies are required to run the server?

The server requires MySQL 8.0, Redis 7, and the JVM. On first deployment you must download models and native libraries via the provided script.

Is the complete project open‑source?

The public repository includes most features; some advanced capabilities (indicated in a feature comparison chart) are part of a commercial version and not open‑sourced.

How do I connect my ESP32 device to the server?

After the server is running, you need to compile and flash the ESP32 firmware according to the firmware build documentation. The server outputs the necessary OTA and WebSocket addresses.

What is the performance of the server under heavy load?

In a benchmark test with 100 devices and 100 concurrent connections on an 8‑core 8GB server, the system achieved 100% WebSocket connection success, an average user‑perceived latency of 1.837s, and peak CPU usage of 80% (8 cores).

Can I run the server without a cloud STT/TTS service?

Yes, the server supports local STT (Vosk, FunASR) and local TTS (sherpa‑onnx), allowing offline operation.