V2_micropython/websocket_server/README.md

WebSocket Audio Server

This is a FastAPI server that receives audio from an ESP32 via WebSocket, saves it, processes it (converts 32-bit to 16-bit), and sends it back for playback.

Installation

1. Install dependencies:

   pip install -r requirements.txt
   

Usage

1. Start the server:

   python server.py
   

   Or:

   uvicorn server:app --host 0.0.0.0 --port 8000
   

2. Update the IP address in main.py on your ESP32 to match your computer's IP address. Look for SERVER_IP variable.

Features

• Receives raw audio stream from ESP32.
• Saves raw audio to received_audio.raw.
• Converts 32-bit audio (from ICS-43434) to 16-bit audio (for MAX98357A).
• Streams processed audio back to ESP32 for playback.