Building Realtime Speech AI Agents with ESP32: A Comprehensive Guide

Introduction to ElatoAI ElatoAI is an open-source framework for creating real-time voice-enabled AI agents using ESP32 microcontrollers, OpenAI’s Realtime API, and secure WebSocket communication. Designed for IoT developers and AI enthusiasts, this system enables uninterrupted global conversations exceeding 10 minutes through seamless hardware-cloud integration. This guide explores its architecture, implementation, and practical applications. Core Technical Components 1. Hardware Design The system centers on the ESP32-S3 microcontroller, featuring: Dual-mode WiFi/Bluetooth connectivity Opus audio codec support (24kbps high-quality streaming) PSRAM-free operation for AI speech processing PlatformIO-based firmware development Hardware schematic showcasing optimized PCB layout: 2. Three-Tier Architecture Frontend Interface (Next.js): AI character …