voice-assistant.io
Programmable voice interface ESP32-S3, Gemini, Function Call
What it does
Voice-Assistant.io is a DIY voice terminal for your own hardware. We provide the ESP32-S3 firmware and open PCB designs to bridge your physical devices with Gemini Live API. - Hardware First: ESP32-S3 ready. We provide Gerber files & 2-click flashing. - No Limits: Native n8n & MQTT integration. Trigger any workflow with custom Function Sets. - Optimized Edge-to-AI: Custom proxy compresses audio, giving you instant Gemini Live API responses on DIY gear.
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Google Gemini 3.1 Flash TTSApr 2026 · blog.google · ▲166Text-to-speech API with natural language voice direction
Gemini 3.5 Live TranslateJun 2026 · blog.google · ▲253Latest audio model for live speech-to-speech translation
- IOI open-sourced my AI toy company that runs on ESP32 and OpenAI realtime2025 · github.com · ▲177
Hi HN! Last year the project I launched here got a lot of good feedback on creating speech to speech AI on the ESP32. Recently I revamped the whole stack, iterated on that feedback and made our project fully open-source—all of the client, hardware, firmware code. This Github repo turns an ESP32-S3 into a realtime AI speech companion using the OpenAI Realtime API, Arduino WebSockets, Deno Edge Functions, and a full-stack web interface. You can talk to your own custom AI character, and it responds instantly. I couldn't find a resource that helped set up a reliable, secure websocket (WSS) AI…
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