willow

Why we included this project

Willow is a voice assistant that runs on the inexpensive ESP32-S3-BOX from Espressif, so you can build a complete assistant for about fifty dollars in parts. It handles wake word detection, voice activity detection, far-field audio, and on-device command recognition, and it can send speech to a self-hosted inference server for open-ended transcription and other language tasks. The firmware integrates with Home Assistant and openHAB, and because the code is open, you can build and flash it yourself or run it on a network with no internet. If you want an Echo or Google Home experience without sending your audio to a cloud, this is a self-contained starting point that you can actually read and modify.