This is a low-footprint C-based SDK that includes support for all of the following features:
Supported Hardware
By default, the SDK supports ESP32-LyraT development boards.
The SDK is so structured that it should be easily possible to support other hardware configurations.
Getting Started
Instructions for building, flashing and using the firmware are available here: https://github.com/espressif/esp-avs-sd ... yrat_alexa
Hands-Free Mode/Wake-Word Engine
The SDK also supports hands-free mode of operation. The example lyrat_alexa_sr/ is provided that demonstrates the use in a hands-free mode (activity triggered based on saying ‘Alexa’ instead of pushing a button).
Phone Apps
The SDK release also includes a phone app for Android for performing (a) network configuration of the development board and (b) Authentication with Amazon. The source code for this app is also available here: https://github.com/espressif/esp-idf-pr ... rsions/avs. It can be easily modified to add your Alexa project’s ID and credentials. It can also be easily customized to the branding and look-and-feel of your products.