. The board features a dual-core ESP32 chip, 4MB SPI Flash, 2.4GHz Wi-Fi and Bluetooth connectivity, 30 GPIO pins, 8 differential microphone amplifier inputs, 4 time-division/2 AEC digital microphone services, a 0.2W x 2 amplifier, and an on-board precision clock source. It supports advanced features such as voice wake-up, voice merge, keyword spotting, multi-tone signal detection, and AI music maker. This development board also integrates an on-board USB-to-UART interface, allowing for fast and easy programming and development. The board also provides direct compatibility with Google’s voice assistant SDK. The ESP32-Korvo board comes with Espressif’s ESP-Skainet SDK, a comprehensive suite of tools for developing and deploying voice-enabled applications. ESP-Skainet enables developers to quickly build speech-enabled applications, from prototypes to production, for a range of scenarios, such as voice control, natural language processing, and facial recognition.