The openai-realtime-embedded-sdk is an SDK specifically designed for microcontrollers, allowing developers to implement real-time API functionalities on devices like the ESP32. The development and testing of this SDK mainly occur on the ESP32S3 and Linux platforms, enabling developers to use it directly on Linux without physical hardware. The SDK supports device configuration through setting Wi-Fi SSID, password, and OpenAI API key, and allows building and running programs. Its significance lies in enabling microcontrollers to interact with powerful APIs, thereby expanding their application scope, especially in scenarios requiring real-time data processing and decision-making.