Embedded computing systems still remain one of the underlying priorities in worldwide research communities. This paper presents an agent-based approach for embedded real-time systems design based on a reusable framework. The essence of our work lies on smart environment domain. Jade - a Java-based middleware is selected as a platform, facilitating the development of multi-agent embedded systems framework. Generic system architecture, framework prototype implementation and, subsequently, smart refrigerator control application are demonstrated, reasoning that the proposed method is effective in dealing with challenges raised by issues in contemporary embedded system development.