As a synchronous development project for software and hardware, we adopt the pattern of agile development, thoroughly understand the function of all the modules of hardware products at the early stage through frequent communication, determine the simplest and visual presenting mode, participate in test together with software and hardware engineers, optimize interactive design plan timely according to the feedback, use lightweight visual design, and ensure the iterative update of fast reading of the program. Identify the clear core function point, and promote the usability and operating experience of products by UI design.