I designed a smart hat for the blind, so that they can rely on the sound to feel the intensity of the sun when they go out . I made the tones of C, D, E, F, G, A, and B correspond to different levels of light, and the duration of the sound varies with the intensity of the light. When the light intensity reaches a certain level, play the sound of the victory clearance written by the code. Although blind people can't feel the sunshine like ordinary people, I hope my works can bring them the feelings and feelings brought by the auditory senses.