/challenges-projects/design-challenges/design-for-a-cause-2021/b/blog/posts/design-for-a-cause-2021-entry-bluetooth-smartphone-braille-keypad-for-the-visually-impairedProblem :Ubiquitous smartphone access has empowered almost every individual with access to information and services that make our lives not only make daily life easy But almost enables us to do and perform at much higher levels.However, The switch t.en-USTelligent Community 12