 This study presents the development of a hydrogel-based strain sensor with excellent properties by utilizing emz nanoflakes, which results in a semi-interpenetrating network, semi-IPN, hydrogel that exhibits excellent strain response and flexibility. The device successfully converts sign language into Chinese characters using machine learning, providing novel insight and application directions for hydrogel families. This article was authored by Lian Jiajiao, Hao Siu, Ling Chenlu, and others.