Sign Language Translator Based on Raspberry Pi Camera Using The Haar Cascade Classifier Method - Aji, Gempur Bayu; Yulianto, Fazmah Arif; Rakhmatsyah, Andrian (Building of Informatics, Technology and Science (BITS); Vol 4 No 4 (2023): March 2023; 1747−1753 ; 2685-3310 ; 2684-8910 ; 10.47065/bits.v4i4, 2023)