Development of a Smart Charity Box Robot Based on Microcontroller. International Journal of Advanced Technology and Social Sciences (IJATSS), [S. l.], v. 2, n. 4, p. 525–534, 2024. DOI: 10.59890/kvvetx19. Disponível em: https://penerbitjurnalinternasional.com/index.php/ijatss/article/view/277.. Acesso em: 12 feb. 2026.