AUTOMATIC RAILWAY GATE CONTROLLING USING IR SENSORS AND MICROCONTROLLER. International Journal of Multidisciplinary Engineering In Current Research, [S. l.], v. 8, n. 3, p. 20–25, 2023. Disponível em: https://ijmec.com/index.php/multidisciplinary/article/view/247. Acesso em: 24 jun. 2025.