A BLOOD OXYGEN SENSING ARDUINO-BASED VENTILATOR DEVICE FOR THE COVID PANDEMIC. International Journal of Multidisciplinary Engineering In Current Research, [S. l.], v. 8, n. 3, p. 14–19, 2023. Disponível em: https://ijmec.com/index.php/multidisciplinary/article/view/246. Acesso em: 5 feb. 2025.