GATEA, H. A. A. Arduino Based Control and Measuring ECG and PPG. Journal of Discoveries in Applied and Natural Science, [S. l.], v. 3, n. 5, p. 10–23, 2025. Disponível em: https://journals.proindex.uz/index.php/JDANS/article/view/2473. Acesso em: 2 apr. 2026.