DEVELOPMENT OF A LOW-COST ELECTROCARDIOGRAPH (ECG) DEVICE BASED ON THE ARDUINO PLATFORM AND MONITORING OF CARDIAC ACTIVITY. Multidisciplinary Journal of Science and Technology, [S. l.], v. 6, n. 6, p. 396–399, 2026. Disponível em: https://mjstjournal.com/index.php/mjst/article/view/7713. Acesso em: 17 jun. 2026.