Design a System for Calculating the Number of People Passing Using the Arduino Uno Based PIR (Passive Infrared Receiver) Sensor. Jurnal Pendidikan Fisika, [S. l.], v. 7, n. 3, p. 271–276, 2019. DOI: 10.26618/jpf.v7i3.2098. Disponível em: https://journal.unismuh.ac.id/index.php/jpf/article/view/2098. Acesso em: 26 aug. 2025.