Prototype Pintu Otomatis Di PT. Kaltim Nitrate Indonesia Menggunakan Sensor PIR Berbasis Arduino Uno di Masa Pandemi Covid-19 . j. of Power electr. and renew. Energy [Internet]. 2 Juni 2023 [dikutip 1 Juli 2026];1(1):7-11. Tersedia pada: https://jurnal.stitek.ac.id/index.php/JPER/article/view/52