Kharisma, Ivana Lucia, Kamdan, Asep Rizki Firdaus, Rizki Haddi Prayoga, Fakhriyal Riyandi Yasin, and Mutiara Annisa Tresna Ati. 2023. “Construction Of Railway Door Automation Prototypes Using Arduino, Servo Motors and Ultrasonic Sensors : Konstruksi Prototipe Otomatisasi Pintu Kereta Api Menggunakan Arduino, Motor Servo, Dan Sensor Ultrasonik”. Digital Zone: Jurnal Teknologi Informasi Dan Komunikasi 14 (1), 1-12. https://doi.org/10.31849/digitalzone.v14i1.13584.