mahardhika, Pramudya, and Abdul Haris Kuspranoto. “DESIGN OF COUNTDOWN TIMER SIMULATION ON MEDICAL DEVICES BASED ON ARDUINO UNO AND WOKWI SIMULATION”. MEDIKA TRADA : Jurnal Teknik Elektromedik Polbitrada 5, no. 1 (June 30, 2024): 5–10. Accessed October 6, 2024. https://journal.polbitrada.ac.id/index.php/Jtemp/article/view/41.