Fitra, Faisal Ari. 2022. “Design of A Tool to Counter Objects With A Pear Sensor As A Fan and Light Controller Based on An Rtc Based on An ATmega 8535 Microcontroller”. International Journal of Basic and Applied Science 11 (1):10-18. https://ijobas.pelnus.ac.id/index.php/ijobas/article/view/76.