Natzir, Sadam Muhammad, and Edwin Ariesto Umbu Malahina. “Prototype Of An Accident Notification Device Using Node MCU Microcontroller and Crash Sensor”. Jurnal Teknik Informatika dan Sistem Informasi 10, no. 1 (May 7, 2024): 49 –. Accessed November 20, 2024. http://114.7.153.31/index.php/jutisi/article/view/6961.