Smart Water Level Indicator with Dry Protection Based on Ultrasonic Sensor Water indicator, Dry protection, Ultrasonic. AL-Rafidain Journal of Computer Sciences and Mathematics, [S. l.], v. 18, n. 2, p. 168–174, 2024. DOI: 10.33899/csmj.2024.153786.1147. Disponível em: https://csmj.uomosul.edu.iq/index.php/csmj/article/view/49539. Acesso em: 25 jun. 2026.