Prototype Sistem Monitoring Banjir Berbasis Thingspeak Menggunakan Sensor HC-SR04 Dan Node MCU Esp-8266. INSANtek, [S. l.], v. 5, n. 1, p. 01–06, 2024. DOI: 10.31294/insantek.v5i1.3301. Disponível em: https://jurnal.bsi.ac.id/https:/jurnal.bsi.ac.id/index.php/insantek/article/view/3301. Acesso em: 25 may. 2026.