Rancang Bangun Sistem Proteksi Otomatis Pemutus Aliran Listrik Berbasis IoT untuk Meningkatkan Keamanan RUmah Tangga Saat Bencana

Abstract

Keamanan rumah tangga saat bencana, seperti banjir, penting untuk melindungi peralatan listrik dan penghuni. Untuk itu, dirancang sistem proteksi otomatis pemutus aliran listrik berbasis Internet of Things (IoT). Sistem ini menggunakan sensor ultrasonik untuk mendeteksi ketinggian air, NodeMCU ESP8266 sebagai pengendali, dan modul relay untuk memutus listrik secara otomatis. Dilengkapi LED, buzzer, dan kontrol jarak jauh melalui Blynk, alat ini memberikan peringatan dini dan tindakan cepat. Pengujian menunjukkan sistem bekerja efektif saat ketinggian air melebihi 25 cm, dengan error tertinggi 26,8% pada pembacaan 27,80 cm. Sistem juga mampu mengirim notifikasi real-time ke smartphone. Secara keseluruhan, alat ini berhasil mendeteksi potensi bahaya dan memutus aliran listrik secara otomatis sesuai ambang batas, sehingga mengurangi risiko korsleting dan kebakaran saat bencana. Household safety during disasters such as floods is crucial to protect electrical equipment and occupants. To address this, an automatic power cut-off protection system based on the Internet of Things (IoT) was designed. The system utilizes an ultrasonic sensor to detect water levels, a NodeMCU ESP8266 microcontroller as the main controller, and a relay module to automatically disconnect the power supply. It is also equipped with LEDs, a buzzer for early warnings, and remote control via the Blynk platform, enabling quick response and early alerts. Testing shows the system functions effectively when water levels exceed 25 cm, with the highest error rate recorded at 26.8% for a reading of 27.80 cm. Additionally, the system is capable of sending real-time notifications to the user’s smartphone. Overall, the device successfully detects potential hazards and automatically disconnects the power according to the set threshold, thereby reducing the risk of short circuits and fires during disasters.