Articles Vol. 4, No. 1 (2026)
Muhammad Wali, Taufiq Iqbal, Abdus Salam, Syafrinal Syafrinal
STMIK Indonesia Banda Aceh
10.58477/dj.v4i1.386 Published: 2026-01-20
Abstract

Floods have repeatedly threatened the people of Aceh Province. Thousands of families lost their property and lives because the early warning information was delayed. This research designs a flood early warning system prototype based on IoT using renewable energy, which can operate on its own without PLN electricity. The system uses three IP68 float switch sensors to detect water levels at thresholds of 0.5m (normal), 1.0m (alert), and 1.5m (danger) combined with a 2-in-1 audio-visual alarm (strobe and siren) with a coverage distance of 100-150 meters. The energy design uses a solar panel of 50-100W with 12V DC voltage and has a minimum backup for 48 hours without sunlight. Hardware design, sensor accuracy testing, validation of the energy system, and testing the effectiveness of alarms are the research methods in this study which is conducted in Banda Aceh City. The results indicate that this system can run independently at low power consumption because float switch sensors are more effective than ultrasonic sensors under conditions where the water is turbid and full of debris as found in rivers in Aceh Province. This prototype is low-cost (less than Rp 2 million), requires minimal maintenance, and has high reliability; therefore, it can be adopted by communities that do not have many resources. This research provides a technical blueprint for developing an early warning system that fits geographically and climatically with Aceh Province which may be replicated in other flood-prone districts for disaster risk reduction programs.

Keywords:
Flood Early Warning IoT Solar Power Float Switch Disaster Risk Reduction
Cover D Journal Volume 4 Nomor 1 2026 Januari
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Wali, M., Iqbal, T., Salam, A., & Syafrinal, S. (2026). Designing a Solar-Powered IoT-Based Flood Early Warning System Prototype with Audio-Visual Alarm for Aceh Region. Design Journal, 4(1), 18-40. https://doi.org/10.58477/dj.v4i1.386
Muhammad Wali

STMIK Indonesia Banda Aceh

Informatics Management Study Program, STMIK Indonesia Banda Aceh, Banda Aceh City, Aceh Province, Indonesia

Taufiq Iqbal

STMIK Indonesia Banda Aceh

Informatics Management Study Program, STMIK Indonesia Banda Aceh, Banda Aceh City, Aceh Province, Indonesia

Abdus Salam

STMIK Indonesia Banda Aceh

Informatics Management Study Program, STMIK Indonesia Banda Aceh, Banda Aceh City, Aceh Province, Indonesia

Syafrinal Syafrinal

STMIK Indonesia Banda Aceh

Computer System Study Program, STMIK Indonesia Banda Aceh, Banda Aceh City, Aceh Province, Indonesia

Issue Vol. 4 No. 1 (2026)
SectionArticles
DOI10.58477/dj.v4i1.386
Publication Date2026-01-20
Pages18-40
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