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All Journal Majalah Ilmiah Teknologi Elektro
Ve Mas Danuarta
Universitas Udayana
Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy

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Rancang Bangun Purwarupa Alat Pengering Rumput Laut Berbasis IOT Dengan Sistem Energi Hybrid PLTS Dan PLN Untuk Petani Rumput Laut Di Pantai Geger, Nusa Dua, Bali Ve Mas Danuarta; Imam Anshari; I Putu Bagus Putra Pratama; Cokorde Gede Indra Partha; Lie Jasa
Majalah Ilmiah Teknologi Elektro Vol 25 No 1 (2026): (Januari - Juni) Majalah Ilmiah Teknologi Elektro
Publisher : Study Program of Magister Electrical Engineering

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/MITE.2026.v25.01.p10

Abstract

Seaweed (Eucheuma cottonii) is one of Indonesia’s leading aquaculture commodities with high economic value. However, the post-harvest drying process still relies on conventional sun-drying methods, making production highly dependent on weather conditions and requiring a long drying duration. This study aims to design and develop a prototype seaweed dryer based on the Internet of Things (IoT) integrated with a hybrid energy system combining Solar Power Plants (PV) and the utility grid (PLN). The system utilizes an ESP32 microcontroller, DHT22 sensor, soil moisture sensor, and Automatic Transfer Switch (ATS) to ensure continuous operation. Monitoring data are displayed through Blynk, LCD, and Google Spreadsheet in real time. The prototype has a maximum capacity of 250 grams of wet seaweed. Experimental results show that the drying chamber temperature can be maintained within the range of 58–59°C while reducing air humidity from 45% to 30%. The drying process successfully reduced the seaweed weight from 250 grams to approximately 41 grams within 4 hours until reaching the target moisture content of 35%. The hybrid energy system employing a 120 Wp solar panel and a 100 Ah battery provided stable power supply during operation. The proposed system offers an effective solution to improve drying efficiency, maintain product quality, and reduce dependence on weather conditions for coastal seaweed farmers.
Co-Authors Cokorde Gede Indra Partha I Putu Bagus Putra Pratama Imam Anshari Lie Jasa