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Journal : Journal of Electrical Engineering and Informatics

DESIGN AND DEVELOPMENT OF AN ANDROID-BASED FERTILIZER ORDERING APPLICATION IN THE BANGKALA REGION Lutvi, Lutvi Karimah; Fathahillah, Fathahillah; Sidik Sidin, Udin
Journal of Electrical Engineering and Informatics Vol. 1 No. 2 (2024): JOURNAL of ELECTRICAL ENGINEERING and INFORMATICS
Publisher : Fakultas Teknik Universitas Negeri Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59562/jeeni.v1i2.1826

Abstract

In the Bangkala Region of Jeneponto Regency, farmers continue to depend on the conventional system for the fertilizer ordering process. This system results in inefficiencies and consumes the time of both sellers and buyers. We require an Android-based fertilizer ordering system that integrates directly with the server. The objective of this study is to develop an Android-based application for ordering fertilizer in the Bangkala region. This application was developed using the Research and Development (R&D) methodology and the waterfall development model. The results of this research have yielded a product in the form of an Android-based fertilizer ordering application, which will be utilized by farmers in the Bangkala Region, Jeneponto Regency. The system was tested using the ISO 25010 standard across four aspects: functional suitability, portability, usability, and performance efficiency. Functional suitability testing indicates that this application is "suitable" for use. Portability testing revealed that this fertilizer ordering application system runs well on several versions of Android. The usability testing results of the application have been categorized as "Very Good". Furthermore, performance efficiency testing shows that the CPU usage is at 4%, memory usage at 156.4 Mb, and the application network activity is at 80 Kb/s. Based on this data, the application has been well-received by users and can serve as a streamlined platform for ordering fertilizers for farmers.
DEVELOPMENT OF A SEAWEED DRYER USING ARDUINO UNO EQUIPPED WITH AN OLED LCD Dewi, Sarah; Sidik Sidin, Udin; Tjandi, Yunus; Massikki, Massikki; Muis Mappalotteng, Abdul
Journal of Electrical Engineering and Informatics Vol. 2 No. 1 (2024): JOURNAL of ELECTRICAL ENGINEERING and INFORMATICS
Publisher : Fakultas Teknik Universitas Negeri Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59562/jeeni.v2i1.4538

Abstract

This research aims to develop a seaweed dryer using an Arduino Uno equipped with an Oled LCD and to help farmers dry seaweed during the rainy season so that the seaweed is not damaged.This research method uses research and development (R&D) with a prototype development model. The data collection technique used was a questionnaire. The subjects in this research were seaweed farmers in Palajau Village, Arungkeke District, Jeneponto Regency. This research produces a seaweed dryer using an Arduino Uno equipped with an Oled LCD. The result of this research is a prototype seaweed dryer that uses a temperature sensor to detect temperature and humidity, a heater to dry seaweed, a fan to distribute heat in the drying room and an Oled LCD to display temperature and humidity. In terms of Functionality and Usability, the results of the functionality feasibility percentage were 100% and as many as 10 respondents or 100% assessed that the tool developed based on the Usability context was at 100% in the very good category. Based on the results of testing seaweed using this dryer, the drying time for seaweed is 4-5 hours until the seaweed is dry with a capacity of 4 Kg for drying seaweed once.
Development of Automatic Solar Panel Drive System Based on Arduino Uno Arjo, Rio; Tjandi, Yunus; Sidik Sidin, Udin
Journal of Electrical Engineering and Informatics Vol. 3 No. 1 (2025): Journal of Electrical Engineering and Informatics
Publisher : Fakultas Teknik Universitas Negeri Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59562/jeeni.v3i1.9665

Abstract

Low energy absorption efficiency in static solar panels remains a key challenge for renewable energy implementation in Indonesia. This study aims to develop and evaluate an automatic solar panel drive system based on Arduino Uno, integrating an RTC module and INA219 sensor to optimize panel orientation according to real-time sun position. The methodology involved designing a prototype system consisting of a 10 Wp solar panel, SG90 servo motor, RTC DS3231 module, and INA219 sensor, tested outdoors under light intensity ranging from 800 to 1000 lux. Experimental results showed that the automatic system increased average voltage output to 13.9 V and enhanced energy capture by 6-12% compared to static panels under clear sky conditions. Usability assessments using the System Usability Scale indicated that the system was rated as highly effective and practical at the prototype stage. The novelty of this research lies in the integration of RTC-based time scheduling with servo motor control, offering a stable, low-cost alternative to LDR-based systems for photovoltaic optimization in tropical environments. The developed system has potential for broader implementation to improve solar panel efficiency, though further studies are recommended to validate performance over longer durations and diverse weather conditions