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All Journal Journal of Electrical Engineering and Informatics
Muis Mappalotteng, Abdul
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Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Engineering

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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.
DESIGN AND DEVELOPMENT OF A WEB-BASED MENU ORDERING SYSTEM AT KOPITAWA CAFE USING QR CODE Erwin Sudirman; Zulhajji, Zulhajji; Muis Mappalotteng, Abdul
Journal of Electrical Engineering and Informatics Vol. 2 No. 2 (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.v2i2.6805

Abstract

This study aims to determine the design outcomes and testing results of the menu ordering system at Kopitawa Café.The research employed an R&D (Research and Development) approach and utilized the waterfall development model, incorporating data collection techniques such as observation, interviews, and questionnaires. Based on the study's findings, a web-based menu ordering system for Kopitawa Cafe was successfully designed and developed using QR codes. The system was tested following the ISO/IEC 25010 standard, which includes eight testing aspects. The results indicate that the designed system is feasible and ready for use. This study aims to design and develop a web-based menu ordering system at Kopitawa Cafe using QR Code technology. The research method follows Research and Development (R&D) with the Waterfall development model, including requirements analysis, system design, implementation, verification, and maintenance. The system was tested based on ISO/IEC 25010 standards, covering eight key aspects: functionality suitability, usability, reliability, performance efficiency, maintainability, compatibility, portability, and security. The results indicate that the developed system achieved 100% success in functionality testing, with a usability score of 91.03%, categorized as "excellent". Performance testing using GTMetrix resulted in a 57% (Grade C) score, with a 5.2-second loading time. Portability testing confirmed that the system operates smoothly on various devices and operating systems. Security testing with Quttera verified that the system meets basic security standards. However, this study has some limitations, including the need for further optimization of system performance, dependency on Firebase, which may impact scalability, and security aspects that require additional penetration testing. Future research should focus on improving system speed, enhancing security features, and exploring alternative database solutions.
Co-Authors Dewi, Sarah Erwin Sudirman Massikki, Massikki Sidik Sidin, Udin Tjandi, Yunus Zulhajji, Zulhajji