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RANCANG BANGUN DAN SIMULASI PROTEUS SISTEM LAMPU OTOMATIS MENGGUNAKAN SENSOR LDR DAN RANGKAIAN KOMPARATOR LM324 Erika; Sya’diah, Halimatus; Desta Azzahra, Lathifah; Amri, Fauzan; Kurnianingtyas, Rahajeng
JURNAL REKAYASA ENERGI Vol. 4 No. 1 (2025): Jurnal Rekayasa Energi
Publisher : Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31884/jre.v4i1.77

Abstract

This project was developed to create an automatic system that can control a lamp based on the surrounding light conditions. The system uses an LDR (Light Dependent Resistor) sensor to detect light intensity and an LM324 IC as a comparator to determine when the lamp should turn on or off. When the ambient light decreases (such as during nighttime), the resistance of the LDR changes and sends a signal to the LM324 circuit. The main purpose of this system is to enable the lamp to automatically turn on when it gets dark and turn off when it becomes bright again, without the need for manual switching. In this way, the system helps to save electrical energy and improve lighting efficiency, especially in areas that are often forgotten to be turned off, such as porches or garden lights. Based on the testing results, the system functions properly and responds quickly to changes in light. The circuit is also stable and easy to build, as it uses simple and commonly available components. Overall, this system is suitable for various lighting automation purposes in residential areas as well as public spaces.
Construction of A Thermoelectric Coolbox System With Ice Pack Modification for Mango Storage Based on The Internet of Things Amri, Fauzan; Rahma Putra, Ardiansyah; Abdul Gofur, Moh.; Bonardo, Doli
Logic : Jurnal Rancang Bangun dan Teknologi Vol. 25 No. 1 (2025): March
Publisher : Unit Publikasi Ilmiah, P3M, Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31940/logic.v25i1.19-26

Abstract

This study aims to design a thermoelectric system for a coolbox utilizing additional ice pack components for mango storage by leveraging a TEC1-12706 Peltier element based on IoT technology. Thermoelectric is an energy conversion technology that directly converts thermal energy into electrical energy and vice versa through thermoelectric materials. The system operates based on the Peltier effect, which generates a temperature difference between two sides of the material when an electric current is applied. Based on the test results, the developed thermoelectric system achieved a cabin temperature of up to 12.6 ºC within 60 minutes, according to the ideal storage temperature requirements for mangoes (12–15 ºC). The addition of an ice pack plays a significant role in accelerating the temperature reduction inside the cabin. The cold sink and heatsink components function effectively in absorbing and releasing heat to the environment. This system achieved a COP of 0.60 with an efficiency of 60%. The thermoelectric system has also been successfully integrated with IoT technology through the Blynk application, enabling users to monitor temperature and humidity in real-time via an internet-connected smartphone, thereby facilitating the control of mango storage conditions.
Inovasi Alat Pakan Otomatis Tenaga Surya untuk Produktivitas Petambak Udang di Desa Pangkalan, Indramayu Amri, Fauzan; Aziz, Rofan; Khoerun, Bobi; Budiman Pepbriari, Rizky; Nugraha, Faizal; Mutaqin, Dikril; Silviani, Cindy
Jurnal Pengabdian kepada Masyarakat Nusantara Vol. 5 No. 4 (2024): Jurnal Pengabdian kepada Masyarakat Nusantara (JPkMN) Edisi September - Desembe
Publisher : Lembaga Dongan Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55338/jpkmn.v5i4.4818

Abstract

Program pengabdian masyarakat yang dilakukan oleh Politeknik Negeri Indramayu (Polindra) berkolaborasi dengan eFishery bertujuan untuk meningkatkan produktivitas petambak udang melalui inovasi teknologi ramah lingkungan. Salah satu kegiatan utamanya adalah penyerahan alat pemberi pakan udang otomatis berbasis tenaga surya kepada Badan Usaha Milik Desa (BUMDes) di Desa Pangkalan, Kecamatan Losarang, Kabupaten Indramayu. Alat ini dirancang untuk memberikan pakan secara otomatis sesuai jadwal, sekaligus mengoptimalkan pemberian pakan pada udang. Alat ini juga mengintegrasikan sistem tenaga surya sebagai solusi atas keterbatasan listrik PLN di lokasi tambak. Penerapan alat pakan otomatis ini diharapkan mampu meningkatkan produktivitas petambak, efisiensi kerja petambak, kualitas panen, dan pendapatan masyarakat.