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All Journal Jurnal Optimasi Sistem Industri Journal of Applied Electrical Engineering Journal of Applied Computer Science and Technology (JACOST) Jurnal Andalas: Rekayasa dan Penerapan Teknologi
Micko Tomas
Universitas Andalas
Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Engineering Health Professions Industrial & Manufacturing Engineering Mechanical Engineering Other

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Implementasi Algoritma PID untuk Pengontrolan Suhu Pada Mesin Pengering Cabai Toar, Handri; Wasdoni Alfi; Illa Aryeni; Nanta Fakih Prebianto; Hana Mutialif Maulidiah; Muammar Khadapi Arif Nasution; Micko Tomas
Journal of Applied Electrical Engineering Vol. 9 No. 1 (2025): JAEE, June 2025
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/jaee.v9i1.9314

Abstract

Penelitian ini mengimplementasikan kontrol PID pada mesin pengering cabai untuk mempertahankan stabilitas suhu selama proses pengeringan. Pengaturan suhu optimal dicapai melalui mekanisme tuning PID dengan metode Ziegler–Nichols untuk mengatur parameter Kp, Ki, dan Kd yang dapat menghasilkan respon sistem yang stabil pada suhu setpoint. Mesin pengering terdiri dari sensor DHT22, pemanas, dan mikrokontroler ESP32, serta terintegrasi dengan aplikasi Home Assistant untuk pemantauan dan pengontrolan jarak jauh. Hasil pengujian menunjukkan bahwa pada suhu 60°C menghasilkan keseimbangan optimal antara kecepatan pengeringan dan kestabilan kelembaban. Implementasi kontrol PID berhasil menjaga suhu mendekati setpoint dengan steady-state error sebesar 0,98%, overshoot yang minimal dan settling time yang optimal. Proses pengeringan menghasilkan penurunan kadar air yang signifikan, dengan berat awal 1 kg menjadi 261 gr setelah pengeringan. Tuning PID menunjukkan efektivitas dalam meningkatkan kestabilan suhu dan kualitas akhir produk cabai kering, serta menjadi solusi dalam mengatasi kendala pengeringan cabai secara konvensional.
Smart Water Control Berbasis Arduino dengan Integrasi Motor Stepper dan Sensor Ultrasonik Tomas , Micko; Illa Aryeni; Aggrivina Dwiharzandis; Zaini, Zaini
Journal of Applied Electrical Engineering Vol. 9 No. 1 (2025): JAEE, June 2025
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/jaee.v9i1.9554

Abstract

Pemborosan air akibat kelalaian mematikan keran sering terjadi di rumah tangga, asrama, dan fasilitas umum. Air yang meluap tidak hanya boros tetapi juga dapat merusak properti. Beberapa penelitian sebelumnya menggunakan sensor level air atau solenoid valve, namun masih memiliki keterbatasan presisi dan fleksibilitas, terutama untuk keran air konvensional. Penelitian ini mengusulkan Smart Water Control berbasis Arduino dengan motor stepper dan sensor ultrasonik untuk solusi lebih presisi dan adaptif. Sistem ini mengintegrasikan motor stepper EM-93 03611 STH-39D172, Arduino UNO, dan sensor Ultrasonik SRF04 untuk memantau ketinggian air. Arduino mengendalikan motor stepper guna memutar keran 90° sebanyak 50 langkah per-siklus secara otomatis dengan buka-tutup berdasarkan data sensor. Kebaruan dari sistem ini terletak pada penggunaan motor stepper untuk keran mekanis konvensional yang memungkinkan kontrol presisi tanpa modifikasi plumbing.
Kerangka Strategis Pengembangan Website Rumah Tahfidz Al - Ghazza Kelurahan Kurao Pagang Kecamatan Nanggalo Kota Nanggalo sebagai Media Penyebaran Informasi dan Komunikasi Laksono, Heru Dibyo; Muharam, Mumuh; Pratama, Rizki Wahyu; Latif , Melda; Afrianita, Reri; Tomas, Micko
Jurnal Andalas: Rekayasa dan Penerapan Teknologi Vol. 4 No. 2 (2024): Desember 2024
Publisher : Electrical Engineering Department Faculty of Engineering Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jarpet.v4i2.106

Abstract

Pengembangan teknologi informasi dan komunikasi (TIK) telah membuka peluang baru bagi lembaga pendidikan, termasuk Rumah Tahfidz, dalam menyebarkan informasi secara efektif. Rumah Tahfidz Al-Ghazza di Kelurahan Kurao Pagang, Kecamatan Nanggalo, Kota Padang, berperan penting dalam pendidikan tahfidz Al-Qur'an, namun menghadapi tantangan dalam penyebaran informasi dan komunikasi secara manual. Kegiatan ini bertujuan untuk merumuskan kerangka strategis pengembangan website Rumah Tahfidz Al-Ghazza sebagai media penyebaran informasi dan komunikasi yang efektif. Metodologi yang digunakan meliputi analisis kebutuhan, perancangan tampilan website, pengembangan fitur seperti sistem pendaftaran online, dan pengujian untuk memastikan fungsionalitas website. Tahapan implementasi ini melibatkan pengumpulan konten, pengujian tampilan di berbagai perangkat, serta optimasi SEO untuk meningkatkan aksesibilitas. Hasil kajian menunjukkan bahwa rencana pembuatan website Rumah Tahfidz Al-Ghazza akan mampu meningkatkan jangkauan penyebaran informasi, keterlibatan masyarakat, serta memfasilitasi komunikasi dua arah yang lebih efisien. Website juga berperan dalam memperkuat citra dan reputasi lembaga di mata masyarakat, mendukung transparansi dalam pengelolaan program, serta memberikan kemudahan bagi santri dan masyarakat dalam mengakses informasi.Website ini diharapkan dapat terus dikembangkan dan dioptimalkan sebagai alat komunikasi yang berkelanjutan dan mendukung dakwah di era digital.
Pengembangan Alat Pengaduk dengan Sistem Pembuangan Uap untuk Usaha Pembersih Lantai di Kota Padang Andre, Hanalde; Emeraldi, Primas; Luthfi, Amirul; Ramadhamy, Queen Hesti; Tomas, Micko; Pratama, Rizki Wahyu; Herier, Gilang Ramadhan; Putra, Rangga; Antoni, Jefri
Jurnal Andalas: Rekayasa dan Penerapan Teknologi Vol. 4 No. 2 (2024): Desember 2024
Publisher : Electrical Engineering Department Faculty of Engineering Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jarpet.v4i2.110

Abstract

Produksi pembersih lantai di Kecamatan Pauh, Kota Padang, menghadapi kendala dalam proses produksi, terutama pada tahap pengadukan bahan kimia yang dilakukan secara manual. Proses ini tidak hanya memakan waktu lama dan tidak efisien, tetapi juga menghasilkan uap berbahaya yang berdampak pada kesehatan pekerja dan masyarakat sekitar. Penelitian ini bertujuan untuk mengembangkan alat pengaduk otomatis yang dilengkapi dengan sistem pembuangan uap guna meningkatkan efisiensi produksi, kualitas produk, dan keselamatan kerja. Alat yang dirancang terdiri dari motor listrik, modul pengatur kecepatan, pewaktu, serta sistem pembuangan uap yang efektif. Metode penelitian mencakup tahapan perancangan, implementasi, dan evaluasi kinerja alat. Evaluasi dilakukan untuk menilai efektivitas alat dalam mempercepat waktu produksi, menjaga standar kualitas produk, dan mengurangi risiko kesehatan. Hasil pengembangan menunjukkan bahwa alat pengaduk otomatis mampu meningkatkan efisiensi produksi, menurunkan biaya operasional, serta meningkatkan keselamatan kerja secara signifikan. Selain itu, penerapan alat ini juga memberikan manfaat berupa standarisasi kualitas produk dan pengurangan dampak negatif terhadap lingkungan. Hasil penelitian ini didokumentasikan dalam laporan kegiatan, artikel ilmiah, dan publikasi media massa, dengan harapan dapat menjadi solusi inovatif bagi usaha rumah tangga lainnya untuk meningkatkan daya saing.
Evaluasi Risiko Keselamatan dan Kesehatan Kerja pada Industri Furnitur Berbasis Metode HIRADC Fandeli, Hary; Tomas, Micko
Jurnal Andalas: Rekayasa dan Penerapan Teknologi Vol. 5 No. 2 (2025): Desember 2025
Publisher : Electrical Engineering Department Faculty of Engineering Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jarpet.v5i2.125

Abstract

The furniture industry is one of the key contributors to Indonesia’s manufacturing sector, supporting national economic growth through exports and employment opportunities. However, this sector is also characterized by a high level of occupational hazards, including exposure to wood dust, machine noise, chemical solvents, and poor ergonomic practices. Small and medium-sized enterprises (SMEs) in particular often lack formal Occupational Health and Safety (OHS) management systems, making workers more vulnerable to accidents and occupational diseases. To address these challenges, this study aims to identify potential hazards, assess risk levels, and provide control recommendations in the furniture production process. The research employed the HIRADC method (Hazard Identification, Risk Assessment, and Determining Control) through field observation and interviews in one of the small and medium industries in Padang City, West Sumatra. The results indicate that most risks fall into the low to moderate categories, with one high-risk activity identified during wood sanding due to dust exposure. Recommended controls focus on applying the OHS control hierarchy, including engineering controls (local ventilation, noise reduction, ergonomic design), administrative measures (training and housekeeping), and the use of personal protective equipment. The findings conclude that HIRADC is effective in minimizing potential hazards and supporting the creation of a safe and sustainable working environment in the furniture industry.
Peningkatan Kemandirian dan Kelayakan Fasilitas Listrik Panti Asuhan Ashabil Rayyan melalui Pelatihan Smart Farming dan Modernisasi Infrastruktur Kelistrikan TOMAS, MICKO; Sylvia Azwar
Jurnal Andalas: Rekayasa dan Penerapan Teknologi Vol. 5 No. 2 (2025): Desember 2025
Publisher : Electrical Engineering Department Faculty of Engineering Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jarpet.v5i2.127

Abstract

Panti Asuhan Ashabil Rayyan di Kota Padang menghadapi kendala serius terkait kelayakan sistem kelistrikan dan keterbatasan fasilitas pendukung aktivitas penghuni. Kondisi instalasi listrik yang tidak aman, minimnya penerangan, serta tidak tersedianya sarana modern seperti sistem ventilasi dan keamanan menjadi faktor penghambat kenyamanan dan keselamatan anak-anak panti. Sebagai wujud kepedulian sosial berbasis teknologi, tim pengabdian dari Departemen Teknik Elektro Universitas Andalas melaksanakan program Pemberdayaan Panti Asuhan melalui Smart Farming dan Modernisasi Listrik. Program ini bertujuan meningkatkan kemandirian dan keselamatan penghuni melalui pemasangan jalur instalasi listrik baru sesuai standar keamanan, penggantian lampu hemat energi, pemasangan CCTV serta exhaust fan di dapur, dan pengadaan mesin cuci untuk mendukung kebersihan lingkungan. Selain itu, dilaksanakan pula pelatihan smart farming hidroponik bagi anak-anak remaja panti untuk menumbuhkan keterampilan produktif dan kemandirian pangan. Kegiatan ini dilaksanakan melalui tahapan survei kebutuhan energi, perancangan sistem, implementasi teknis, serta edukasi partisipatif. Hasil evaluasi menunjukkan peningkatan signifikan pada kualitas penerangan, efisiensi penggunaan energi, dan kesadaran teknis penghuni panti terhadap keselamatan listrik. Program ini tidak hanya menghasilkan perbaikan fasilitas secara fisik, tetapi juga memberikan dampak sosial berupa peningkatan pengetahuan, kemandirian, dan motivasi kewirausahaan berbasis teknologi berkelanjutan.
Development and Performance Evaluation of a Real-Time Environmental Monitoring System Using ESP32, MQTT, Node-RED, and MySQL Database MICKO TOMAS; Refki Budiman; Baharuddin; Riko Nofendra; Hanalde Andre; Elsi Alfionita
Jurnal Andalas: Rekayasa dan Penerapan Teknologi Vol. 6 No. 1 (2026): Juni 2026
Publisher : Electrical Engineering Department Faculty of Engineering Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jarpet.v6i1.143

Abstract

Real-time environmental monitoring is an important requirement for managing facilities, laboratories, server rooms, and work environments that require temperature and humidity control. This study aims to develop and evaluate the performance of an Internet of Things (IoT)-based environmental monitoring system using ESP32 microcontrollers, DHT11 sensors, the Message Queuing Telemetry Transport (MQTT) protocol, Node-RED, and a MySQL database. The system is designed to acquire temperature and humidity data, transmit data via Wi-Fi using MQTT, display real-time measurement results on the Node-RED dashboard, and store historical data into a MySQL database. Testing was carried out with a data transmission interval of every 5 seconds using MQTT QoS 0. The test results showed that the system was capable of continuous monitoring, with a measured temperature range of 27.1–28.5 °C and a relative humidity range of 44–51% RH. Sensor data was successfully transmitted, visualized, and stored in real-time without any loss of observed data during the test period. The Node-RED dashboard can display information as gauges, trend graphs, and historical tables, facilitating the monitoring and analysis of environmental data. The integration of ESP32, MQTT, Node-RED, and MySQL produces a stable, low-cost, easy-to-develop monitoring system with potential for implementation in various IoT-based environmental monitoring applications. The results of the study indicate that the proposed architecture can provide a reliable environmental monitoring solution and support real-time, data-driven decision-making.
Key Determinants of SMEs Sustainable Performance in West Sumatra: A PLS-SEM Analysis Hary Fandeli; Micko Tomas; Fitrah Qalbina; Nasywa Firdaus Har
Jurnal Optimasi Sistem Industri Vol. 25 No. 1 (2026): Published in June 2026
Publisher : The Industrial Engineering Department of Engineering Faculty at Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/josi.v25.n1.p174-190.2026

Abstract

Rising environmental pressures from population growth and industrial expansion in Indonesia necessitate sustainable business practices. Yet, adoption among Small and Medium-sized Enterprises (SMEs) remains obstructed by low energy efficiency, inadequate waste management, limited technological and financial access, and managerial shortcomings. Using‍‌‍‍‌‍‌‍‍‌ two theories, resource based view (RBV) and institutional theory (IT), this study has mapped the relationships between internal and external factors and the triple-bottom-line performance of SMEs. This study investigates and tests these relationships amongst the factors that influence environmental, social, and economic sustainability performance by Partial Least Squares Structural Equation Modeling (PLS-SEM). This study designs the approach as a cross-sectional survey, gathering primary data from 110 SMEs to assess the proposed relationships among internal, external, and sustainability performance. Internal factors consist of green entrepreneurial orientation (GEO), green innovation (GI), and leadership commitment (LC), while market orientation (MO) and stakeholder pressure (SP) represent the external factors. Findings indicate that market orientation (MO) has a positive and significant effect across the entire triple-bottom-line (financial, social, environmental), whereas stakeholders pressure (SP) exerts a significant positive effect only on the financial and social dimensions. On the other hand, the internal factor comprising green entrepreneurial orientation (GEO), green innovation (GI), and leadership commitment (LC) does not significantly impact sustainability performance. These results indicate that among the external drivers examined, market orientation is the most comprehensive predictor of sustainability performance, whereas stakeholder pressure has a significant effect only on the financial and social dimensions. Practically, Indonesian SMEs are advised to constantly interpret and react to market signals and stakeholder expectations, whereas, policymakers are recommended to pair the tool of stakeholder pressure with capability-enhancement programs in terms of the operational system.
Design and Implementation of a Solar-Powered IoT Smart Fish Feeder for Sustainable Freshwater Aquaculture Micko Tomas; Baik Budi; Khadlel Muhammad Romiz
Journal of Applied Computer Science and Technology Vol. 7 No. 1 (2026): Juni 2026
Publisher : Indonesian Society of Applied Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52158/njwes527

Abstract

The utilization of solar energy in aquaculture automation still encounters challenges related to energy efficiency, stability, and adaptive control within IoT-based systems. This research presents the design and implementation of a solar-powered IoT Smart Fish Feeder, developed to enable adaptive feeding schedules with optimized power management. The system is composed of a 100 Wp solar panel, a 25 A MPPT charge controller, a 14.8 V lithium battery, a 2P DC MCB (440 V/25–16 A), and an APZEM-017 ModBus DC wattmeter, integrated with a DC–DC Boost Converter to regulate power delivery for the feeder prototype. Experimental tests were conducted to evaluate solar energy performance under real environmental conditions, focusing on parameters such as voltage, current, power output, and energy conversion efficiency. Results demonstrated that the solar panel achieved an average conversion efficiency of 87.2%, the MPPT controller maintained an efficiency of 95%, the battery system reached a charge–discharge efficiency of 90.4%, and the DC–DC converter operated at 92% efficiency, resulting in an overall system efficiency of 68.8%. The system maintained voltage stability within ±2% and was capable of autonomous 24-hour operation without external power. Compared to previous studies that lacked solar–IoT integration and adaptive control, this prototype provides a novel and energy-efficient solution for sustainable aquaculture. The findings confirm that the proposed design enhances renewable energy utilization, operational reliability, and environmental sustainability in innovative aquaculture applications.
Design and Performance Evaluation of an IoT-Enabled Feed Level Alert System for Smart Fish Feeders Micko Tomas; Baharuddin Baharuddin; Illa Aryeni; Elsi Alfionita Syawal; Muhammad Kodrat
Journal of Applied Electrical Engineering Vol. 10 No. 1 (2026): JAEE, June 2026
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/jaee.v10i1.11692

Abstract

The Feed Level Alert system on the Smart Fish Feeder was designed to monitor fish feed availability in real-time using an Internet of Things approach. Unlike previous research that focused solely on passive monitoring, this system presents a practical implementation equipped with automatic notifications when the fish feed level status reaches a set threshold. The HC-SR04 ultrasonic sensor is used to measure the distance between the tank lid and the feed surface, while the DHT-11 sensor monitors temperature and humidity to maintain feed quality. The ESP32 microcontroller is responsible for processing data and sending alert notifications via Telegram Bot with an average response time of 1,8 seconds. Test calibration results show a detection accuracy of 96,4% and a system reliability of 99,3%. The portable prototype design allows installation without significant mechanical modifications. With its integrative capabilities, this system shows high potential as an efficient, adaptive, and sustainable innovative aquaculture.
Co-Authors Aggrivina Dwiharzandis Amirul Luthfi Antoni, Jefri Baharuddin Baharuddin Baharuddin Baik Budi Elsi Alfionita Syawal Fitrah Qalbina Hana Mutialif Maulidiah Hanalde Andre Handri Toar Hary Fandeli Herier, Gilang Ramadhan Ikhwana Elfitri Illa Aryeni Khadlel Muhammad Romiz Laksono, Heru Dibyo Latif , Melda Muammar Khadapi Arif Nasution Muhammad Kodrat Mumuh Muharam Nanta Fakih Prebianto Nasywa Firdaus Har Pratama, Rizki Wahyu Primas Emeraldi Putra, Rangga Ramadhamy, Queen Hesti Refki Budiman Reri Afrianita Riko Nofendra Sylvia Azwar Wasdoni Alfi Zaini Zaini