Jurnal Media Elektro

RANCANG BANGUN ALAT MIXING WARNA CAT OTOMATIS UNTUK UJI APLIKASI PADA PLAT LOGAM BERBASIS ARDUINO

2026-05-01T00:38:55+00:00

The precise mixing of paint colors is crucial in painting industry. This process requires high accuracy and skill in measuring the base colors needed to produce the desired final color. But in most case paint mixing process still be done in a manual way which can pose risks, such as generating inconsistent or inaccurate colors. Based on these conditions this research aims to design paint mixing device to assist in achieving more accurate and efficient color mixing process by using Arduino as the main processor to control paint measurements through integration with TCS-3200 sensors and actuators to improve efficiency and the quality of color mixing based on specific requirements. Result of the tests showed that the device able to perform a promising result, with the average error value of just 9,61%. Several factor which may affect of the results include light ambience condition around the device, paint color calibration, and uniformity in of the paint color used.

RANCANG BANGUN PEMBANGKIT LISTRIK TENAGA SURYA UNTUK PENETASAN TELUR AYAM KAMPUNG

2026-05-01T00:43:14+00:00

Electric power is essential for daily activities; however, power outages frequently disrupt electricity supply, particularly for small-scale applications such as egg incubation in free-range poultry farming. The incubation process requires continuous electrical energy to maintain heat using a 15-watt lamp for approximately 21 days. To address this issue, alternative energy sources, especially solar energy, can be utilized through photovoltaic (PV) systems. However, PV systems inherently produce unstable output voltage due to fluctuations in solar irradiance, which may affect battery charging performance. To overcome this limitation, a Buck-Boost converter is implemented to regulate and stabilize the PV output voltage. In addition, temperature and humidity sensors are integrated into the incubator system to ensure optimal environmental conditions for egg hatching. Experimental results show that the Buck-Boost converter successfully stabilizes the PV voltage at 14 V, with an average current of 1.5 A in the first week, and 1.4 A in both the second and third weeks. Furthermore, the incubator maintains an average temperature of 37°C and humidity of 56%, which fall within the recommended range for successful egg hatching. These results indicate that the proposed system is capable of providing a stable energy supply while maintaining suitable incubation conditions.

ANALISIS PERFORMA PROTOKOL MQTT PADA SISTEM MONITORING GAS BERBAHAYA MENGGUNAKAN SENSOR MQ135 TERINTEGRASI ANDROID

2026-05-01T00:38:57+00:00

This study analyzes the performance of the MQTT protocol in a hazardous gas monitoring system using an MQ135 sensor based on a NodeMCU ESP8266 microcontroller, integrated with a Flutter-based Android application as a notification medium for laboratory safety. The monitored gases include CO, NO₂, CO₂, and SO₂. The objective of this study is to evaluate the Quality of Service (QoS) parameters of the MQTT protocol, including delay, jitter, packet loss, and throughput, across three QoS levels (0, 1, and 2) within the context of a laboratory safety system. Sensor validation was conducted using Repeatability Test and Threshold Detection Test methods without standard gas measurement instruments. The results show that the MQ135 sensor achieved a coefficient of variation (CV%) ranging from 1.92% to 3.78% (reliable, CV% < 5%) and an average detection success rate of 98.9% across 150 test scenarios. MQTT QoS 0 produced an average delay of 42.3 ms, jitter of 3.12 ms, 0% packet loss, and a throughput of 18.6 kbps, categorized as “Very Good” based on TIPHON standards. This study concludes that MQTT QoS 1 is the optimal choice for laboratory gas monitoring systems, as it balances message delivery reliability with network efficiency in real-time environments.

COMPARATIVE ANALYSIS OF NEXT.JS AND GOLANG BACKEND ARCHITECTURE IN THE CIVIL RECORDS MANAGEMENT SYSTEM (SELLICA)

2026-05-01T00:38:58+00:00

Sistem Evaluasi Layanan Lengkap Individu dan Catatan Aktivitas (SELLICA) was initially built using a monolithic architecture based on Next.js API routes. However, as the user scale increased, the system experienced performance and efficiency bottlenecks under heavy workloads. This study aims to conduct a comprehensive comparative analysis between an integrated Next.js backend architecture and a separated, service-oriented Go (Golang) backend for government-scale applications. The research method employs quantitative evaluation through performance testing (load testing with K6 and benchmarks) as well as qualitative evaluation of architectural complexity and development experience. The results indicate that migrating to a Go backend provides a response time improvement of 20 to 289 times faster, 20.25 times higher throughput, and memory usage efficiency up to 4 to 5 times lower compared to Next.js. Conversely, Next.js maintains advantages in rapid initial development and prototyping ease. In conclusion, for large-scale systems with stringent performance and concurrency requirements, a Go backend is highly recommended. A hybrid architectural approach, combining a static Next.js frontend with a Go backend, proves to be the most optimal solution in balancing high performance and cost efficiency.

CASCADED VECTOR CONTROL WITH FIELD-ORIENTED CONTROL FOR AC INDUCTION MOTOR POSITION SERVO

2026-05-01T00:38:58+00:00

Precise position control of AC induction motors is essential in various industrial applications, including robotics, machine tools, and automated manufacturing systems. The main challenges arise from the nonlinear dynamics of induction motors and the lack of inherent position feedback. This study proposes a three-tier cascaded control architecture integrating a PD position controller, a PI speed controller, and a Field-Oriented Control (FOC) current loop, with a 1:10:100 bandwidth hierarchy among the loops. This design ensures effective dynamic decoupling and global asymptotic stability, verified through Lyapunov-based analysis, including robustness against rotor parameter uncertainties up to ±20%. Numerical simulations on a 1.5 kW induction motor demonstrate a rise time of 0.157 s, settling time of 0.267 s, overshoot of 9.8%, steady-state position error of 0.0008 rad, and disturbance rejection of a 2 N·m load in 95 ms. FOC implementation maintains rotor flux within ±0.1% and peak efficiency of 91% at rated torque. These results confirm that the proposed cascaded three-tier FOC architecture achieves fast, accurate, and stable position control suitable for industrial servo applications and can be extended to other AC motor types with parameter adjustment and flux control strategies.