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Indra Hardian Mulyadi
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Journal of Applied Electrical Engineering
Published by Politeknik Negeri Batam
ISSN : -     EISSN : 25489682     DOI : -
Core Subject : Engineering,
Control & Systems Engineering Electrical & Electronics Engineering
JAEE (Journal of Applied Electrical Engineering) e-ISSN: 2548-9682 is a peer-reviewed scientific journal published by the Department of Electrical Engineering, Politeknik Negeri Batam, Indonesia. It is a free-of-charge open access journal published in two issues per year (June, December). The journal publishes original papers that show advances in the applied electrical engineering field, which includes, but are not limited to, electronics, microelectronics, instrumentation, electrical (power), telecommunication, electro-material, image processing, robotics, artificial intelligence, machine learning, signal processing, biomedical engineering, electronics manufacturing, computer engineering, control engineering, and automation.
Arjuna Subject : Teknik (semua kategori) - Teknik Listrik dan Elektro
Articles 136 Documents
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Real-Time IoT Temperature Monitoring Using Xiaomi Mijia BLE, ESP32, MQTT, and EMQX Andicho Haryus Wirasapta; Tiara Deta Pamungkas
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.v10i1.12012

Abstract

This paper proposes a low-cost IoT-based real-time temperature and humidity monitoring system as a Bluetooth Low Energy (BLE) to MQTT bridge using an ESP32 microcontroller, Xiaomi Mijia LYWSD03MMC sensor, and EMQX broker. The key novelty of this work lies in the quantification of end-to-end communication performance of a BLE–Wi-Fi–MQTT bridge architecture using commercial off-the-shelf components. Five repeated measurement trials were conducted to evaluate system performance. Results show a mean end-to-end latency of 318 ms (standard deviation: 16,4 ms, max: 342 ms), a packet delivery ratio of 99,6%, and a sensor accuracy of RMSE=0,22°C against a calibrated digital reference thermometer. The system operated continuously for 48 hours with 99,6% uptime and a single automatic reset. Compared to HTTP-based counterparts, the proposed BLE–MQTT bridge achieves 36,6% lower latency. These results confirm the feasibility of integrating proprietary BLE sensors into mainstream MQTT-based IoT platforms using a lightweight and replicable architecture.
IoT-Based Innovative Irrigation System for Chili Using Telegram Bot and Web Dashboard Zulfa Fahrunnisa; Arizal Mujibtamala Nanda Imron; Inta Nurkhaliza Agiska; Wahyu Muldayani; Gamma Aditya Rahardi; Candra Putri Rizkiyah Ramadhani
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.v10i1.12251

Abstract

Chili cultivation requires timely irrigation to maintain soil moisture, yet manual watering is inefficient and difficult to supervise remotely. This paper proposes an IoT-based irrigation system integrating a Telegram bot and a web dashboard for real-time monitoring and control. A soil-moisture sensor provides input to an ESP32 microcontroller, which drives a relay-operated pump using a threshold rule (ON when moisture <30%) and supports manual override via Telegram commands. Sensor readings are logged to Firebase and visualized on a Flask-based dashboard, which features moisture trend graphs. Telegram delivers notifications and supports command-based interaction. Experiments demonstrate an average accuracy of 98,57% and precision of 99,93% compared to a reference meter. End-to-end tests confirm a 0% delivery error, a Telegram notification latency of 1,0–1,8 seconds, and a pump response time of 5,3–5,9 seconds, demonstrating effective automation with practical remote supervision.
Performance Evaluation of a Custom PID-Based Flight Controller Board for Quadcopter Stabilization Ahmad Riyad Firdaus; Daipansyah Arya Saputra; Ezha Tri Saputra; Hendawan Soebhakti; Ryan Satria Wijaya
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.v10i1.12608

Abstract

This paper presents the design, implementation, and evaluation of a custom standalone flight controller board for quadcopter stabilization using a cascaded Proportional–Integral–Derivative (PID) control architecture. The hardware integrates an STM32F405 microcontroller, a BMI270 inertial measurement unit (IMU), and a BMP280 barometric sensor to support attitude and altitude control. Experimental evaluations included IMU accuracy testing, rig-based attitude stabilization, and real-flight trials. The IMU achieved average angular errors of ±0,24° (roll), ±0,74° (pitch), and ±0,41° (yaw), indicating reliable orientation measurement. Step-response analysis showed stable transient behavior, with overshoot values of 9,375% for roll, 25% for pitch, and 1,58% for yaw. Static attitude tests yielded mean absolute errors of 0,171° (pitch) and 0,380° (roll). Flight tests confirmed stable attitude and altitude maintenance under real operating conditions. These results demonstrate that the proposed flight controller provides reliable and scalable performance for quadcopter research and development applications.
Implementation of 5-DOF Robot Arm Control with Inverse Kinematics Through Interactive GUI Ryan Satria Wijaya; Muhamad Ilham; Eko Rudiawan Jamzuri; Anugerah Wibisana; Rifky Afriza; Emelia Rosari Siregar; Senanjung Prayoga
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.v10i1.12658

Abstract

This work presents a control system for a five-joint (5-DOF) robotic arm designed for educational use, combining geometric inverse kinematics with a custom Python graphical interface. Instead of relying on iterative approaches, a closed-form inverse kinematics formulation is implemented to directly derive joint configurations from Cartesian coordinates. System functionality is supported through communication between a host computer and an ESP32 microcontroller via UART serial interface, enabling real-time control, workspace verification, and kinematic validation using forward kinematics. For simplicity in operation, the wrist orientation is kept fixed so that the control system focuses primarily on positional accuracy. experimental results show an average IK computation time of 1,7 ms, a mean positioning error of 2,46 mm, and a peak deviation of 4,91 mm across representative workspace targets. The obtained results confirm that the system achieves stable and reliable performance suitable for low-cost laboratory experimentation and educational robotics applications.
Comparative Performance Analysis of PID and Fuzzy Logic Controllers for AC Motor Speed Control under Load Sumantri Kurniawan Risandriya; Muhamad Revi Ilhami; Muhamad Ikhsan Azri
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.v10i1.12659

Abstract

The cutting quality of materials such as acrylic and PCB is strongly influenced by spindle speed stability. Excessive speed in acrylic cutting can cause melting and poor surface finish, while low speed increases cutting force and produces burrs. In FR-4 PCB materials, unstable rotation may lead to defects such as delamination and reduced hole quality. Therefore, precise and stable AC motor speed control is essential. This study analyzes and compares the performance of PID and Fuzzy Logic Controllers (FLC) in controlling AC motor speed using a VFD and Arduino in a closed-loop system. Performance is evaluated based on overshoot, rise time, and steady-state ripple error (SSRE) under different setpoints and loads, including 3 mm acrylic and single-layer PCB. Results show that higher setpoints improve stability. The PID controller consistently provides lower overshoot, faster response, and smaller SSRE, especially at low speeds. Overall, PID is more effective, while FLC gives smoother response.
Comparison of Fuzzy Mamdani and Fuzzy Tsukamoto Methods on Automatic Spray Fan Simon Petrus Silalahi; Agnes I Nababan; Daniel Sutopo Pamungkas; Adlian Jefiza
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.v10i1.12925

Abstract

This study evaluates the implementation of Fuzzy Mamdani and Fuzzy Tsukamoto inference methods in an automated spray fan system designed to mitigate thermal discomfort in tropical climates. Utilizing an Arduino UNO integrated with DHT11 and PIR sensors, the system regulates fan speed and a water pump based on ambient temperature and human presence. Experimental results from 22 data points (25,8°C to 33,3°C) indicate that the Mamdani method exhibits higher sensitivity, initiating fan speed increases at 26,1°C and spray activation at 29,5°C. In contrast, the Tsukamoto method provides a more stable and gradual response, with fan transitions occurring at 28,4°C and spray activation at 30,5°C. While Mamdani is suitable for rapid cooling requirements, Tsukamoto demonstrates superior operational stability and energy efficiency through monotonic output functions. Manual calculations for both methods showed 100% consistency with experimental hardware outputs.

Page 14 of 14 | Total Record : 136

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