JURNAL ELEKTRO

Implementasi IoT pada Sistem Parkir Pintar Berbasis ESP32 dengan Monitoring Real-Time ThingSpeak

2026-02-24T23:43:49+08:00

The rapid advancement of technology has made daily life more efficient and practical. Technology has begun to replace conventional parking methods that lack real-time information and are prone to human error. This study introduces a smart parking system innovation based on the ESP32 microcontroller as a solution to the limitations of conventional parking systems that are unable to provide accurate real-time information. The objective of this research is to design and test an ESP32based smart parking system capable of providing real-time and precise information on parking slot availability. The method employed is prototype engineering with a descriptive approach, which includes device design, component testing, and documentation. The test results show that the smart parking system works optimally and responsively. Infrared sensors are able to detect vehicles and activate servo motors that operate for 5 seconds. The LCD displays real-time parking information, while ultrasonic sensors provide accurate readings at distances of ≤15 cm. A red LED lights up as an indicator when a parking slot is occupied (distance <15 cm), while a green LED lights up when the slot is available (distance >15 cm). Integration with ThingSpeak and ThinkView applications runs smoothly with a fast update interval of approximately ±15 seconds, and the ESP32-CAM successfully records vehicles entering and exiting with clear results. Component power consumption is stable, with voltage and current measurements in line with their functions: the infrared sensor recorded an average voltage of 3.7 V without load and 0.15–0.16 V with load, with currents ranging from 3.7–4.1 mA without load to 7–9 mA with load. The SG90 servo motor maintained a stable voltage of around 4.9 V both with and without load, while current increased from 2.7–2.8 mA to 1213 mA during operation. In conclusion, the ESP32-based smart parking system has proven effective in providing real-time parking information, with recommendations for large-scale implementation and the addition of a license plate recognition feature to further enhance functionality.

Analisis Sistem Proteksi Penangkal Petir Eksternal Dengan Metode Sudut Pada Gedung Bertingkat

2026-02-12T23:04:13+08:00

Geographically Indonesia as a tropical country located on the equator and is a maritime continent with a vast sea, relatively high rainfall causes relatively high air humidity, this causes lightning clouds containing electric charges to form very easily with destructive properties, seeing some of the damage that usually arises due to lightning strikes, then an effort to overcome the strike is known as lightning protection. In this type of research, a type of quantitative research is carried out with the processing and calculation of output data from observations including multi-storey building data, thunder days, specifications and types of lightning rods, lightning current conductors, and grounding systems with standard criteria based on the 1983 General Lightning Installation Regulations (PUIPP) and SNI 03-7015-2004. estimated risk of lightning strikes index value of 22, average annual strike frequency of 2.43 strikes and lightning strike efficiency value of 0.96 protection level I. minimum cross-sectional area 22.5 mm. Minimum cross-sectional area of 22.5 mm2, 2x35 mm2 coaxial cable installed and the total resistance value of multiple ground rod electrodes of 1.04Ω, a maximum of 2.5Ω is in accordance with the standard and in the air termination with the calculation of the radius of the rolling ball with a radius of 20 m lightning strikes each end of the building side are still exposed to the touch of the rolling ball. Because the air termination installed is conventional type, the calculation of air termination with electrostatic lightning rod protection Angle a is ∠42.06º with a lightning strike distance to the building as high as 134.15 m. Therefore, optimization is carried out using an electrostatic type lightning rod Flash Vectron FV6 brand with a radius of 140 m.

Pemanfaatan Sistem Monitoring Berbasis IoT Dan Sensor Cerdas Untuk Restorasi Ekosistem

2026-02-16T01:20:01+08:00

Indonesia has targeted a 31.89% reduction in greenhouse gas emissions through its own efforts and up to 43.20% with international support by 2030. One of the main strategies in achieving this target is through ecosystem restoration, particularly forests and peatlands, which play a crucial role in carbon sequestration. However, restoration efforts still face challenges such as limited field data, delays in detecting ecosystem changes, and minimal technology integration in monitoring. To address these issues, this study proposes the use of an Internet of Things (IoT)-based monitoring system and smart sensors as an innovative solution. The research method used was a Literature Review, a research approach based on the collection, evaluation, and synthesis of various relevant scientific works to build a conceptual understanding of a topic. The results indicated that IoT implementation in Indonesia faces significant challenges, with network infrastructure in remote areas, limited implementation costs, uneven technical skills, and data security issues being the main obstacles. Furthermore, successful implementation requires institutional support, regulations, and local community participation to optimize the use of IoT-based monitoring systems.

Monitoring dan Analisis QoS Jaringan Wireless LAN di Gedung Harni Koesno: Studi Kasus dengan Wireshark dan Thiphone

2026-02-16T17:14:44+08:00

This study examines the quality of the Wireless LAN (WLAN) network at Harni Koesno Building, Department of Midwifery, Poltekkes Kemenkes Jakarta III, focusing on Quality of Service (QoS) analysis. The aim is to measure and evaluate WLAN QoS performance through aspects such as delay, bandwidth, jitter, and packet loss. Data collection techniques included direct observation, network analysis software and user surveys. The results show a delay of 22.22 ms, 0% packet loss, and 68.70 ms jitter, all categorized as "Excellent" according to Telecommunication and Internet Protocol Harmonization Over Networks (TIPHON) standards. This study aims to offer an overview of QoS of the WLAN network in Harni Koesno Building and propose recommendations for network performance improvements, with the goal of enhancing user satisfaction within the Poltekkes environment, particularly in Harni Koesno Building.

Rancang Bangun Sistem Moitoring Pada Motor Induksi 3 Phase

2026-02-01T14:42:09+08:00

In industrial manufacturing, electricity is one of the most critical resources for sustaining operations, particularly production activities. Therefore, electrical systems must remain in optimal condition, ideally operating continuously without interruption. Proper maintenance and periodic monitoring are essential to ensure reliability. Failures in production machinery often arise from multiple factors, not only disturbances in the power supply but also external interferences such as animals..

To address these challenges, a Three-Phase Current and Voltage Monitoring Device was developed to facilitate real-time monitoring of all production panels without requiring direct on-site inspection, thereby improving time efficiency. The system employs a NodeMCU microcontroller integrated with a PZEM-004T sensor, utilizing an IoT-based platform via Blynk. The measurement error achieved is approximately 0.54%.

The advantage of this monitoring tool lies in its ability to identify the cause of phase trips when the flowing current exceeds the protection settings, thereby simplifying the analysis of disturbances and enhancing overall system reliability.

Analisis Penggunaan Selenoid 24 VDC Pada Jalur Masuk Membran Terhadap Sistem Kerja Dispenser RO Magna

2026-02-25T00:22:30+08:00

The condition of the raw water path in the RO (Reverse Osmosis) Magna dispenser which does not close completely towards the membrane when the storage tank is full which results in the membrane producing excess product water and reject water resulting in waste of raw water. The use of a 24 VDC selenoid aims to withstand raw water pressure when the storage tank is full. The purpose of this study was to determine the effect produced after installing a 24 VDC selenoid to the membrane. The techniques used in this research are observation and interviews. The function of the 24 VDC selenoid is to hold water in the raw water line that will enter the membrane. The results showed that there was no excessive discharge of reject water when the storage tank was full. From the results of the study it was found that when using a Automatic Shut Off Valve as a water retainer produced as much as 180 ml of reject water per minute, then when using a selenoid as a water retainer, it produced 0 ml of reject water per minute. The use of selenoids to replace the role of Automatic Shut Off Valve as water retainers when the storage tank conditions are full can be said to be successful because the membrane no longer gets raw water pressure. For the next step, you can test similar tools to get comparable and optimal results.

Rancang Bangun Monitoring Daya, Suhu, dan Getaran Terhadap Kecepatan Motor 1 Fasa Berbasis Internet of Things

2026-02-25T00:39:01+08:00

The performance of induction motors in modern industries is crucial to prevent downtime due to unrecorded motor damage during preventive maintenance. The utilization of the Internet of Things (IoT) is highly beneficial due to the ubiquitous use of the internet, which can be leveraged to develop and implement a motor monitoring tool. This research employs various sensors, such as the PZEM004T-Open CT sensor for power detection, the SW-42 sensor for vibration detection, an infrared sensor for motor speed detection, and the DHT11 sensor for temperature detection, as well as an amp clamp meter, multitester, and thacometer. These tools are useful for detecting motor performance over time. This is a quantitative study. The results yield data in the form of numerical measurements that can be analyzed and compared with existing standards. The average calculated voltage value is 1.5 volts with an average deviation of 1.47%. The average current value is 0.01 amperes with an average deviation of 6.06%. The average power value is 0.52 watts with an average deviation of 1.67%. The average rotational speed is 221.5 RPM with an average deviation of 12.92%. The average vibration value is 1.53 mm/s, with a noticeable increase in vibration to be cautious of when the dimmer is set at 60%, which shows a vibration value of 0.36 mm/s. The average motor temperature is 37.9 ℃

Rancang Bangun Sistem Kontrol Modutrol Valve Menggunakan Sensor Suhu untuk Efisiensi Steam di PT Prakarsa Alam Segar

2026-02-19T13:55:38+08:00

In industrial processes, steam is widely used for heating, drying, and sterilization. However, manual or on–off steam control often leads to energy waste and unstable temperature. This study designs and implements an automatic control system using an RTD PT100 sensor, temperature transmitter, PLC (M221), and modutrol valve. A PID algorithm was applied to proportionally adjust the valve opening according to the actual temperature. The results showed that the system maintained a maximum deviation of ±2 °C from the 160 °C setpoint with a response time of less than 10 seconds. Steam consumption decreased significantly from 4,029 tons (January 2024) to 2,368 tons (May 2025), equivalent to about 41.24% savings. The estimated cost savings range from IDR 332 million to IDR 581 million per month. The system proved effective in improving thermal stability, energy efficiency, and reducing operator workload.