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INDONESIA
Jurnal E-Komtek
Published by Politeknik Piksi Ganesha Indonesia
ISSN : 25803719     EISSN : 26223066     DOI : https://doi.org/10.37339/e-komtek.v4i2.269
Core Subject : Science, Engineering,
Computer Science & IT Electrical & Electronics Engineering
Jurnal E-Komtek (Elektro-Komputer-Teknik) is a Journal that contains scientific articles in the form of research results, analytical studies, application of theory, and discussion of various problems relating to Electrical, Computer, and Automotive Mechanical Engineering.
Arjuna Subject : Ilmu Komputer (semua kategori) - Visi Komputer dan Pengenalan Pola
Articles 23 Documents
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Search results for , issue "Vol 7 No 2 (2023)" : 23 Documents clear
Designing a Web-Based Student Attendance Information System Using Extreme Programming Methods at the Bandung Praktisi Polytechnic Yudhi Yanuar; Ari Waluyo
Jurnal E-Komtek (Elektro-Komputer-Teknik) Vol 7 No 2 (2023)
Publisher : Politeknik Piksi Ganesha Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37339/e-komtek.v7i2.1464

Abstract

This research aims to design a student attendance information system. In developing the information system, we used the method of observing research objects and conducting literature studies. We used object-oriented modelling with UML tools to describe the student attendance information system. In addition, extreme programming was used to develop the student attendance information system. In creating a student attendance information system using the PHP and MySQL programming languages as the System Management Database, the test results of the student attendance information system at the practitioner Polytechnic can be used well and effectively.
Implementation and Analysis of WiFi Human Interface Device (HID) USB Using ATMEGA32U4 and ESP8266 Gilang Ryan Fernandes; Ika Mei Lina
Jurnal E-Komtek (Elektro-Komputer-Teknik) Vol 7 No 2 (2023)
Publisher : Politeknik Piksi Ganesha Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37339/e-komtek.v7i2.1478

Abstract

Advances in technology have resulted in hacking occurring everywhere. Hacking is the act of illegally accessing data and information. It is not uncommon for many hacking cases to harm various parties due to ignorance. The results of hacking at this time are widespread, one of which is a ransomware virus that can encrypt data, a keylogger is software that can monitor keyboard activity, and a WiFi USB human interface device which is where this attack is a virtual keyboard. This research assembles the components used for Human Interface Device (HID) by utilizing ATMEGA32U4 as a virtual keyboard and ESP8266 as WiFi media. This technique is used to obtain target information and data. This research aims to make people more careful and overcome hacking. It is hoped that people will be more concerned about system and data security. Based on the research results, WiFi HID USB attacks can be dangerous for computer owners who need to be more aware of various hacker attacks because this technique can directly take target access.
Modified Buck Boost DC-DC Converter with Hyeteresis Band on Ocean Wave Emulator Purnata, Hendi; Hera Susanti; Sugeng Dwi Riyanto; Agus Santoso
Jurnal E-Komtek (Elektro-Komputer-Teknik) Vol 7 No 2 (2023)
Publisher : Politeknik Piksi Ganesha Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37339/e-komtek.v7i2.1487

Abstract

Indonesia has the potential of sea wave energy with the second largest coastline having a density of up to 20 kW / m2. Currently, the use of sea wave technology is still at the prototype stage, with several weaknesses such as erratic sea waves, tides and ocean currents so that they can affect the power generated in ocean wave energy. The results of ocean wave energy in mechanical arrays cannot be utilized because of erratic waves. The higher the wave, the greater the power generated and vice versa. If this problem is not resolved, it can cause unstable power output and cause damage to electronic equipment. The solution to this problem is to modify the DC-DC buck boost converter circuit using the Hyeteresis band method, which limits voltage surges below or above to produce the desired voltage in order to maintain constant power and as energy for storage in the storage system. The result of this study is that the performance of DC generators in producing voltage is greatly influenced by speed. At low speeds, the voltage produced by the generator is still too low to charge the battery or in other words cannot be in a perfect charging position, while at maximum speed it produces voltage with Achieve a level sufficient for battery charging. Therefore, control and adjustment of generator speed is key in maximizing battery charging efficiency using a buck-boost converter.
Analysis of Steel Cutting Results Using a Semi-Automatic Oxy-LPG Gas Cutting Machine Aziizudin, Achmad; Hidayat, Arif; Sidik Purnomo
Jurnal E-Komtek (Elektro-Komputer-Teknik) Vol 7 No 2 (2023)
Publisher : Politeknik Piksi Ganesha Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37339/e-komtek.v7i2.1518

Abstract

Industri manufaktur baja merupakan salah satu bahan utama disetiap pembuatan alat. Baja sendiri memiliki ketebalan yang berbeda-beda sesuai dengan kegunaannya, mulai dari 1 mm-20 mm. Semakin tebal baja yang digunakan, maka proses fabrikasi terutama pemotongan baja tersebut akan semakin sulit. Pada umumnya, alat yang digunakan untuk memotong baja yang tebal adalah Gas Cutting dengan jenis gas yang digunakan berupa Oksigen dan LPG (Liquified Petroleum Gas), atau bisa juga menggunakan gas Oksigen dan Acytelene, hal ini lebih efektif jika dibandingkan dengan memotong baja atau baja menggunakan gerinda potong. Tetapi operator yang mengoperasikan gas cutting ini sangat mempengaruhi kerapian hasil potongan. Dengan adanya masalah tersebut, penelitian ini bertujuan untuk menganalisis hasil potongan baja atau baja menggunakan gas cutting Oxy-LPG semiotomatis, dan kemudian hasil penelitian ini dibandingkan dengan hasil potongan baja atau baja menggunakan gas cutting Oxy-LPG konvensional.
Prototype of Riding Accident Detection System Using R3 SMD Microcontroller Based on GPS and IoT Setiadi, Teguh; Wijayanti, Aris
Jurnal E-Komtek (Elektro-Komputer-Teknik) Vol 7 No 2 (2023)
Publisher : Politeknik Piksi Ganesha Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37339/e-komtek.v7i2.1526

Abstract

The incidence of road accidents is quite high. This is due to driver negligence. Based on these problems, a driving accident detection system was created. The system uses vibration sensors, tilt sensors, and pressure sensors as inputs to detect driving accidents. The system is supported by an Arduino uno kit with an R3 SMD microcontroller as the brain to process data from vibration, tilt, and pressure sensors, and is equipped with GPS and ESP32. Then, the output to ESP32 will send notification information to Telegram by detecting GPS, so that it will automatically send notification of driving accident coordinates. From the making of this system, it can be concluded that, if a driving accident occurs, it will automatically send information directly to the victim's family quickly. The system will work if the sensor is detected and will send data to the phone number stored in the database. So that victims can be handled more quickly to avoid casualties.
Application of IoT Based Renewable Energy For Electric Power Laboratory Campus C In Politeknik Piksi Ganesha Muhammad Wildan Naufal Hilmi; Ardelia Astriany Rizky; Istito'a Pebrianti Pramanik; Rifki Maulana Sidik; Oscar Rachman
Jurnal E-Komtek (Elektro-Komputer-Teknik) Vol 7 No 2 (2023)
Publisher : Politeknik Piksi Ganesha Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37339/e-komtek.v7i2.1529

Abstract

The rapid advancement of technology has increased efficiency in human activities while also escalating electricity consumption, especially with the implementing of the Industry 4.0 revolution in Indonesia. To enhance the use of renewable energy, IoT technology is employed to optimize system performance with real-time data and remote control. In the second-floor laboratory of campus c Piksi Ganesha Polytechnic, there are frequent power outages due to simultaneous use of the lab. The advantage of using this energy is that PLN electrical sources can be replaced using solar panels. This research integrates renewable energy with IoT to improve laboratory electricity usage efficiency. An ESP32-based solar panel is used to collect and control energy data. Successful testing demonstrates the ability of this system, with a 67% utilization of renewable energy. The solar cell requires attention from hardware devices. The integration of renewable energy with Telegram is efficient and can be applied to another system.
Design of a NodeMCU-Based Real-Time Air Quality Monitoring System Using the Blynk Application Wirawan, Elvan Satria; Asni Tafrikhatin; Instianti Elyana
Jurnal E-Komtek (Elektro-Komputer-Teknik) Vol 7 No 2 (2023)
Publisher : Politeknik Piksi Ganesha Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37339/e-komtek.v7i2.1533

Abstract

Currently, air quality monitoring is only through satellites, so this monitor is only general; even though sometimes we need an air quality monitor to measure air quality in the room or gas emissions in motor vehicles and factories, this research uses an MQ135 sensor to measure CO2 gas emissions, a DHT11 sensor to measure humidity and a NodeMCU ESP8266 microcontroller as the central brain. The system is designed to provide accurate and efficient air quality monitoring through the Internet of Things (IoT). They are integrating Blynk as a mobile device monitoring application that offers easy access to real-time air quality data. The Blynk interface allows users to monitor air conditions easily, receive notifications, and access data history. Based on the experimental results and the accuracy of the integrated temperature measurement, the system provides a reliable solution for comprehensive air quality monitoring in various environments.
Optimization of Vertical Axis Darrieus Wind Turbine As Aerator Generator Musyafiq, Afrizal Abdi; Illahi , Novita Asma; Purwiyanto; Vicky Prasetia; Hera Susanti
Jurnal E-Komtek (Elektro-Komputer-Teknik) Vol 7 No 2 (2023)
Publisher : Politeknik Piksi Ganesha Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37339/e-komtek.v7i2.1538

Abstract

Research has focused on a wind turbine system with a vertical-axis Darrieus design with a capacity of 15 watts, serving as an aerator for aeration or adding air to water. The Darrieus turbine, made of aluminium with three corners and a modified NACA 0018 model optimized to work at low wind speeds of 2 m/s, effectively powers a 4-watt DC aerator. Generator voltage readings show a minimum value of 2 volts at a wind speed of 1 m/s and a maximum value of 12.8 volts at a wind speed of 6.2 m/s. The calculated power coefficient is 0.3. Charging the accumulator with a 12 volts/12 Ah takes 23 hours with a generator voltage of 13 volts at a wind speed of 6 m/s. This research reflects Indonesia's progress in optimizing wind energy for sustainable power generation.
Simulasi Pemadam Kebakaran Otomatis Menggunakan Sensor Api Berbasis Arduino Uno Asni Tafrikhatin; Rouf Wangafif; Jati Sumarah; Ajeng Tiara Wulandari; Apriansyah Zulatama
Jurnal E-Komtek (Elektro-Komputer-Teknik) Vol 7 No 2 (2023)
Publisher : Politeknik Piksi Ganesha Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37339/e-komtek.v7i2.1545

Abstract

One of the efforts to prevent fires is by providing occupational health and safety (K3) learning. In the learning process, the material is only in videos and power points about fire prevention and control. Conversely, students more easily understand contextualized material. One of them is an automatic fire extinguisher simulation. This simulation uses a fire sensor as its input, Arduino uno as its control, and a relay as an output from Arduino. This learning media was tested on 40 people with backgrounds as students and employees. Based on the results of this learning media trial, the average questionnaire assessment reached 87.6%, so this learning medium is effective as a learning medium for fire extinguisher simulation.
Analysis of O2 Sensor Troubleshooting on Exhaust Gas Emissions and Fuel Consumption at Piksi Ganesha Indonesia Polytechnic Devi Septiyani; Bahtiar Wilantara; Ismail Kholid; Sidik Purnomo
Jurnal E-Komtek (Elektro-Komputer-Teknik) Vol 7 No 2 (2023)
Publisher : Politeknik Piksi Ganesha Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37339/e-komtek.v7i2.1547

Abstract

This research aims to analyze O2 sensor troubleshooting on exhaust emissions and fuel consumption. The research method is comparative. Research steps by analyzing exhaust emissions and fuel consumption without an O2 sensor and with an O2 sensor at idle, 1000, 1500, and 2000 rpm. Research results: 1. comparison of exhaust emissions without O2 sensor and with O2 sensor, namely: idle rotation, CO = 7.41>3.33%, HC = 489 <497%, CO2 = 9.7 <12.5%, O2 = 13.44>0%, 1000 rpm, CO = 7.35>1.52%, HC = 686>538 ppm, CO2 = 9.7>11.8%, O2 = 10.91>2.20%, 1500 rpm, CO= 5.43>1.32%, HC= 666>472 ppm, CO2= 6.7>12.4%, O2= 13.25>4.95%, 2000 rpm, CO= 7.10>0.37%, HC= 499>272 ppm, CO2= 10.1<13.0%, O2= 11.24>9.03. 2. comparison of fuel consumption without o2 sensor and with o2 sensor, namely: idle rotation: 35=35ml, 1000 rpm: 15=15ml, 1500 rpm: 25>15ml, 2000 rpm: 15=15ml.

Page 2 of 3 | Total Record : 23

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