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Vokasi UNESA Bulletin of Engineering, Technology and Applied Science
Published by Universitas Negeri Surabaya
ISSN : -     EISSN : 30640768     DOI : https://doi.org/10.26740/vubeta.v1i1
Core Subject : Science, Engineering,
Computer Science & IT Engineering Mechanical Engineering Transportation
Vokasi Unesa Bulletin Of Engineering, Technology and Applied Science is a peer-reviewed, Quarterly International Journal, that publishes high-quality theoretical and experimental papers of permanent interest, that have not previously been published in a journal, in the field of engineering, technology, and applied sciences that aim to promote the theory and practice of Engineering, Technology And Applied Science.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 10 Documents
 1 
Search results for , issue "Vol. 1 No. 2 (2024)" : 10 Documents clear
LoRa-based DC Motor Control and Yagi Antenna Wicaksono, Alfiyanto Wahyu; Nawawi , Akhmad; Erfin Prafitama Setiawan , Muhammad; Herwanto , Yoko; Aribowo, Widi; Herjuno, Dimas
Vokasi Unesa Bulletin of Engineering, Technology and Applied Science Vol. 1 No. 2 (2024)
Publisher : Universitas Negeri Surabaya or The State University of Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/vubeta.v1i2.34852

Abstract

With the advancement of wireless communication technology, appropriate solutions such as LoRa SX1278, a long-range intermediate module with a wider range of IoT applications have become available. Nevertheless, problems still exist, especially in Non-Line of Sight (N-LoS) circumstances that can favor transmission. On the other hand, the demand for more effective motors in the household sector is growing, where DC motors provide purchasing managers with advanced and low-cost direct control capabilities over AC induction motors. Suggested approaches include the use of omni-directional antennas to increase the transmission range of LoRa as well as the application of DC motors to improve operational efficiency. This work develops the necessary techniques to increase the communication range of LoRa and optimize the use of DC motors in a small industrial setting. The research procedure consisted of investigating the automatic control of a 12V DC motor using an Arduino Uno and a DHT22 temperature sensor, and the study of remote control via LoRa SX1278 with switching mode logic. The tests conducted confirmed that the percentage error of DC motor control was 0.78%, 0.42%, and 0.26% in each category, respectively. There is also a clear 600m and 6250m data transmission range on the LoRa in two different locations, featuring the same switching logic. In summary, the embellishment of LoRa SX1278 through omni-directional antenna anchoring and mode switching logic on the LoRa SX1278-based DC motor control system displays efficient operation and extended transmission range, thus offering antimicrobial potential in household industrial applications.
Off-Grid Solar System Monitoring based on ESP-32 and INA219 In Pesanggrahan Gordomulyo permana Muqorrobin, zufar; Nawawi, Akhmad; Aris Ardani, Achmad; Putra Setia, Singgang; Rahmadian , Reza
Vokasi Unesa Bulletin of Engineering, Technology and Applied Science Vol. 1 No. 2 (2024)
Publisher : Universitas Negeri Surabaya or The State University of Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/vubeta.v1i2.34859

Abstract

The main problem in the highland area of Pesanggarahan Gordo Mulyo is the difficulty of monitoring and maintaining PLTS due to the remote location and no reliable communication signal. As a solution, this research developed a remote PLTS monitoring system using ESP32 and Handy Talkie communication, which allows automatic data transmission without internet connection. This research contributes to the optimization of the monitoring system adapted to the surrounding environmental conditions. Testing has 3 categories, in the PV solar panel monitoring test, the highest voltage is 37.1 V, the highest current is 2.1 A, and the maximum power generated is 81 W. Error calculations are also carried out to see the performance of the INA219 sensor with a multimeter measuring instrument, the test results for voltage, current, and power are 0.3%, 1.8%, and 1.26%. The last test is sending data in the form of voice through HT transmission, the data sent is similar to the data received in five tests. Based on each test, this tool has a small error rate, so it can be one of the innovations in the world of monitoring solar power plants.
"E-UMKM" Mobile Application to Increase Productivity and Competitiveness of MSMEs in the Digital Era: Evaluation and Implementation in the Digital Era Kusuma, Fajar; Fatima, Izma; Yuningtyas, Laras Andita; Octaviani, Dita
Vokasi Unesa Bulletin of Engineering, Technology and Applied Science Vol. 1 No. 2 (2024)
Publisher : Universitas Negeri Surabaya or The State University of Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/vubeta.v1i2.34877

Abstract

Digital technology continues to develop rapidly and influence the MSME sector. The development of digital applications for MSMEs, such as BukuKas and Majoo, has helped business people manage their business more efficiently, from financial management to digital marketing. These applications simplify administrative tasks, expand market access, and increase competitiveness. This research uses the 4-D model in development application, involving media, content and MSME practitioner expert validators to assess the feasibility of the application. The research instrument is a questionnaire with a Likert scale, assessed by Media, Content and MSME Practitioner experts with results showing the application is very suitable for use. This application provides account verification features, MSME profiles, MSME news updates, and online seminars. The feasibility assessment shows very good results from media experts being 89.5%, content experts being 85.5%, and practitioner experts being 89%, making this application a potential digital tool to support the digital transformation of MSMEs. In conclusion, this application is suitable for use to increase productivity and the competitiveness of MSMEs in the digital era.
Development of a Head Gesture-Controlled Robot Using an Accelerometer Sensor Ore-Ofe, Ajayi; Umar, Abubakar; Ibrahim, Ibrahim; Abiola, Ajikanle Abdulbasit; Olugbenga, Lawal Abdulwahab
Vokasi Unesa Bulletin of Engineering, Technology and Applied Science Vol. 1 No. 2 (2024)
Publisher : Universitas Negeri Surabaya or The State University of Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/vubeta.v1i2.35114

Abstract

In this research, a head gesture-controlled robot was designed and developed to assist individuals with disabilities in performing tasks by translating head movements into robot commands. Using an accelerometer sensor embedded in a headgear device, the system interprets specific gestures—such as forward nods for forward movement, backward nods for reversing, and lateral tilts for turning left or right—into corresponding robotic actions. The design involved constructing a mechanical framework for the robot, assembling the headgear, and integrating both with Arduino-based programming to ensure accurate and responsive movements. Testing was conducted in a controlled setting, where the robot consistently followed head gestures with a high degree of accuracy, showing rapid response times to user inputs. Quantitative results demonstrated the system’s reliability, with over 95% accuracy in gesture recognition and minimal latency. This innovative system underscores the potential of head gesture-controlled robotics in assistive technology, offering an affordable, user-friendly solution to enhance mobility and autonomy for individuals with limited physical capabilities
Telegram Application to Monitor and Control of Automatic Railway Crossing Prototype Using Automatic Transfer Switch Wusandi Janu Ramadhan; Amirullah, Amirullah; Asepta Surya Wardhana
Vokasi Unesa Bulletin of Engineering, Technology and Applied Science Vol. 1 No. 2 (2024)
Publisher : Universitas Negeri Surabaya or The State University of Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/vubeta.v1i2.35391

Abstract

A railroad crossing is a device that functions to close and open roads that limit or stop public traffic lanes so that vehicles stop temporarily and give priority to trains. Failure of a railroad crossing will have fatal consequences because it will cause accidents and cause fatalities, injuries, or other material losses. The accident occurred because there was no equipment or failure of officers when operating the railroad crossing. To overcome these obstacles, the railroad crossing was made automatically. This paper proposes a prototype control of an automatic railroad crossing using an automatic transfer switch (ATS) monitored by the Telegram application. The main power source of the railroad crossing prototype is a photovoltaic generator system consisting of solar modules, inverters, and batteries. ATS is proposed so that the system is able to automatically transfer the power supply from the solar power generator to PLN electricity if the battery voltage is not enough to drive the railroad crossing or vice versa. The results of the study show that the combination of a 50 Wp solar module and a VRLA battery (12V and 12Ah) is able to store and generate electricity to drive the railroad crossing. The INA219 sensor is able to measure the current, voltage, and power of the PV module and battery. Arduino Uno is able to process voltage and current sensor data, send and receive UART data (RX TX), and communicate with ESP8266. Data from ESP8266 can then be sent and monitored remotely by the Telegram application via Arduino-Uno. The results of DC current and DC voltage tests using the INA219 sensor between the Telegram application and Multimeter are able to produce errors below 5%. The Telegram application is also able to monitor the DC voltage and DC current of PV modules and batteries, as well as the DC adapter voltage and DC adapter current from PLN remotely, and the status of opening and closing the railway crossing gate based on the power supply selection by ATS.
Monitoring of Public Street Lighting Equipment Using Passive Infrared Receiver (PIR) Sensors and Node-red Ismail Faruqi , Muhammad; Herjuno, Dimas
Vokasi Unesa Bulletin of Engineering, Technology and Applied Science Vol. 1 No. 2 (2024)
Publisher : Universitas Negeri Surabaya or The State University of Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/vubeta.v1i2.35411

Abstract

The current public street lighting system (PJU) still uses manual panel control. With these problems to find out the condition of the lights from the public street lighting (PJU) is running well or not and to find out whether the lights are on or off. From this statement, the purpose of this study is to determine 1) the sensitivity distance of the PIR (Passive Infrared Receiver) sensor with Movement on a microcontroller-based PJU to save electrical energy. 2) comparison of Current When measured using an ampere clamp and Node-red. The method used is experimental, namely Referring to two sets of variables. The first set functions as a constant. The results of the study show that 1) Based on the test results, it was found that the PIR sensor works when the human object is at a distance of 1 to 8 meters and can be detected objects in bright or dark conditions. 2) Based on the test results, it was found that the PZEM-004T sensor When given a load, the greater the current load given to the device, the current value read on the Node-red.
Current and Voltage Monitoring in Wind Power Plants Using ESP8266 And Node-Red Arief , Rozihan; Maulana, Mohamad Irfan Faudi
Vokasi Unesa Bulletin of Engineering, Technology and Applied Science Vol. 1 No. 2 (2024)
Publisher : Universitas Negeri Surabaya or The State University of Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/vubeta.v1i2.35429

Abstract

Fossil energy which is the main energy producer can be converted by utilizing wind power as an alternative renewable energy. The tool used as a wind power converter is a wind turbine, where wind power is kinetic energy that is converted into mechanical energy which is used to produce alternative energy is electrical energy. The working principle of this generator comes from the kinetic energy of the wind that rotates the propeller or windmill, then this mechanical energy runs the generator to create electrical energy. The design is carried out to find out and understand about operating Wind Power Plant Monitoring using Node-Red-based ESP8266 which is integrated with a smartphone or PC as a monitor for the tool. The design of the Wind Power Plant voltage and current monitor uses the ESP8266 microcontroller and the programmer uses the Arduino IDE software which will be applied to Node Red to create a display on the smartphone or PC screen. This study aims to produce a wind turbine prototype using the Savonius wind turbine model and monitor the output of the wind power plant using the ESP8266 which is displayed using the Node-Red dashboard.
Portable Pico Hydro Power Plant for Power Station Charger Taufiqurrohman, Muhammad; Octaviani, Dita
Vokasi Unesa Bulletin of Engineering, Technology and Applied Science Vol. 1 No. 2 (2024)
Publisher : Universitas Negeri Surabaya or The State University of Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/vubeta.v1i2.35597

Abstract

The earth's energy reserves will be depleted due to the growing demand for energy, necessitating the adoption of renewable energy sources. The best way to replace it is to use the energy that flows through water to create electricity. Batteries can also be utilized to store electrical energy for later use. In this study, the batteries used to turn the water's energy into electricity are portable generators that can be carried anywhere. By needing a portable unit that is made from a turbine, generator, charger controller, auto buck bost converter, battery, and other supporting parts. It functions as a charger for computers, cellphones, and other electronic devices without a 12V battery that may change the voltage. Compare the variance in the water flow discharge and the power charger's charging time using the results that were obtained. River discharge 73.621 l/s charging time 42 hours, river discharge 73.621 l/s charging time 42 hours, pipe discharge 6.41 l/s charging time 84 hours, pipe discharge 8.064 l/s pipe charging time 38 hours, pipe discharge 9.868 l/s charging time 32 hours, and pipe discharge 14.42 l/s pipe 27 hours were the results. The battery charges more quickly the higher the discharge.
Internet of Educational Things (IoET): An Overview Thaariq, Zahid Zufar At
Vokasi Unesa Bulletin of Engineering, Technology and Applied Science Vol. 1 No. 2 (2024)
Publisher : Universitas Negeri Surabaya or The State University of Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/vubeta.v1i2.35886

Abstract

The internet has caused a paradigm shift in education towards digitalization, so that students who experience it are now referred to as digital natives. This technology has changed the orientation of learning and teaching from teacher-centered to student-centered. Specific discussion is needed regarding the use of the internet modified in such a way in learning. Internet of Educational Things (IoET) becomes an interesting discussion in this article to support the paradigm shift. This article discusses using a narrative review approach. This means that this preparation tends to be reflective and in accordance with the author's understanding. The discussion includes (1) the paradigm shift from conventional to internet-assisted digital, (2) IoET as a digital-based instructional system approach and (3) related findings. Future recommendations will be presented, especially regarding the use of IoET in the education system.
Factors Influencing Young Audience Preferences for Digital Platforms in Indonesia Mochammad Abdul Machfud; Arieviena Ayu Laksmi; Hong, Tangkin
Vokasi Unesa Bulletin of Engineering, Technology and Applied Science Vol. 1 No. 2 (2024)
Publisher : Universitas Negeri Surabaya or The State University of Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/vubeta.v1i2.35989

Abstract

The rapid development of digital technology and the widespread adoption of the internet have significantly transformed media consumption patterns, especially among young audiences in Indonesia. This study aims to explore the preferences and motivations of Indonesian youth (ages 15-30) in selecting digital platforms over traditional media, applying the Theory of Planned Behavior (TPB) as a framework. TPB posits that Attitude Toward Behavior, Subjective Norms, and Perceived Behavioral Control are key factors influencing behavioral intentions. Utilizing a quantitative, survey-based approach, the research examines the extent to which these factors impact young viewers' media preferences. Results reveal that Subjective Norms and Perceived Behavioral Control strongly influence digital media engagement, while Attitude Toward Behavior is less impactful. These findings highlight the importance of social influences and usability in shaping media preferences among young Indonesians. The insights gained could guide media providers in developing strategies that resonate with this demographic, adapting content and platform features to better meet the needs of an evolving digital audience

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