Jurnal E-Komtek (Elektro-Komputer-Teknik)

Forecasting Air Temperature Using the Triple Exponential Smoothing Method

Heri Susanto, Dimara Kusuma Hakim (Author) — Fri, 21 Jun 2024 13:53:32 +0700

Changes in air temperature are a major challenge in Indonesian agriculture. Erratic air temperatures hurt plant growth, so farmers must adjust planting schedules and plant selection according to the air temperature at a certain period. The author aims to predict minimum and maximum air temperatures in Temanggung district in 2024 using the Triple Exponential Smoothing (TES) method. Monthly air temperature data in Temanggung district for the period 2020 to 2023 is used for air temperature forecasting using the TES method. The analysis results show that the TES model can predict air temperature with fairly good accuracy. The minimum temperature is expected to be 23°C, maximum 26-27°C. The research results provide benefits for the agricultural sector in Temanggung. Farmers can use the results of air temperature predictions to adjust planting schedules based on crops that suit the air temperature to minimize the negative impact of air temperature on plant growth and agricultural yields.

Passive Infrared (PIR) Sensor Based on Arduino in Rice Pest Repellent Device Based on Classic Life Cycle Method

Nurkhalik Wahdanial Asbara, Vera Alviani (Author) — Fri, 21 Jun 2024 15:22:30 +0700

The research aims to design a system to repel rice pests in rice fields by moving the scarecrow using a servo motor while sounding the speaker according to the infrared signal detection from the PIR sensor. The research method used is the waterfall method, and the research implementation time is approximately three months, starting from the proposal seminar. The rice pest repellent test was carried out by testing the reading of the infrared signal received by the PIR sensor, then moving the servo and turning on the speaker to repel bird pests in the rice fields

Forecasting Rainfall in Planting Onion Crops in Brebes District, Brebes District Using Holt-Winters Exponential Smoothing

Nufus Mar'Atu Sholikhah Wasirudin, Dimara Kusuma Hakim (Author) — Mon, 24 Jun 2024 08:54:49 +0700

Planting shallots is very dependent on rainfall. High rainfall when planting shallots can result in shallot plants not growing well, resulting in reduced selling value at harvest time and low rainfall. Therefore, this study aims to determine the rainfall forecasting process for planting shallot plants in Brebes District, Brebes Regency. The data used in rainfall forecasting is monthly data in Brebes District from January 2019 to December 2023 using the Holt-Winters Exponential Smoothing method. Data sourced from NASA's Power Data Access Viewer. In the surface data, get the MAPE value0.05241. Earth Skin Temperature data gets a MAPE value of 2.34346. Wind Speed data gets a MAPE value of 14.5396. DataPrecipitationgot a value of 138.829583. These findings contribute to further understanding regarding rainfall forecasting in shallot planting, which can support the planting process so that the harvest is good and produces high selling value.

The Implementation of Virtual Reality (VR) of Laboratories for Campus Marketing and Promotion

Mon, 24 Jun 2024 09:42:41 +0700

ITPLN's promotional target range extends to the entirety of Indonesia. At present, campus admissions only focus on 35 out of the 38 provinces, with a limited number of students from the remote and outlying areas. Several promotional techniques have been implemented, yielding satisfactory results; however, there is room for improvement. To enhance its efforts, ITPLN utilizes VR technology to showcase campus facilities through virtual media. The Virtual Reality laboratory at ITPLN offers virtual tours that introduce various laboratories in all faculties. These tours serve two important purposes: supporting lectures in the laboratory and promoting the campus. The integration of laboratory introductions as a promotional tool is deemed appropriate for several reasons, including wider coverage, more comprehensive information, and an immersive and interactive experience. Consequently, prospective ITPLN students no longer need to physically visit the campus to gain a comprehensive understanding of the laboratory and campus in general. The development of VR facilities followed the Multimedia Development Life Cycle (MDLC) method, and thorough testing was conducted to refine the existing VR resources. The outcome of this process is nine laboratory tours that highlight VR-based practical and research facilities, which can further enhance web-based learning and campus promotion.

Making an Arduino Uno R3 Trainer as A Learning Support Tool in The Electronics Study Program

Mon, 24 Jun 2024 10:12:08 +0700

Microcontroller technology is increasingly developing, so studying it requires a real device. The learning process for microcontroller practice at the Piksi Ganesha Indonesia Polytechnic Campus does not yet have sufficient tools, especially for Arduino Uno practice. The research aims to create a tool or trainer about Arduino Uno so that it can be used to support microcontroller learning in the Electronics Engineering Study Program. The research method uses Research & Development with stages including potential and problems, information gathering, product design, design validation, design improvement, product testing, and product revision. The research results are an Arduino Uno trainer with three inputs and three outputs. It is hoped that users can more easily understand the basics of microcontrollers with the media created.

Website Based Cibendung Village Information System Design

Evan Triyadi, Sigit Sugiyanto (Author) — Mon, 24 Jun 2024 10:37:08 +0700

The design of the Cibendung Village information system aims to manage, access and record Cibendung Village so that information about Cibendung Village so that the information presented is important, up-to-date, interesting information and has become a lot of public attention to be more open. Therefore, the Cibendung Village Website has information features about media and communication about Cibendung Village. This feature is to get a lot of information to people who are more open than other social media such as Facebook, Twitter, Instagram and others and easy access to the website. Therefore, a web-based Cibendung Village Website was created using the waterfall method. This waterfall model provides sequential software starting from data analysis, design, coding, and testing implementation. After going through these stages, A Website-based Cibendung Village website was created to retrieve data, manage the website and access the website online to facilitate website access and get related information about Cibendung Village.

Application of Villamil-Molina in Virtual Reality Environmental Information on The ITPLN Campus

Mon, 24 Jun 2024 11:12:15 +0700

This study aims to apply Virtual Reality (VR) as an information medium in the ITPLN campus environment, focusing on the Villamil-Molina analysis method. The 3DVista app will be used as a VR content development platform. The research will evaluate accessibility, educational effectiveness, user acceptance, content availability, financial aspects, security, privacy, and environmental impact. The study results are expected to provide an in-depth understanding of the potential of VR, identify obstacles, and present recommendations to improve its implementation in the ITPLN campus environment by utilizing 3DVista applications. Villamil-Molina follows structured steps, uses the right creativity, and provides a satisfying experience for users.

Comparison of Double and Triple Exponential Smoothing Methods for Rainfall Prediction

Muhammad Wisnu Adji, Dimara Kusuma Hakim (Author) — Mon, 24 Jun 2024 00:00:00 +0700

Rainfall is water that falls to the ground surface over a certain period and is measured in millimeters (mm). Rainfall is essential for the life of living things. Forecasting plays a significant role in decision-making in modern times, with two main methods: causal models and time series. Time series models have five types of data patterns: random, constant, seasonal, cyclical, and trend. For rainfall forecasting, the Double Exponential Smoothing and Triple Exponential Smoothing methods are used for trend pattern data. This research compares the two approaches based on error values using average rainfall data in Bojonegoro. The results show that Double Exponential Smoothing has a Mean Absolute Percentage Error (MAPE) of 0.6996%, while Triple Exponential Smoothing has a MAPE of 119.1497%. So, Double Exponential Smoothing is more accurate.

Implementation of QR Payment on Android-Based Waste Banks

Abdul Aziz, Sabana Nur Rizki Hermawan (Author) — Mon, 24 Jun 2024 00:00:00 +0700

This research aims to implement a QR Payment system as an effort to increase attractiveness and encourage greater community participation in waste management at KSM BIMA, facilitating transactions, particularly the exchange of customer points for goods. The analytical method employed in this research is Design Thinking. The results demonstrate the successful implementation of the QR Payment system in the Android application of KSM BIMA waste bank. The prototype creation involved three stages: the first stage for developing an Android application prototype for customers and administrators, the second stage for QR Payment system development and creating Android applications for partners, and the final stage for adding several program features to the QR Payment system, setting an age limit for point redemption and generating reports for each application. Testing using the Black Box Testing method indicates that the implemented system functions effectively.

Optimization of Recruitment of Prospective Financial Managers Through a Decision Support System with the Multi Attribute Utility Theory Method

Mon, 24 Jun 2024 00:00:00 +0700

This study evaluates the application of Multi Attribute Utility Theory (MAUT)-based decision support systems in the recruitment process of financial managers in technology companies "TechInnovate". This study aims to identify the extent to which the use of MAUT can increase objectivity and effectiveness in candidate selection. The quantitative method was used by collecting data from 50 candidates who volunteered for this position. The assessment criteria that have been determined include Education and Qualifications, Work Experience, Analytical and Financial Skills, Communication Skills, Leadership and Team Management, Ethics and Integrity, Technology Capabilities, Adaptability and Innovation, Decision Making Ability. Data is collected through scores assigned to each criterion for each candidate, which are then aggregated taking into account the relative weights of each criterion. Statistical analysis is applied to evaluate the distribution of scores and the effectiveness of the system in selecting the most suitable candidates. Results from this study show that the application of MAUT is significant in improving objectivity in recruitment decision making, with high scores strongly correlated with expected job performance in in-depth interviews and follow-up evaluations. This study proves that integrating a systematic approach in recruitment not only strengthens the selection process but also promotes data-driven and objective decisions. The implications of this research are relevant for companies operating in dynamic and technology-centric environments, suggesting the integration of MAUT-based decision support systems as an effective strategy in the recruitment process.

Implementation of the Laravel Framework in Designing the BUMDESMA Kompak Sejahtera Lkd Website using the Prototype Method

Tue, 25 Jun 2024 00:00:00 +0700

BUMDESMA as a village-owned business entity needs a website for a wider information dissemination process. Not only as a means of sharing information quickly, accurately and easily, websites are also used to maintain the credibility and existence of a company in developing its business. BUMDESMA Kompak Sejahtera Lkd is one of the BUMDESMA that does not yet have a website for disseminating information or means for conducting business transactions. So far, information dissemination has only been limited to distributing printed brochures offline. To increase the dissemination of information on the existence and existence of BUMDESMA Kompak Sejahtera Lkd, in this research a BUMDESMA website was designed using the prototype method. To get an effective and efficient website design, the Laravel framework was chosen as the solution. After designing the BUMDESMA website, it is hoped that information about BUMDESMA Kompak Sejahtera Lkd will become wider so that it can help increase business activities at BUMDESMA.

Design and Build a Chili Sorting Tool Using Color Sensor Based on Arduino Uno

Linda Noviasari, Asni Tafrikhatin, Khairul Al Bahsyar (Author) — Wed, 26 Jun 2024 00:00:00 +0700

The initial phase of farmers cannot quickly regulate the selection of the quality of produced chili peppers due to limitations in manpower and time. This can lead to inaccuracies in chili selection, resulting in not all marketed chilies being in good condition. The color quality of chili peppers is one of the characteristics that can be observed. Some important factors that also concern chili farmers include the level of chili ripeness, adverse effects on consumers, and a decrease in farmers' or traders' turnover. Based on these problems, researchers developed a design for a chili ripeness sorting tool with a color sensor to sort chili color quality. This research model utilizes Research & Development, with the following stages: potential and problems, information collection, product design planning, product development, product testing, and product revision. The chili ripeness sorting tool based on Arduino Uno utilizes the TCS 3200 color sensor as a device to capture chili color data and a servo motor as an actuator. Based on product testing, the success rate of color readings is 93.33%. This product is expected to assist chili farmers in sorting and determining the quality of chilies to be sold to consumers.

Web-Based Patrol Scheduling System in Tinggarjaya Village RT 03 RW 03 Jatilawang District, Banyumas Regency

Andri Mugi Nugroho Nugroho, Sigit Sugiyanto, Supriyono (Author) — Wed, 26 Jun 2024 00:00:00 +0700

RT 03/03 Tinggarjaya Village, Jatilawang District is one of the RTs in Tinggarjaya Village, Jatilawang District, Banyumas Regency. On RT 03/03, Ronda is held every night. So far, the system for writing patrol schedules and recapping Jimpitan data still uses manual or written by hand and does not use automatic computer storage. No website is still used to record resident data, Jimpitan data, and patrol schedules. This causes less efficiency in making data reports in these activities. This practical work aims to create a simple website that can make creating reports on citizen data, Jimpitan data, and patrol schedules easier. The Patrol Scheduling System was created using the Waterfall model. The application is a tool for creating citizen data reports, traffic jam data, and patrol schedules.

Android Phishing Analysis with the Reverse Engineering Method Using MT Manager

Ika Mei Lina, Gilang Ryan Fernandes (Author) — Wed, 26 Jun 2024 00:00:00 +0700

People spend a lot of time with gadgets every day, and it cannot be denied that gadgets can facilitate people's activities in various fields. However, even though gadgets are very helpful, there are digital crimes that we must be aware of. One case that has received a lot of attention is the method of providing online invitations and package delivery receipts in the form of malware spread via the WhatsApp chat application. This has caused many losses, such as losing money in banking and also confidential data being accessed by criminals. The aim of this research is so that the public can anticipate this crime. Researchers use the Reverse Engineering method to find out the process, patterns, design, and how a program works in detail. The results obtained from this research are that there are many hacker attacks in the form of malware applications. This malware application will run when the victim downloads, installs, and grants access permission to the application. So people should always be alert and careful when using gadgets in everyday life.

Design and Development of Marketing Media Website at UD. Pasindo Pustaka Mandiri Using Design Thinking Method

Farras Zahy Fitrian Pramudya, Pradana Ananda Raharja (Author) — Wed, 26 Jun 2024 00:00:00 +0700

Changes in consumer behavior have become a major challenge for companies in managing marketing strategies. The readiness of infrastructure and willingness to innovate have made UD. Pasindo Pustaka Mandiri require new marketing media to reach a wider sales market and adapt to current technological developments, particularly through a website. This research aims to design and build a website for UD. Pasindo Pustaka Mandiri using the Laravel framework and the design thinking methodology. The design thinking process involves five stages: Empathize, Define, Ideate, Prototype, and Test. This method was chosen because it allows researchers to deeply understand user needs. The system development using the design thinking method resulted in a marketing website. System testing applied blackbox testing with descriptive analysis, yielding a feasibility score of 97.22%, interpreted as 'very feasible.' The System Usability Scale testing produced an average score of 74.29, falling within the Acceptability Ranges with the category 'Acceptable.' According to the grade scale, the system received a 'C' category, and in terms of adjective rating, it was rated as 'Good.' Overall, it can be concluded that the resulting website is highly feasible and acceptable to the public

Implementation of Convolutional Neural Network Algorithm for Detecting Empty Parking Area Based on Raspberry Pi

Suhartono, Satria Gunawan Zain, Ayu Futri Sadaruddin (Author) — Thu, 27 Jun 2024 17:03:39 +0700

This study aims to implement a convolution neural network algorithm to detect empty parking areas based on Raspberry Pi 4 and use the Convolutional Neural Network (CNN) method of the YOLO V5 model. This research consists of several stages, starting from the potential and problem stages, needs analysis, literacy studies, building prototypes, system design, and system testing. The datasets collected were taken using smartphone cameras and webcams with a total of 645 image datasets which were divided into two categories, namely training data and validation. System testing is carried out in two conditions, namely during the day and at night. The results of the detection test for observing variations in the position of filled and unfilled vehicles obtained the highest average accuracy during daytime conditions, while for observing cars entering and leaving the parking lot during day and night conditions, the results were the same percentage of success.

Effect of Extrusion Temperature Variations for Manufacturing 3D Printer Filament Based on Used Bottle Waste on Impact Strength

Herru Santosa Budiono (Author); Sigit Joko Purnomo — Fri, 28 Jun 2024 09:56:24 +0700

Manufacturing 3d printer filaments based on used plastic bottle waste is a promising solution in reducing environmental impact while utilizing excessive available resources. This research aims to evaluate the effect of variations in manufacturing temperature (210°C, 220°C, and 230°C) on the impact strength of 3D printer filament based on used bottle waste. The experimental method was carried out by printing filament samples at each printing temperature and testing the impact strength using the Charpy method. The research results show that printing temperature affects the impact strength of the filament, with a temperature of 230°C providing optimal results.

Prototype of an Arduino-Based 3D Scanner Printed Using 3D Printing

Fri, 28 Jun 2024 10:38:17 +0700

Three-dimensional (3D) scanning technology is pivotal in manufacturing, product design, and architecture, enabling precise digital reconstructions of real-world objects. However, existing 3D scanners are often costly and complex, hindering accessibility. To address this, our study presents a cost-effective 3D scanning system using Arduino technology. Utilizing an Arduino Nano, GP2Y0A21YK0F IR Sensor, stepper motors, motor drivers, and an SD card module, our system offers a simple solution for scanning small objects and creating 3D models. The scanner measures object distance, rotates a work table, and captures scan data, processed with MeshLab software. Successful scanning demonstrates affordability and automation. Future work will focus on optimizing accuracy and scanning speed.

Analysis of Differences in Coper, Platinum and Iridium Spark Plugs on Fuel Consumption

Fri, 28 Jun 2024 10:46:49 +0700

The research aims to determine the effect of different spark plug variations on fuel consumption. The method used is a descriptive method. The tools and materials used are: copper spark plugs, platinum spark plugs, iridium spark plugs, 5 liter measuring cup, and pertalite. Fuel consumption analysis compared copper, platinum and iridium spark plugs with rpm 700, 1000, 1500, and 2000. Test results: 1) Fuel consumption for copper spark plugs with rpm 700, 1000, 1500, and 2000, namely 40ml, 10ml, 15ml and 10ml. 2) Fuel consumption for platinum spark plugs with rpm 700, 1000, 1500 and 2000, namely 20ml, 5ml, 25ml and 20ml. 3) Fuel consumption for iridium spark plugs with rpm 700, 1000, 1500 and 2000 is 50ml, 10ml, 10ml and 10ml. So platinum spark plugs are more fuel efficient than copper and iridium spark plugs.

Design Analysis of a Manhole Mining Ambulance with a Hilux 4×4 WD Single-Cabin Chassis Unsing Finite Element Analysis (FEA)

Rezananda Gunawan, Fuad Hilmy, Ikhwan Taufik (Author) — Fri, 28 Jun 2024 11:34:59 +0700

This study aims to determine the strength and durability of ambulance manhole structures intended for emergency situations in mining areas. The research includes a literature review, direct calculation of manhole dimensions, design development, material selection, and loading simulation using SolidWorks 2021 software. The evaluated parameters are von Mises stress, deformation, and safety factor. Three variations of manhole designs and three types of materials—ASTM A500, Galvanized Steel, and JIS G34445 STKM 13B—are considered. Simulation results are presented in tabular form. The optimal design and material identified is Design 2, which exhibits von Mises stress of 3.759 MPa, deformation of 1.749 mm, and a safety factor of 8.1.

Design and Build Special Service Tools for Remove & Install Drive Shaft for Komatsu HD785-7 Dump Truck

Reza Febriano Armas (Author); Ari Aryadi; Rasma, Nugroho Putra Pratama (Author) — Wed, 10 Jul 2024 11:45:38 +0700

One of the repair works on the Power Train Havy Dum Truck (HD 787-5) unit is general overhaul work, which includes replacing components or overhauling the final drive assembly unit. The solution to the uninstallation and installation work is to replace the final drive. The disassembly and assembly work process has a level of difficulty, so technicians need precision and accuracy in assembling the drive shaft on the final drive so that the time for this work process requires a long lead time. components) and has potential K3 hazards for technicians (manpower). The difficulty of inserting the drive shaft into the differential gear and rotating the ring gear in the final drive is a problem due to the long processing time. The innovation carried out is how to position the drift shaft parallel to the position of the differential gear, thus requiring a special tool to leverage and at the same time to rotate the drive shaft so that it can change the position of the position, with this leverage and position change effort it can speed up the removal and installation process and working time technicians are more effective and efficient in terms of labor costs on general overhaul work.

4G Network Development as OpenBTS Using Open5GS with Universal Software Radio Peripheral (USRP) B210 Device

Meilisya Eka Saputri, Sopian Soim, Aryanti Aryanti (Author) — Sat, 27 Jul 2024 17:04:33 +0700

There are a small number of villages across Indonesia that have access to telecommunications. Operators find it less profitable to build conventional telecommunications infrastructure in rural areas. 4G networks need to be developed in various ways, but the development has not yet achieved the quality of service that people need. This article evaluates the performance of developing an OpenBTS4G Network using 5GS with the Universal Software Radio Peripheral (USRP) B210 device to make the network an economical communication solution for villagers. The system can be mobilized and set up whenever the cellular infrastructure is reactivated. After our configuration, the 4G network was detected on several cellular phones, but the transmitted network only covers 5m area, because the power used has not been able to cover a wider area. The development of this network is a solution in building a Network so that it will help people who live in blankspot areas. This research also aims to show that the Universal Software Radio Peripheral (USRP) B210 can be used to provide and 4G Network.

Development of Android-Based Electronic Fuel Injection (EFI) System Learning Media

Sidiq Supriyanto (Author); Didik Rohmantoro — Tue, 17 Sep 2024 14:56:23 +0700

This study aims to: (1) Develop Android-based learning media for the Electronic Fuel Injection (EFI) system, (2) Determine the feasibility of this learning media, and (3) Assess students' responses to the learning media. This research uses the Borg and Gall model development method modified by Sugiyono with ten steps starting from problem identification to mass production. Data were collected using questionnaires and analyzed by descriptive quantitative methods. The results of the study show that this learning media is very feasible and useful based on evaluation scores from material experts, media experts, and student responses.