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ELINVO (Electronics, Informatics, and Vocational Education)

elinvo
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Published by Universitas Negeri Yogyakarta

ISSN : 25806424 EISSN : 24772399 DOI : 10.21831

Core Subject : Science, Education, Engineering,

Computer Science & IT Education Electrical & Electronics Engineering

ELINVO (Electronics, Informatics and Vocational Education) is a peer-reviewed journal that publishes high-quality scientific articles in Indonesian language or English in the form of research results (the main priority) and or review studies in the field of electronics and informatics both in terms of their technological and educational development.

Arjuna Subject : Teknik (semua kategori) - Teknik Listrik dan Elektro

Articles 247 Documents

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Sistem Pengendali pH Air dan Pemantauan Lingkungan Tanaman Hidroponik menggunakan Fuzzy Logic berbasis IoT Alam, Rahib Lentera; Nasuha, Aris
Elinvo (Electronics, Informatics, and Vocational Education) Vol. 5 No. 1 (2020): Mei 2020
Publisher : Department of Electronic and Informatic Engineering Education, Faculty of Engineering, UNY

Hidroponik merupakan solusi bercocok tanam untuk lahan pertanian yang semakin menyempit. Namun, pengendalian pH serta monitoring lingkungan yang masih manual membuat hasil tanam menjadi kurang optimal. Proyek akhir ini bertujuan untuk menciptakan perangkat keras dan perangkat lunak untuk mengontrol pH air dan memonitor lingkungan tanaman hidroponik berbasis Internet of things (IoT). Sistem tersebut menggunakan sistem kontrol logika fuzzy untuk mengendalikan pH media tanam hidroponik dan terdapat pengembangan cloud server guna mempermudah petani dalam mengontrol media tanam serta lingkungan tanaman hidroponik. Pembuatan alat ini mengacu pada metode kuantitatif yang terdiri dari tahap analisis, desain/perancangan, perakitan serta pengujian. Hasil dari pengujian yang telah dilakukan adalah ketelitian sensor pH meter sebesar 98,38%, ketelitian sensor DHT22 untuk mengukur suhu sebesar 97,91% dan kelembaban sebesar 95,89%, ketelitian sensor DS18B20 sebesar 96,16%, ketelitian sensor HCSR-04 sebesar 97,65%, Rata-rata waktu penstabilan pH 64s dengan error 2.05%. Semua fitur dalam aplikasi Blynk bekerja dengan baik, waktu ping server rata-rata 18ms dan waktu respons alat rata-rata 83s. Penggunaan sistem ini diharapkan bermanfaat bagi masyarakat awam untuk berkebun tanpa mencemaskan kebutuhan lahan luas dan kerumitan perawatan. Hal tersebut berdampak pada kemandirian pangan pada level rumah tangga dapat diwujudkan melalui penyediaan tanaman panggan untuk konsumsi keluarga.

Penggunaan Analytical Hierarchy Process (AHP) pada Penentuan Prioritas Supplier Food Chemical di PT. Garuda Hidrotive Internasional Hadiwijaya, Nehemia; Sundari, Jenie
Elinvo (Electronics, Informatics, and Vocational Education) Vol. 5 No. 2 (2020): November 2020
Publisher : Department of Electronic and Informatic Engineering Education, Faculty of Engineering, UNY

Abstract-Supplier selection is one of the important things in purchasing activities for companies. Supplier selection is a multi-criteria problem which includes quantitative and qualitative factors. One method that can be used for supplier selection is the AHP (Analytical Hierarchy Process) method. The problems that will be discussed in this study are: (1) how is the order of priority criteria and sub-criteria in the selection of suppliers at PT Garuda Hidrotive International? (2) which supplier / supplier should PT Garuda Hidrotive International choose based on the AHP method? The sampling technique uses judgment sampling because the AHP method requires dependence on a group of experts according to the types of specialists involved in decision making. Based on the results of the analysis, the advice that can be given is, if the company will develop a partnership with suppliers, the company is preferred to choose supplier X as a supplier food chemical for the company because supplier X is the best supplier that has the highest overall value. With this partnership, the supply chain performance between suppliers and companies will be better and can facilitate the overall production activities.

Improvement of Student Attendance System for Recording Student Surface Body Temperature Based on Internet of Things Mas Aly Afandi; I Ketut Agung Enriko; Muhammad Aulia Baihaqy
Elinvo (Electronics, Informatics, and Vocational Education) Vol 7, No 2 (2022): November 2022
Publisher : Department of Electronic and Informatic Engineering Education, Faculty of Engineering, UNY

Student attendance is a system used for tracking student activity in school. Many methods are used to develop student attendance systems, such as Quick Response (QR) Code systems, Radio Frequency Identification (RFID) systems, fingerprint systems, and so on. The COVID-19 pandemic has driven technological development, especially in the student attendance system. Measuring human surface body temperature has become a protocol that must be done before entering school. Student attendance systems need to expand the function not only for attendance but also for monitoring student surface body temperature. This research aims to improve student attendance systems by adding surface body temperature measurements and recording during student presence. Recording data can be done by using the internet of things. Student presence data will be sent to school databases throughout the internet. This system uses RFID technology for student presence and a non-contact thermal sensor for temperature measurement. According to data research, non-contact thermal sensors provide a temperature reading with an average error of 1.69%, a minimum error value of 0.96%, and a maximum error value of 2.57% with a range error value of 0.35°C – 0.95°C. RFID test shows that the optimum distance for the system to read an RFID card is 0 – 2cm. The System also successfully sent presence data to the student school database through the internet. This study concludes that developed systems can track student attendance by recording the student’s surface body temperature while in presence. Further work will be focused on managing data networks if this system is used with many users in the school.

Traversal Struktur Data Bipartite Graph dalam Graph Database menggunakan Depth-First Search Setialana, Pradana; Ardiansyah, Muhammad Nurwidya
Elinvo (Electronics, Informatics, and Vocational Education) Vol. 5 No. 2 (2020): November 2020
Publisher : Department of Electronic and Informatic Engineering Education, Faculty of Engineering, UNY

Bipartite graph merupakan satu bentuk graph yang dapat digunakan dalam membentuk sebuah strukur data yang saling berelasi namun memiliki karakteristik dengan dua jenis node yang berbeda seperti data hubungan keluarga atau data pohon keluarga. Dalam menyimpan struktur data bipartite graph ke sebuah database dapat digunakan graph database dengan konsep dimana node saling saling terhubung dengan node lainnya. Bipartite graph yang dikombinasikan dengan graph database menghasilkan solusi yang tepat dalam menyimpan data berelasi dengan dua jenis node yang berbeda. Namun dalam solusi tersebut menimbulkan permasalahan baru mengenai pencarian atau penelusuran (traversal) terhadap data yang terdapat dalam struktur data tersebut. Tujuan dari penelitian ini adalah mengembangkan algoritma yang dapat digunakan dalam penelusuran (traversal) data pada struktur bipartite graph dalam graph database. Algoritma yang dikembangkan adalah terapan dari algoritma depth-first search (DFS) yang telah dimodifikasi sehingga dapat digunakan dalam penelusuran (traversal) data pada bipartite graph dalam graph database. Hasil pengujian terhadap algoritma tersebut yang telah diimplementasikan ke dalam program terhadap data yang ada pada satu garis ikatan keluarga besar yaitu keluarga "George Washington /CASSIDY/" pada 30 kali percobaan dengan satuan waktu nanosecond yaitu 10-9 detik menunjukkan waktu maksimal yang didapat sebesar 42831 nanosecond, waktu minimal 5150 nanosecond, dan didapat rata-rata waktu penelusuran sebesar 9407,93 nanosecond.

Developing Mobile Career Learning Model for Electronics Engineering Vocational High School Nurdianah, Evi; Sudira, Putu
Elinvo (Electronics, Informatics, and Vocational Education) Vol. 7 No. 1 (2022): Mei 2022
Publisher : Department of Electronic and Informatic Engineering Education, Faculty of Engineering, UNY

The objective of this study is to develop a mobile career learning model for electronics engineering vocational high school and reveal the feasibility of the developed mobile career learning model to develop electronics engineering vocational student's competencies. This research utilized research and development method that refers to the Holistic 4D model, includes four stages of development: define, design, develop and deploy with three levels of holistic design and an interactive cycle, namely analysis, design, and evaluation. The define stage includes the performance analysis observations and instructional needs assessment. The design stage includes the design evaluation stage which involves expert with the background of lecturers, principals, teachers, career experts, software experts and successful alumni. The develop stage involves a review of material experts and media experts as well as a limited trial involving students and teachers of electronics engineering vocational high school. The data collection used observation sheets and questionnaires that have been validated by experts. The data analysis used the descriptive method. The results of the study are as follows. (1) The developed mobile career learning model integrates vocational learning activities and career guidance by utilizing information technology in the form of mobile career learning media applications. (2) The developed mobile career learning model is feasible and can be used for career development of students with electronics engineering competence.

Student Competency Association Analysis For Learning Evaluation Using Apriori Algorithm Evi Dewi Sri Mulyani; Yuda Purnama Putra; Egi Badar Sambani; Shinta Siti Sundari; Teuku Mufizar; Muhamad Satrio Nugraha
Elinvo (Electronics, Informatics, and Vocational Education) Vol 6, No 2 (2021): November 2021
Publisher : Department of Electronic and Informatic Engineering Education, Faculty of Engineering, UNY

Evaluation activities as a process in a learning program are one of the keys to improving the quality of education that will be accepted by students in learning. Therefore it is important for a teacher in how to understand the lack of learning given to students. Based on this, an analysis was carried out using the Association method with the Apriori Algorithm in finding relationships in the competency value data for each subject. In the Apriori method, it will produce a value that will determine the formation of the pattern. The data used is competency data based on student grades of English class 11 odd semester year class 2019 - 2020 SMK Ar - Rizqi Bina Insani with a total of 108 records with a maximum itemset of 3 itemset. The results of this association analysis produce a relationship between competencies that appear simultaneously, so that it can be used as an evaluation of learning for teachers as a learning improvement strategy for students based on the competence of each subject.

Development of Adaptive MOOCs to Support Personalized Learning: Mixed Method Analysis P. Priyanto; Ahmad Chafid Alwi; Siti Irene Astuti Dwiningrum; Amrih Setyo Raharjo; Akhsin Nurlayli
Elinvo (Electronics, Informatics, and Vocational Education) Vol 7, No 2 (2022): November 2022
Publisher : Department of Electronic and Informatic Engineering Education, Faculty of Engineering, UNY

This study aims to explain the development of adaptive MOOCs that support personalized learning. This study was designed with a mixed method design of sequential explanatory type at the association level. Quantitative analysis used confirmatory factor analysis (CFA) (n = 110) and was deepened with qualitative analysis of the Miles and Huberman model. Quantitatively measured domains include accessibility, learning curriculum, competence, motivation, satisfaction, efficacy, and self-study. The domain was used as a reference for qualitative data mining through focus group discussions (FGD) involving lecturers and doctoral students (n = 25). The analysis results show that the curriculum domain and one of the motivational indicators should be removed because it did not meet the requirements after bootstrapping. The second running algorithm showed all valid and reliable variables. Some domains that significantly affect MOOC user satisfaction are efficacy, competence, and motivation. R square results showed 37% influenced by motivation, accessibility, efficacy, and self-study, and the rest influenced by other variables. In the qualitative analysis, 19 subcodes were found that were included in the three main codes. In conclusion, there is new information in the accessibility domain that expands quantitative data, including information on MOOCs, marketing traps, regulation, and dropouts. Meanwhile, what strengthens and deepens quantitative data is found in the information on metacognitive and personalized coding that strengthens the domain of efficiency, the domain of competence, which is strengthened by content, mentoring collaboration, and motivation reinforced by coding the user's motivations and goals.

User Experience Design Practices in Industry (Case Study from Indonesian Information Technology Companies) Isnan Nugraha; Agung Fatwanto
Elinvo (Electronics, Informatics, and Vocational Education) Vol 6, No 1 (2021): Mei 2021
Publisher : Department of Electronic and Informatic Engineering Education, Faculty of Engineering, UNY

User Experience (UX) is a term that has received a lot of attention in the last decade. The number of industries whose consider the importance of implementing the UX design process within their development cycle has increased. Therefore, we think it is important to investigate how UX design processes are implemented in the industries. In this research, we take a qualitative approach with descriptive methods by investigating six information technology companies in Indonesia. As a result, we found that most of these information technology companies implement the UX design process as part of their operation and consider that the UX design process is an important part of software development. Each company has its order and priorities in regard to the UX design processes and only follows their established UX design process framework in order to meet their product development requirements. We also found that there are different UX design process approaches from these six companies.

Interactive Procedural Knowledge Learning Resources Development in The Context of Competency-Based Training Instructional Approach and Interactive Media Design Subjects for Information Technology Vocational High School Herlambang, Admaja Dwi; Budiman, Baiti; Wardhono, Wibisono Sukmo
Elinvo (Electronics, Informatics, and Vocational Education) Vol. 7 No. 1 (2022): Mei 2022
Publisher : Department of Electronic and Informatic Engineering Education, Faculty of Engineering, UNY

Many research has proven the good impact of digital learning resources on the knowledge acquisition by students. However, this research only focuses on factual and conceptual knowledge types. In contrast, the learning process in vocational high schools is dominated by procedural knowledge and practical activities. This research aims to produce a digital handbook appropriate in content, media, and utilization in the learning process of procedural knowledge at an information technology vocational high school. Digital handbook components were arranged based on the context of the Competency-Based Training (CBT) instructional approach and Interactive Media Design subjects. The digital handbook was developed under the Four-D model dan Cognitive Theory of Multimedia Learning. The content, media, and practicality appraisal were carried out to prove that the digital handbook is appropriate as a digital learning resource. The material, media, and practicality appraisal involves subject matter experts, multimedia learning experts, and potential users. The content validity average score is 97.80%, the media validity score is 95.50%, and the practicality score is 90.00%. Based on these, the digital handbook is declared practical and worth using as an interactive digital learning resource for procedural knowledge, potentially attracting students to hands-on or practical activities and guiding students to learn independently.

Development and Validation of a TPACK Instrument for Preservice Teachers in the Faculty of Engineering UNY Destiana, Bonita; Priyanto, Priyanto; Walipranoto, Ponco; Irfan, Rahmatul
Elinvo (Electronics, Informatics, and Vocational Education) Vol. 6 No. 2 (2021): November 2021
Publisher : Department of Electronic and Informatic Engineering Education, Faculty of Engineering, UNY

It is crucial to assess teachers' competency using TPACK. Therefore, the objective of this study was to develop a TPACK instrument for preservice teachers in the Faculty of Engineering, Universitas Negeri Yogyakarta. This study designed the TPACK instrument through 4 stages, namely: (1) literature study to determine the construct and statement items, (2) expert judgment to meet content validity, (3) revision and refinement of items from the review results, (4 ) validity and reliability testing. The research sample consisted of 200 preservice teachers. Validity and reliability testing used Confirmatory Factor Analysis (CFA) with a SmartPLS software program. The results suggested that the instrument met convergent validity with a loading factor value > 0.4, which ranged from 0.802 to 0.932, and discriminant validity, which indicated that the factor loading value for each observed variable with each latent variable was higher than the factor loading value with other latent variables. Composite Reliability values ranged from 0.908 to 0.954, and Cronbach Alpha ranged from 0.867 to 0.936, indicating that the instrument was reliable. Thus this instrument was considered effective in measuring the TPACK of preservice teachers preparing to be productive teachers in vocational high schools.

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