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All Journal BERKALA FISIKA JURNAL ILMIAH PENDIDIKAN FISIKA AL BIRUNI Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Nasional Pendidikan Teknik Informatika (JANAPATI) IJID (International Journal on Informatics for Development) Jurnal Fisika : Fisika Sains dan Aplikasinya Jurnal Abdi Insani Indonesian Journal of Electrical Engineering and Computer Science Jurnal Inovasi Pendidikan dan Sains Journal of Innovation in Educational and Cultural Research Jurnal Instrumentasi DEDIKASI: Community Service Reports Journal of Engineering and Applied Technology Jurnal Nasional Teknik Elektro dan Teknologi Informasi Jurnal Materi dan Pembelajaran Fisika Jurnal Pengabdian Masyarakat Bhinneka Jurnal Masyarakat Madani Indonesia Jurnal Pengabdian Masyarakat Bangsa Jurnal Rekayasa elektrika
Dewanto Harjunowibowo
Department Of Physics Education, Faculty Of Teacher Training And Education, Universitas Sebelas Maret, Surakarta 57126, Indonesia
Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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Optimization of Electrospinning Temperature Control System IoT-Based with DHT21 Widayani, Della Astri; Hikamiah, Luluk Arifatul; Nugroho, Panji Setyo; Ariyanto, Dewa Pascal; Amaratirta, Jasmine Cupid; Harjunowibowo, Dewanto; Rezeki, Yulianto Agung
Jurnal Rekayasa Elektrika Vol 20, No 4 (2024)
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17529/jre.v20i4.37537

Abstract

Electrospinning is a method of making nanomaterials that has a fairly easy and flexible process that can produce nanofiber continuously. Nanofiber morphology from the electrospinning process is influenced by several parameters, one of them is temperature as an environmental parameter. If there is no temperature control system in the electrospinning system, it will be difficult to maintain the consistency of the morphology nanofiber and at certain temperatures, nanofibers are not formed. Therefore, this study aims to develop a temperature control system for electrospinning called the Electrospinning Temperature Control (ETC) System and connect it with an internet-of- things (IoT) platform to understand the dynamics of the temperature control process, upload temperature data to the cloud, and remote monitoring. The method used by designing and building system hardware and software, calibrating DHT21 as a temperature sensor and testing system performance. The results show that the calibration of the DHT21 sensor has an accuracy rate of 94.95% and a precision rate of 98.93%, while the results of the performance test show that the system can raise, maintain, and lower the temperature. Further performance testing reveals that the ETC system can operate within a temperature range of 2040C. The IoT system using the Blynk App allows users to remote and monitor easily, and using Google Sheets as a cloud database. The ETC system was successfully built and can be applied to electrospinning experiments.
IoT-Based Humidity Control System for Electrospinning Hikamiah, Luluk Arifatul; Ariyanto, Dewa Pascal; Widayani, Della Astri; Nugroho, Panji Setyo; Amaratirta, Jasmine Cupid; Harjunowibowo, Dewanto; Rezeki, Yulianto Agung
Jurnal Nasional Pendidikan Teknik Informatika : JANAPATI Vol. 13 No. 2 (2024)
Publisher : Prodi Pendidikan Teknik Informatika Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/janapati.v13i2.75896

Abstract

In recent years, electrospinning has become the most common and most widely used nanofiber manufacturing method. One parameter affecting the manufacturing process is the humidity parameter, which affects the morphology. The control tools that have been developed have not been equipped with a remote control and monitoring system. This research aims to develop a humidity control system that can be controlled and monitored remotely and is equipped with data recapitulation. This research used methods from literature studies on humidity control systems, manufacture and assembly of hardware and software, calibration, and performance tests. A humidity control device is produced using a NodeMCU microcontroller connected to the IoT-based Blynk application. This can be controlled and monitored manually with an LCD and Keypad or by using a handphone through the Blynk application, and the humidity value can be recapitulated with Google Sheets in real-time. The sensor used for reading this humidity value is a DHT 22 sensor which has an accuracy value of 99.72% and a precision of 98.81% for 45%-95% humidity. This IoT-based humidity control system device can automate the process of controlling, monitoring, and recapitulating humidity data in real-time.
Pengembangan Syringe Pump Berbiaya Rendah sebagai Sistem Pendukung Pemintalan Listrik Dewa Pascal Ariyanto; Panji Setyo Nugroho; Della Astri Widayani; Luluk Arifatul Hikamiah; Jasmine Cupid Amaratirta; Dewanto Harjunowibowo; Yulianto Agung Rezeki
Jurnal Nasional Teknik Elektro dan Teknologi Informasi Vol 13 No 3: Agustus 2024
Publisher : Departemen Teknik Elektro dan Teknologi Informasi, Fakultas Teknik, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jnteti.v13i3.12415

Abstract

Electrospinning is one of the techniques used to fabricate nanofibers. The syringe pump is one of the main parts of electrospinning, responsible for injecting the solution into the chamber with high precision. The syringe pump has a simple operating system, but it has a high price on the market. Its high price has been one of the obstacles for research groups in the fabrication of nanofibers. Hence, this research aimed to solve the problem of expensive syringe pumps by developing a low-cost syringe pump using affordable components. This research utilized methods from a literature study of syringe pump design, including the manufacturing and assembly of both hardware and software components. It also involved testing the calibration, optimization, and performance of the syringe pumps. An analysis of each stage was carried out until a conclusion was obtained. This syringe pump built in this research used a NEMA 17 stepper motor and TB6600 motor driver to control the flow rate. The total cost to develop this low-cost syringe pump was IDR632,300. Test and calibration were measured at a flow rate ranging from 1 mL/h to 5 mL/h using distilled water, resulting in an accuracy value of 96.7% and a precision value of 95.0%. Further research should utilize gear wheels to reduce the load of the motor stepper so as to prevent prolonged heated conditions. The results of this research can also be used as insight for researchers to develop another low-cost tool in other research fields.
DESIGN AND BUILD THE SLIDING DRUM COLLECTOR WITH RPM COUNTER ARDUINO FOR NANOFIBER FABRICATION Nugroho, Panji Setyo; Ariyanto, Dewa Pascal; Widayani, Della Astri; Hikamiah, Luluk Arifatul; Amaratirta, Jasmine Cupid; Harjunowibowo, Dewanto; Rezeki, Yulianto Agung
Instrumentasi Vol 48, No 1 (2024)
Publisher : National Standardization Agency of Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31153/instrumentasi.v48i1.638

Abstract

The rotational speed of the drum collector is an important parameter to determine the morphology of the nanofiber. Currently, many researchers are modifying single nozzle into multi-nozzle to obtain a wide range of materials. However, it requires more powerful syringe-pumps or increasing their number, leading to escalated cost. In addressing this issue, the sliding drum collector with an RPM counter is proposed as a solution. This apparatus uses a DC motor 775 and a stepper motor Nema17 as the driving device and an IR-sensor as the RPM counter. The RPM counter on this apparatus has also been calibrated and obtained an accuracy value of 97.87% and a precision value of 96.45%. The performance of the sliding drum collector has been validated. The sliding drum collectors have been proven to produce wider material with an area of (389 ± 8) cm2, (66 ± 18) cm2 larger than an ordinary drum collector.
Enhancing Measuring Reliability: Calibration and Validation of IoT-based DC Power Logger Arifa, Aulia; Suharno, Suharno; Kamaruddin, Maqbul; Harjunowibowo, Dewanto
Journal of Engineering and Applied Technology Vol. 6 No. 01 (2025): (March)
Publisher : Faculty of Engineering, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jeatech.v6i01.83282

Abstract

A power logger is a device that has an electrical energy consumption monitoring function with an embedded data storage system to understand energy consumption patterns and improve the efficiency of energy usage. However, building meters without calibration causes inaccurate measurements and information. Therefore, the study reports a simple method to enhance any system's measurement quality via an Internet of Things (IoT)-based DC Power Logger case.  The IoT system built in the Blynk application enables the power logger to operate remotely and was integrated into a Google spreadsheet page to facilitate real-time data storage with an INA219 sensor as the measurement module. The calibration process of the power logger was conducted by comparing the measurement results obtained from the power logger with measurements obtained from a Sanwa multimeter. As a result, the calibration process ensures enhanced accuracy and precision of power logger measurements, which was validated by the validation process.
Students’ Creative Thinking Skills on Heat Phenomena Using POGIL Learning Model Pratiwi, Rinta Dian; Ashadi, Ashadi; Sukarmin, Sukarmin; Harjunowibowo, Dewanto
Jurnal Ilmiah Pendidikan Fisika Al-Biruni Vol 8 No 2 (2019): Jurnal Ilmiah pendidikan Fisika Al-Biruni
Publisher : Universitas Islam Negeri Raden Intan Lampung, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/jipfalbiruni.v8i2.4629

Abstract

This research aimed to analyze the improvement of students' creative thinking skills on the topic of heat and its transfer using the POGIL model. The matter concerning heat and its transfer has some characteristics that enable students to carry out practicum and trigger them to develop their higher-order thinking skills. The method used in this research was pre-experimental with one group pretest-posttest design. A total of 32 seventh grade students at SMPN 1 Jaten Karang Anyar, Central Java, were randomly selected as the participants in this research. To measure the increase in students' creative thinking skills, a multiple-choice test had been developed based on the indicators of creative thinking skills. Based on the results of data analysis, the values of N-gain on the indicators consisting of fluency, flexibility, originality, and elaboration were 0.56, 0.60, 0.46, and 0.53, respectively. Those numbers meant that creative thinking was in the medium category. Further analysis shows that, by using the POGIL model on the topic of heat and its transfer learning, students’ creative thinking skills can be increased, especially on the indicators of fluency and flexibility.
Guided inquiry lab: Its effect to improve student’s critical thinking on mechanics Febri, Ade; Sajidan, Sajidan; Sarwanto, Sarwanto; Harjunowibowo, Dewanto
Jurnal Ilmiah Pendidikan Fisika Al-Biruni Vol 9 No 1 (2020): Jurnal Ilmiah Pendidikan Fisika Al-Biruni
Publisher : Universitas Islam Negeri Raden Intan Lampung, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/jipfalbiruni.v9i1.4630

Abstract

Learning trends in the 21st-century require students to have the ability to sort appropriate information from certain sources. To do this, students must have critical thinking skills. One of the learning models that can facilitate students to think critically is a guided-inquiry lab. Thus, the purpose of this study was to quantitatively analyze the impact of the implementation of the guided-inquiry lab model on students' critical thinking skills on mechanics material. A pre-experimental method employing one group pretest-posttest only design was applied to obtain students' critical thinking skills data before and after the implementation of the guided-inquiry lab model. A total of 32 students from a junior high school in the city of Karanganyar, Central Java, were involved as the samples in this study. The data obtained were then analyzed using N-gain calculations. Based on the data analysis, there are 81.25% of students have medium creative thinking skills after being taught with a guided-inquiry lab, meaning there is an increase in the average score of students after being taught using a guided-inquiry lab model. It can be concluded that the implementation of the guided-inquiry lab model is effective to improve students' critical thinking skills
PENERAPAN GOOD MANAGEMENT PRACTICES PADA KELOMPOK TERNAK MENDHO BERKAH MAKMUR KABUPATEN SUKOHARJO UNTUK MENINGKATKAN PRODUKTIVITAS TERNAK KAMBING Yanti, Yuli; Pawestri, Wari; Harjunowibowo, Dewanto
Jurnal Abdi Insani Vol 12 No 2 (2025): Jurnal Abdi Insani
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/abdiinsani.v12i2.2352

Abstract

Peternakan kambing di Indonesia Sebagian besar masih dalam skala kecil dan dipelihara dengan teknologi yang sederhana. Peternak kecil belum menerapkan manajemen yang baik yang bisa meningkatkan produktivitas ternaknya. Manajemen ternak yang baik diantaranya adalah manajemen pakan, perkandangan dan Kesehatan. Kegiatan pemberdayaan kemitraan masyarakat (PKM) ini dilakukan dengan tujuan untuk mentransfer ilmu pengetahuan dan teknologi dalam bentuk Good Management Practices (GMP) pada peternakan kambing di kelompok ternak Mendho Berkah Makmur, Pengkol, Nguter, Kabupaten Sukoharjo. Metode yang digunakan yaitu CBR (Community Based Research). Mitra merupakan kelompok ternak dengan kepemilikan skala kecil yaitu kurang dari 5 ekor per peternak. Kegiatan diawali dengan observasi dan menganalisis masalah mitra. Kemudian maping untuk mencari solusi. Kegiatan Focus Group Discussion berupa penyampaian materi peternakan dan pelatihan. Kegiatan Pelatihan cara pembuatan silase dan FJLB telah dilaksanakan pada tanggal 16 September 2024. Sedangkan FGD bibit unggul dan perkandangan serta pengolahan pupuk telah dilaksanakan pada tanggal 29 September 2024. Silase yang dihasilkan dari kegiatan ini adalah warna hijau, aroma wangi masam silase, dan tidak ada jamur. Hasil dari pengamatan feses kambing mitra 100% ternak terinfeksi cacing sehingga diberikan obat cacing dan vitamin. Pupuk dari kohe kambing dan pupuk organik cair (POC) berhasil dengan baik. Terjadi peningkatan pengetahuan dan ktrampilan dari mitra setelah kegiatan PKM. Kesimpulan dari kegiatan ini adalah melalui kegiatan PKM Mitra mengalami peningkatan pengetahuan dan juga ketrampilan seletah mengikuti kegiatan pengabdian ini.
Penerapan Teknologi Greenhouse pada Petani Sirih Hitam di Wonosobo Harjunowibowo, Dewanto; Fitria Haryani, Fairusy; Rinanto, Yudi
Jurnal Pengabdian Masyarakat Bhinneka Vol. 1 No. 2 (2022): Bulan November
Publisher : Bhinneka Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (717.077 KB) | DOI: 10.58266/jpmb.v1i2.14

Abstract

Piper Betle var. Nigra merupakan tanaman endemik family Piperaceae di Indonesia. Tanaman ini memiliki kandungan senyawa untuk antimikroba. Kebutuhan daun sirih hitam sebagai bahan baku obat menjadi potensi yang ingin dimanfaatkan oleh para petani di Wonosobo. Namun demikian, pembudidayaan sirih hitam ini lebih sulit karena hanya ada di hutan. Oleh karenanya, kegiatan ini ditujukan untuk mengenalkan teknologi greenhouse dan sistem kontrol microclimate kepada para petani agar mendapatkan hasil panenan yang berkualitas. Melalui pelatihan stek dan teknologi greenhouse, petani mitra mampu melakukan stek dengan benar dengan tingkat keberhasilan yang tinggi.
Sosialisasi Dan Pelatihan Otomatisasi Berbasis Arduino Pada Murid Fase E Kelas X SMAN Tawangmangu Karanganyar Rahardjo, Dwi Teguh; Rezeki, Yulianto Agung; Suharno, Suharno; Rahmasari, Lita; Budiawanti, Sri; Jamaluddin, Anif; Harjunowibowo, Dewanto
Jurnal Pengabdian Masyarakat Bhinneka Vol. 4 No. 2 (2025): Bulan November
Publisher : Bhinneka Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58266/jpmb.v4i2.710

Abstract

Kegiatan pengabdian masyarakat ini bertujuan untuk memberikan sosialisasi tentang Arduino serta memberikan pelatihan dasar-dasar otomatisasi berbasis Arduino pada murid fase E kelas X SMAN Tawangmangu Karanganyar. Arduino merupakan platform elektronik berbasis open-source yang mencakup perangkat keras berupa papan mikrokontroler dan perangkat lunak Arduino IDE, sehingga memudahkan pembuatan prototipe elektronik bagi pemula. Tahapan pelaksanaan pengabdian masyarakat ini meliputi 1. Uji coba peralatan yang akan digunakan untuk pelatihan Arduino. 2. Koordinasi tim pelaksana pengabdian dengan pihak sekolah, satu minggu sebelum berangkat ke lokasi. 3. Pelaksanaan pengabdian di SMAN Tawangmangu. Untuk evaluasi pelaksanaan pengabdian masyarakat yang berupa sosialisasi dan pelatihan Arduino pada murid, digunakan instrumen angket 10 pertanyaan dengan skala Likert 5 poin. Hasil penilaian angket oleh 30 murid fase E kelas X SMAN Tawangmangu menggunakan katagori penilaian Azwar, S. (2012), menunjukkan bahwa 47% murid menyatakan minat yang tinggi dan 53% murid menyatakan minat yang sangat tinggi terhadap sosialisasi serta pelatihan dasar-dasar otomatisasi arduino. Hasil ini menunjukkan bahwa pelatihan otomasi berbasis Arduino diterima dengan baik oleh murid dan dapat menjadi alternatif inovatif dalam pembelajaran tentang teknologi otomatisasi berbasis Arduino.
Co-Authors Afifah Harwanti Agastya Surya Visinanda Aina Mardhiyah Alfiani, Athifah Novi Alvin Ichwannur Ridho Amanda Alya Kamilla Amaratirta, Jasmine Cupid Amaratirta, Jasmine Cupid Amri, Saehful Andini Desi Sawitri Anif Jamaluddin Ardiansyah, Farhan Ahmad Arifa, Aulia Aris Budianto, Aris Ariyanto, Dewa Pascal Ariyanto, Dewa Pascal Ashadi Azizah Nur Safitri Azizah, Salsabila Nur Brilian Swastika Cahyani, Riana Natifa Eka Carrollus Axellino Rettob Cucuk Wawan Budiyanto Danar Susilo Wijayanto Della Astri Widayani Desy Erma Putri, Desy Erma Devinta, Yuslana Dewa Pascal Ariyanto Dewanto Kamas Utomo Dewi Ratna Nurhayati Dewi Ratna Nurhayati Dharmawan, Muh Adhi Dwi Teguh Rahardjo Dyah Fitriana Masithoh Dyah P Efi Nikmatu Solikhah Elvin Yusliana E Fajar Prasetya Farah Yuki Prasetyawati Farid Ahmadi Farida Puput Lestari Farisa Ramadhani Rosyidi Febri, Ade Fita Listiana Fitria Haryani, Fairusy Frita Dwi Wijayanti Gibral, Nisa Khuriya Haq, Mufti Muammarul Hernawan, Aswin Nugrahandi Hikamiah, Luluk Arifatul Hikamiah, Luluk Arifatul Husnawati, Fina I Gusti Bagus Wiksuana Iin Nashihah Indah Widiastuti Istiqomah, Ainun Jasmine Cupid Amaratirta Joko Ariyanto July Trianita Widya Rahayu Kamaruddin, Maqbul Kenny Anindia Ratopo, Kenny Khadri, Tabah Muhamad Kuncoro Diharjo Kurniawati, Ridha Dwi Laeli Nurajijah Latifah N. Q Lestari, Dian Permata Lia Umi Khasanah Lina Wahyuningrum Lita Rahmasari Lita Rahmasari Luluk Arifatul Hikamiah M. Maulana Yusuf Nonoh Siti Aminah Nugroho, Lilik Andre Nugroho, Panji Setyo Nugroho, Panji Setyo Nurul Fitrianingrum Nyoman Meta Rosanti Panji Setyo Nugroho Pawestri, Wari Prasetya, Fajar Prasetyawati, Farah Yuki Pratiwi, Ratih Muliastry Pratiwi, Rinta Dian Pujayanto Pujayanto Puspita Septim Wulandari, Puspita Septim Putri, Eva Rahayu Riyana Indah Setiyani, Riyana Indah Rochmad Rochmad Rosihan Ari Yuana, Rosihan Ari Rosihan Ariyuana, Rosihan Sajidan Sarwanto Sarwanto Sarwanto Sarwanto Sarwanto Sarwanto Sawitri, Andini Desi Shinta Melani Permatasari Siti Supeni Siti Supeni Solikhah, Efi Nikmatu Sri Budiawanti Sri Budiawanti Sri Hartati Suharno Suharno Suharno Suharno Suharno Suharno Sukamto, Ika Sumiyarsi Sukarmin Supurwoko Sutadi Waskito Swastika, Brilian Syafiah, Revalina Zulfalhutfi Syamsuddin, Frendi Ihwan Thrustho Raharjo, Thrustho Tyas, Aster Cahyaning Ulwan, Rozin Fata Widayani, Della Astri Widayani, Della Astri Widha Sunarno Widiarti, Endang Retno Y. Radiyono Yesiana Arimurti Yudi Rinanto Yudi Rinanto Yuli Yanti Yulianto Agung Rezeki Yulianto Agung Rezeki Yunianto, Muchsin Budi