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All Journal Jurnal Pendidikan Fisika Undiksha Jurnal Sains dan Pendidikan Fisika Jurnal Penelitian Fisika dan Aplikasinya (JPFA) Jurnal Fisika Unand JURNAL PENGABDIAN KEPADA MASYARAKAT Jurnal Fisika FLUX JITEK (Jurnal Ilmiah Teknosains) Journal of Applied Geospatial Information Jurnal Penelitian Pendidikan IPA (JPPIPA) INDONESIAN JOURNAL OF APPLIED PHYSICS Educatio ORBITA: Jurnal Pendidikan dan Ilmu Fisika Jurnal Pendidikan Fisika dan Teknologi Jambura Physics Journal Eksakta : Berkala Ilmiah Bidang MIPA Jurnal Fisika : Fisika Sains dan Aplikasinya Kasuari: Physics Education Journal (KPEJ) Ideas: Jurnal Pendidikan, Sosial dan Budaya Physics Education Research Journal Optika : Jurnal Pendidikan Fisika Eduproxima : Jurnal Ilmiah Pendidikan IPA Jurnal Sibermas (Sinergi Pemberdayaan Masyarakat) Dewantara Journal of Technology Computational and Experimental Research in Materials and Renewable Energy (CERiMRE) Jurnal Ilmiah Wahana Pendidikan International Journal of Health, Economics, and Social Sciences (IJHESS) Jurnal Jendela Pendidikan JagoMIPA: Jurnal Pendidikan Matematika dan IPA BIOCHEPHY: Journal of Science Education Journal of Science and Science Education (JoSSEd) Jurnal Luminous: Riset Ilmiah Pendidikan Fisika Jurnal Pijar MIPA Jurnal Riset Rumpun Matematika dan Ilmu Pengetahuan Alam (JURRIMIPA) SWARNA Jurnal Masyarakat Mengabdi Nusantara Panthera : Jurnal Ilmiah Pendidikan Sains dan Terapan Nanggroe: Journal Of Scholarly Service Science and Education Journal Nanggroe: Journal of Scholarly Service Jurnal Pengabdian Rekayasa Sistem SWARNA: Jurnal Pengabdian Kepada Masyarakat Jurnal Riset dan Pengabdian Interdisipliner BULETIN FISIKA
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Real-Time and Accurate pH Sensor Based on Internet of Things (IoT) Robin Ikano; Dewa Gede Eka Setiawan; Muhammad Yunus; Meilan Demulawa; Irsan Rahman
Dewantara Journal of Technology Vol. 5 No. 1 (2024)
Publisher : Akademi Teknologi Industri Dewantara Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59563/djtech.v5i1.312

Abstract

One important parameter that needs to be considered in water quality is the acidity level (pH) in the water. This study aims to design and determine real-time and accurate pH sensor based on internet of thing (IoT). This system design uses an ESP32 microcontroller and The PH-4502C pH Meter Module sensor. The ESP32 can be connected to the IoT-based Blynk platform, allowing pH data to be monitored in real time via a smartphone. Testing of the IoT-based pH sensor was conducted to evaluate the system's real-time operation under varying distances. Meanwhile, the pH sensor's accuracy was determined by comparing its output with a digital pH meter using buffer solutions at different pH levels. The test results show that the time value required in each range is always constant, namely 1 s. This proves that IoT-based monitoring does not affect the range. Meanwhile, measurement of pH level was the average error value is 3.49%, and the sensor accuracy is 96.51%. These results indicate a low error rate, resulting in high accuracy. The sensor error value of 3.49% is lower than the specified error tolerance limit of <5%. This proves that the pH sensor, with an accuracy of 96.51%, is suitable and reliable for measuring pH in solutions.
Effect of Soil Moisture on Vibration Detection Using an ESP32-Based IoT System Kisman Akuba; Dewa Gede Eka Setiawan; Muhammad Yunus; Septiana Kurniasari; Icha Untari Meidji; Abd. Wahidin Nuayi
Panthera : Jurnal Ilmiah Pendidikan Sains dan Terapan Vol. 6 No. 1 (2026): January
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/panthera.v6i1.949

Abstract

Earthquakes are natural disasters that frequently occur due to inadequate soil structure and varying soil moisture conditions, which significantly influence ground vibration characteristics. This study aims to investigate the effect of soil moisture conditions, specifically dry and wet soil on vibration response. The system employs an SW-420 vibration sensor integrated with an ESP32 microcontroller for data acquisition and real-time monitoring. The experiment was conducted on a small-scale soil medium, with vibration data recorded at one-second intervals for a duration of 60 seconds. The measured vibration signals were transmitted and monitored in real time, then analyzed to determine which soil condition exhibits greater vibration damping characteristics. The results indicate that soil moisture has a significant effect on the vibration sensor response. The highest average ADC value was obtained in dry soil at 823.21, while wet soil produced a lower average ADC value of 533.16. The decrease in ADC values demonstrates increased vibration damping as soil water content increases. These findings confirm that higher soil moisture enhances energy absorption and reduces vibration transmission. Therefore, the IoT-based vibration detection system using the ESP32 and SW-420 sensor is capable of distinguishing soil vibration characteristics under different moisture conditions and shows strong potential for further development as an early warning system for landslide mitigation.
Design of Resistivity Meter Data Storage System Based on Arduino Mega 2560 Laboratory Scale Measurement Results Dewa Gede Eka Setiawan; Rizky Prayatman; Salmawaty Tansa
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 14, No 1 (2024): April
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijap.v14i1.64901

Abstract

A resistivity meter can find out resistivity depth of rock structure, sediment layer, or the depth of water surface. However, the resistivity meter that is often used requires manually recording of the measurement results before inputting them into the processing data software, and this creates many steps in the geoelectric survey. This is because acquiring a resistivity meter with a data storage system entails additional costs, due to its expensive price. Consequently, many of the resistivity meters currently found in laboratories or used in the field are not equipped with a data storage system. This research aims to design a resistivity meter with a data storage system for measurement results, based on Arduino Mega 2560, for laboratory scale. The used sensors were INA219 currents sensor and voltage sensor. In addition, the tests were carried out to determine the level of accuracy of each sensor and testing for data storage system of measurement result. This research employed Schlumberger configuration in the development of resistivity meter. This research has successfully developed a resistivity meter device with a current sensor accuracy level of 97.28% using the INA219 sensor, and a voltage sensor accuracy level of 97.44%. It is noteworthy that the accuracy level is high, and the device is capable of performing readings effectively. This research has successfully designed a resistivity meter which has a measurement data storage.
Multi-Sensor Based on Internet of Thing (IoT) in Determining the Accuracy of Sensors for Air Temperature, Air Humidity, and Light Intensity Muhammad Yunus; Susilo Yudoyono; Dewa Gede Eka Setiawan; Siti Fatimah; Asmiati Amir
EKSAKTA: Berkala Ilmiah Bidang MIPA Vol. 27 No. 02 (2026): Eksakta : Berkala Ilmiah Bidang MIPA (E-ISSN : 2549-7464)
Publisher : Faculty of Mathematics and Natural Sciences (FMIPA), Universitas Negeri Padang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/eksakta/vol27-iss02/661

Abstract

Multi-sensor technology based on the Internet of Things (IoT) is implemented in determining the accuracy of sensors for airtemperature, air humidity, and light intensity. The multi-sensor based on IoT consists of a DHT11 sensor to detect air temperature and humidity, and a BH1750 sensor to detect light intensity was implemented using the NodeMCU ESP8266 microcontroller, monitored via the IoT on the Blynk application on the smartphone. Data Sensor validation by comparing data from the Indonesian National Standards measuring instrument to determine the sensor accuracy. The results of testing the sensors for air temperature, air humidity, and light intensity produced average accuracies of 99.440%, 100%, and 99.874%, respectively. All sensor errors remain within the specified tolerance limit of <5%. The low error sensor results in a high accuracy value. These sensors are suitable for various monitoring needs, both in automation systems and environmental research.
Studi Geolistrik untuk Menentukan Ketebalan dan Komposisi Sedimen di Danau Limboto, Gorontalo Mamonto, Yusril Mahendra; Yunginger, Raghel; Mursalin, Mursalin; Zainuri, Ahmad; Meidji, Icha Untari; Setiawan, Dewa Gede Eka
(JITEK)Jurnal Ilmiah Teknosains Vol 11, No 2/Nov (2025): Jitek
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/jitek.v11i2/Nov.23754

Abstract

This study aims to identify the type and thickness of sediment in Lake Limboto using the Schlumberger configuration geoelectric method. This method was chosen because of its ability to detect resistivity variations that reflect the characteristics of subsurface sediments. The research procedure begins with an initial survey to determine strategic measurement locations, followed by electrode arrangement and resistivity measurements. Data obtained from the measurements were analyzed using geophysical analysis software to produce a resistivity distribution model. The results showed that there were variations in sediment types, including sand, clay, and alluvial soil, as well as varying sediment thicknesses in various locations. These findings are expected to provide useful information for water resource management and mitigation of shallowing problems in Lake Limboto.
Sound Learning Strategies for Phase F Students with Intellectual Disabilities in Special Needs Schools Audina Setyawaty D. Buta; Masri Kudrat Umar; Dewa Gede Eka Setiawan
International Journal of Health, Economics, and Social Sciences (IJHESS) (Special Issue) - International Journal of Health, Economics, and Social Sciences (IJHESS) July 2025
Publisher : Universitas Muhammadiyah Palu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56338/ijhess.v7i3.8315

Abstract

This study aimed to describe the implementation of physics learning on the sound topic for intellectually disabled students in phase F at Special Schools, and to find out how teachers adjusted strategies, interactions, and learning media based on students’ characteristics. This research used a qualitative approach with a descriptive method. Data were collected through observation, interviews, and documentation, with validation using method triangulation. The results showed that physics learning on the sound topic was conducted in three stages: preliminary, core, and closing activities. In the preliminary stage, the teacher greeted, prayed, and gave appreciation, but the learning objectives were not clearly stated. In the core activities, the teacher used the lecture method with textbooks as the main learning resource, while the use of concrete media or technology was minimal. The interaction between teachers and students tended to be one-way, and not all students were actively engaged.In the closing stage, the teacher asked students to independently summarize the material and assigned homework as an evaluation tool. The learning strategies were mostly verbal and had not fully involved multisensory media or individual approaches tailored to students’ needs.In conclusion, the teacher made efforts to adjust the learning strategies to the characteristics of intellectually disabled students in phase F. However, improvement was still needed, particularly in the use of varied learning media, fostering more active interactions, and applying more concrete and participatory learning approaches to enhance learning effectiveness.
The Influence of the Problem-Based Learning Model with a Differentiated Approach on Senior High School Students' Problem-Solving Ability in the Concept of Sound Waves Siti Fazria Tobuto; Dewa Gede Eka Setiawan; Lukman Samatowa
International Journal of Health, Economics, and Social Sciences (IJHESS) (Special Issue) - International Journal of Health, Economics, and Social Sciences (IJHESS) October 2
Publisher : Universitas Muhammadiyah Palu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56338/ijhess.v7i4.8883

Abstract

Problem-solving skills are important skills in physics learning. However, learning practices in schools are still dominated by conventional methods that are less able to accommodate differences in learning styles and student readiness levels. Therefore, the application of the Problem Based Learning (PBL) model with a differentiated approach is seen as effective in improving students' critical, creative, and analytical thinking skills, especially in sound wave materials. This study uses a quantitative method with a quasi-experiment design. The subject of the study was grade XI students of SMA Negeri 1 Kabila which consisted of one experimental class and two replication classes. The research instrument is in the form of pretest and posttest essay questions to measure problem-solving skills. Data analysis was carried out through Liliefors normality test, Alpha Cronbach reliability, paired sample t-test, and N-Gain calculation. The results of the study showed a significant increase in the average pretest and posttest scores in all classes. The normality test states that the data is normally distributed, while the reliability test confirms that the instrument is classified as reliable. The hypothesis test proved that H? was rejected, with an average N-Gain of more than 0.7 which meant a very high increase. Thus, the application of the differentiated PBL model has been proven to have a positive effect on problem-solving skills and encourage students to be more active, involved, motivated, and able to solve contextual problems according to learning styles.
Mereduksi Miskonsepsi Dalam Topik Gelombang Pada Siswa SMA Kelas XI Menggunakan Metode Pembelajaran Demonstrasi: Sebuah Analisis Dengan Model Rasch Wirnawati Luawo; Mohamad Jahja; Irsan Irsan; Mursalin Mursalin; Dewa Gede Eka Setiawan
Science and Education Journal (SICEDU) Vol 5 No 3 (2026): Science and Education Journal 2026
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/sicedu.v5i3.1297

Abstract

Miskonsepsi pada materi gelombang merupakan salah satu permasalahan dalam pembelajaran fisika karena konsep yang bersifat abstrak dapat menyulitkan peserta didik dalam menghubungkan fenomena dengan konsep ilmiah. Penelitian ini bertujuan menganalisis perubahan pemahaman konsep dan miskonsepsi siswa kelas XI pada materi gelombang setelah penerapan metode pembelajaran demonstrasi serta mengevaluasi karakteristik instrumen menggunakan Model Rasch. Penelitian menggunakan pendekatan kuantitatif dengan desain kuasi eksperimen Non-Equivalent Pretest–Posttest Replication Design. Subjek penelitian berjumlah 68 siswa kelas XI SMA Muhammadiyah Batudaa yang terbagi dalam dua kelas replikasi. Data dikumpulkan menggunakan Three-Tier Diagnostic Test dan dianalisis melalui kategori pemahaman konsep serta Model Rasch dengan bantuan perangkat lunak Ministeps. Hasil penelitian menunjukkan peningkatan pemahaman konsep pada kedua kelas. Pada kelas XI B, kategori paham konsep meningkat dari 21% menjadi 59%, sedangkan miskonsepsi menurun dari 8% menjadi 2%. Pada kelas XI C, pemahaman konsep meningkat dari 12% menjadi 71%, sementara miskonsepsi menurun dari 7% menjadi 5%. Kategori tidak paham konsep juga menurun pada kedua kelas. Analisis Rasch menunjukkan sebagian besar butir sesuai dengan model, meskipun beberapa butir memerlukan peninjauan lebih lanjut. Temuan ini menunjukkan bahwa pembelajaran demonstrasi berkontribusi positif terhadap peningkatan pemahaman konsep dan reduksi miskonsepsi pada materi gelombang.
Analysis of Landslide Potential Based on Magnetic Susceptibility of Rocks Using Geomagnetic Methods in Suka Damai Village, Bulango Utara Subdistrict, Bone Bolango Regency Raghel Yunginger; Febriyanti Yuliana Sandi; Dewa Gede Eka Setiawan; Maman Hermana Husen; M Zulkifli; Kamal Ardiyanto
Jurnal Penelitian Fisika dan Aplikasinya (JPFA) Vol. 14 No. 1 (2024)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpfa.v14n1.p49-66

Abstract

Landslides in Bone Bolango Regency have increasingly impacted the population, with data showing a rise in affected areas from 2020 to 2021. To mitigate these risks, mapping areas with potential landslides is crucial for providing early warnings, although such efforts remain incomplete. Therefore, this research aims to determine the potential for landslides in Bone Bolango Regency, especially in Suka Damai Village. The geophysical method used in this research is the geomagnetic method because it utilizes the magnetic properties of rocks below the surface and can interpret subsurface structures in areas with the potential for landslides. Based on the research results, it was identified that the research location is dominated by diorite and granodiorite igneous rocks, where diorite rocks dominate from the surface to a depth of 40 meters with a susceptibility contrast value of 3 – (2.5) SI. Meanwhile, granodiorite rocks are found at a 20 – 110 m depth with a susceptibility value of 1.5 – 3 SI. Based on 3D visualization, it was found that diorite rock acted as landslide material, and granodiorite rock acted as sliding rock. Besides that, material movement forms slopes caused by shear failure that occurs along one or more landslide planes. This research confirms that the research area is a potential landslide area with a level of stability in category D, which means it is less stable.
ANALISIS SEBARAN AIR LINDI MENGGUNAKAN GEOLISTRIK RESISTIVITAS WENNER-SCHLUMBERGER di TPA TALUMELITO Firman A. Buya; Dewa Gede Eka Setiawan; Muh. Fachrul Latief; Raghel Yunginger; Icha Untari Meidji
Jurnal Fisika : Fisika Sains dan Aplikasinya Vol 11 No 2 (2026): Jurnal Fisika : Fisika Sains dan Aplikasinya
Publisher : Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/fisa.v11i2.30804

Abstract

TPA Regional Talumelito merupakan fasilitas pengelolaan sampah yang menerima timbunan sampah dalam jumlah besar dan berpotensi menghasilkan air lindi yang dapat meresap ke bawah permukaan. Identifikasi zona rembesan air lindi diperlukan untuk mengetahui pola penyebaran dan arah migrasinya di sekitar TPA. Penelitian ini bertujuan menganalisis distribusi nilai resistivitas bawah permukaan untuk mengidentifikasi keberadaan, sebaran, dan arah rembesan air lindi di sekitar TPA Talumelito, Gorontalo. Penelitian menggunakan metode geolistrik resistivitas konfigurasi Wenner–Schlumberger pada dua lintasan pengukuran, yaitu Lintasan 1 dan Lintasan 2, dengan panjang masing-masing 100 m dan jarak antar-elektroda 5 m. Data hasil pengukuran diolah menggunakan Microsoft Excel dan perangkat lunak Res2DInv untuk menghasilkan penampang resistivitas dua dimensi. Hasil penelitian menunjukkan adanya variasi nilai resistivitas bawah permukaan pada kedua lintasan. Pada Lintasan 1 ditemukan zona resistivitas rendah sebesar 24,5–94,1 Ωm yang diduga berkaitan dengan rembesan air lindi, terutama pada bagian dekat area kolam lindi, dengan nilai RMS Error sebesar 25,2%. Pada Lintasan 2 ditemukan anomali resistivitas rendah pada beberapa bagian lintasan yang berada di antara Cell 3 dan Cell 4, dengan nilai RMS Error sebesar 15,8%. Hasil tersebut menunjukkan adanya indikasi rembesan air lindi yang dipengaruhi oleh kondisi bawah permukaan dan jalur aliran air.
Co-Authors A. Indra Wulan Sari Ramadani A. Indra Wulandari Ramadani AA Sudharmawan, AA Abd Rahman Abd Wahidin Nuayi Abdi Gunawan Djafar Abdul Haris Odja Abdulrahman Djou Ahmad Zainuri Ahmad, Sri Amelia Ahmadi, Haerul Amir, Asmiati Ananda Febryana Hasan Andi Indra Wulan Sari Ramadani Andi Iskandar Andi Patiewere Metaragakusuma Anggo, Nina Shaqina Anisa Fauzia Ardita Ardita Asi, Algianto Asmiati Amir Asri Arbie Audina Setyawaty D. Buta Aulia Fitrah Ramadhani Basri A Haseng Bokori, Nur A S Buhungo, Trisnawaty Junus Bunga Tang Citron S Payu Citron S. Payu Cucu Kusmayancu Damopolii, Relita Danial, Yulistia Anggraini Desi Kiswiranti Dewahastu Gaib Dewaputu, Nugraha Oktofelly Dewi Diana Paramata Dintje Pahrudin Dzakiya, Nurul Elfiana Elfiana, Elfiana Elvira Ariyanto Pakaya Febriyanti Yuliana Sandi Ferna Panto Suharto Mooduto Fikri Maulana Ntobuo Fira Lakoro Firman A. Buya Fitryane Lihawa Gafur, Nurfitri Abdul Gamar Abdullah Goma, Metalika Habibi, Moh Arif Alfan Haerul Ahmadi Haerul Ahmadi Harsano Jayadi Hasani, Sintia Nasir Hersiq Basri Hidayah, Radhitya Adzan Hidjrawaty Tantu I Komang Wijaya I Made Hermanto Icha Untari Meidji Icha Untari Meidji Ilato, Nursuciani Radja Indrawati Lasumbu Indriati Martha Patuti Irsan Irsan Irsan Irsan Irsan Irsan Rahman Isa, Putri Cahyani Iswanto A. Yunus Jahja, Mohamad Jahja, Muhamad Kamal Ardiyanto Karim, Rahmiaty Abd. Kartika Kasim Dihuma Kisman Akuba Kobandaha, Restiyanti Kurniasari, Septiana Lantapon, Nancy Noviana Larasati Sukmadewi Wibowo Latief, Fachrul Latief, Muh Fachrul Lipoeto, Moh. Ramdan Lukman Samatowa Lukman Samatowa M Zulkifli Mahmud, Surti A. Maman Hermana Husen Mamonto, Siti Nurhaliza Mamonto, Yusril Mahendra Masayuki Sakakibara Masra Latjompoh Masri Kuadrat Umar Masri Kudrat Umar Masrid Pikoli Meidji, Icha Untari Meilan Demulawa Merpati Teodoris Nalle Mikail Gabriel Khan Khan Mobiliu, Fajar Putra Moh Arif Alfan Habibi Moh. Ramdan Lipoeto Mohamad, Wahyu Muzizat Mohammad Yusuf Muammad Irfan Dunggio Muh. Fachrul Latief Muh. Fachrul Latief Muhammad Agsti Buana Aditya Muhammad Fachrul Latief Muhammad Faizal Zakaria Muhammad Jahja Muhammad Yunus Muhammad Yunus Muhammad Yusuf Muksin, Engelina Mursalin Mursalin . Nina Shaqina Anggo Nismawati A Haruna Nova Elysia Ntobuo Nover Tiara Jelita Ntobuo, Nova E. Nur Rahma Kuengo Nurfadillah Abdullah Nurhidayah Nurhidayah Oktavia, Nurlaila Puput Salsabina F. Satri Rabiyanti B. Kamali Raflin Hamzah Taib Raghel Yunginger Raghel Yunginger Raghel Yunginger Yunginger Rahim, Niarti Ramadani, A. Indra Wulan Sari Rifai, Rusni R Ritin Uloli Rizky Prayatman Robertus Belardo Laksmana Robin Ikano Rum, Junita Angraini Styaning Salmawaty Tansa Samatowa, Lukman Sarni Ngadi Sintia Nasir Hasani Siti Fatimah Siti Fatimah Siti Fazria Tobuto Sri Alda Rabiasa Sri Nuryatin Hamzah Sri Yanti N Ismail Stenly Tampi Subhan Arif Supartin Supartin Supartin Supartin, Supartin Supu, Idawati Supu, Idawaty Susilo Yudoyono Suwaldi Mopangga Syahdad Aziz Syaripudin, Magfira Taib, Raflin Hamzah Tirtawaty Abdjul Tsutomu Yamaguchi Vivit Idrus Wahyu Muzizat Mohamad Widi Candika Pakaya Wirnawati Luawo Yita Irmala Sari Yita Irmala Sari Yudoyono, Susilo