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All Journal Spektra: Jurnal Fisika dan Aplikasinya Pendas : Jurnah Ilmiah Pendidikan Dasar Elektrika JURNAL MANAJEMEN (EDISI ELEKTRONIK) Jurnal Sains Teknologi dan Sistem Informasi Jurnal Abdi Masyarakat Indonesia Jurnal Sains Terapan : Wahana Informasi dan Alih Teknologi Pertanian NUSANTARA: Jurnal Pengabdian Kepada Masyarakat Jurnal Sintak Electronic Journal of Education, Social Economics and Technology Metta: Jurnal Penelitian Multidisiplin Ilmu Global Leadership Organizational Research in Management JURNAL SOSIAL TERAPAN (JSTR)
BAYU WIDODO
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PENINGKATAN KETERAMPILAN MENULIS PANTUN DENGAN MODEL THINK TALK WRITE PADA SISWA KELAS V SD Widodo, Bayu; Sumartiningsih, Sri; Yuwono, Agus
Pendas : Jurnal Ilmiah Pendidikan Dasar Vol. 9 No. 04 (2024): Volume 09, Nomor 04, Desember 2024
Publisher : Program Studi Pendidikan Guru Sekolah Dasar FKIP Universitas Pasundan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/jp.v9i04.19697

Abstract

This research uses a classroom action research method with data collection techniques in the form of tests and non-tests (observations). The analysis technique uses quantitative descriptive. This research aims to improve the skills of class V-B students in writing rhymes. The results in class V-B, the average score of class V-B students in the cycle I rhyme writing test reached 69.4% with sufficient criteria. Meanwhile, the average score for class V-B students in cycle II reached 82.96% with Good criteria. The completion rate in cycle I still reached 40.7%. In cycle II, the completion rate in cycle II reached 85.2%.
Lightweight Cryptography for IoT in Wireless Sensor Networks: Evaluating Speck, Simon, and Ascon Using NS-3 Widodo, Bayu; Fazrie, Mohammad; Parulian, Dudi
Electronic Journal of Education, Social Economics and Technology Vol 6, No 2 (2025)
Publisher : SAINTIS Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33122/ejeset.v6i2.1161

Abstract

Communication security in Wireless Sensor Networks (WSNs) is a significant challenge in the implementation of the Internet of Things (IoT), particularly in smart city applications which have limitations in energy, memory, and computation. Conventional cryptographic algorithms are generally not suitable for IoT devices due to their complexity and high resource requirements, necessitating lightweight cryptography (LWC) algorithms that can balance security and efficiency. This research evaluates three lightweight encryption algorithms - Speck, Simon, and Ascon - using NS-3 simulations in a multi-hop network scenario with 30 nodes. The parameters analyzed include energy consumption, encryption/decryption time, and communication overhead. The simulation results show a significant trade-off: Speck and Simon excel in energy efficiency and low latency, but their security level is moderate; while Ascon provides stronger security according to NIST LWC standards, but with the consequence of higher energy consumption. The main contribution of this research is the provision of a reproducible NS-3 simulation-based framework that can link security and energy efficiency aspects, while also filling the literature gap, which is still limited to hardware testing. This finding is expected to serve as a practical reference for IoT system designers in determining the appropriate encryption algorithm for smart city application needs, and to open up opportunities for further research on real IoT devices.
Calibration of Dissolved Oxygen Sensors in IoT Systems for Water Quality Monitoring in Aquaculture Mindara, Gema Parasti; Sholihah, Walidatush; Novianty, Inna; Fathonah, Lathifunnisa; Marcelita, Faldiena; Siskandar, Ridwan; Ariyanto, Dodik; Widodo, Bayu; Setiawan, Aep; Firdaus, Naufal Rizqullah
Spektra: Jurnal Fisika dan Aplikasinya Vol. 10 No. 3 (2025): SPEKTRA: Jurnal Fisika dan Aplikasinya, Volume 10 Issue 3, December 2025
Publisher : Program Studi Fisika Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/SPEKTRA.103.06

Abstract

Dissolved Oxygen (DO) is an important parameter for maintaining water quality in aquaculture systems. The accuracy of DO sensors significantly affects the reliability of Internet of Things (IoT)-based monitoring systems. This study aimed to calibrate the DO sensor using a two-point calibration method and evaluate the accuracy of the sensor readings compared with those of a reference device (standard DO meter). A key novelty of this study lies in its multi-media calibration, performed directly on six distinct aquaculture water types, providing field-realistic validation conditions not commonly explored in previous studies. Furthermore, the accuracy of the calibrated sensor is evaluated quantitatively using MAE, RMSE, and percentage deviation to ensure rigorous performance assessment. The system was developed using an ESP32 microcontroller, DO sensor (SEN0237), DS18B20 temperature sensor, and ADS1115 ADC module. Testing was performed on six types of aquaculture water media and compared with a standard DO meter using a comparative approach. In total, n = 6 field measurement points (one stabilized reading per water medium) were used to compute MAE, RMSE, and percentage deviation. The comparison results showed that the calibrated sensor had high accuracy, with a Mean Absolute Error (MAE) of 0.1083 mg/L and a Root Mean Square Error (RMSE) of 0.2654 mg/L. Significant deviations occurred only in one type of water medium, whereas the other five showed results consistent with the reference device, indicating stable sensor readings. These findings confirm that proper calibration can improve the accuracy and reliability of IoT systems used for water-quality monitoring. Regular calibration is required to maintain the sensor performance, particularly for long-term use in dynamic aquaculture water environments.
Pemberdayaan Masyarakat melalui Penerapan Pirolisis Berbasis Internet of Things untuk Peningkatan Kapasitas Pengelolaan Sampah Plastik di Kelurahan Mulyaharja, Bogor Fathonah, Lathifunnisa; Novianty, Inna; Parasti, Gema; Ariyanto, Dodik; Marcelita, Faldiena; Siskandar, Ridwan; Widodo, Bayu; Irmansyah, Irmansyah; Taya, Liora; Nur Azizah, Laila
Jurnal Abdi Masyarakat Indonesia Vol 6 No 1 (2026): JAMSI - Januari 2026
Publisher : CV Firmos

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54082/jamsi.2496

Abstract

Kelurahan Mulyaharja, Kota Bogor, menghadapi permasalahan tingginya volume sampah plastik rumah tangga yang belum terkelola dengan baik. Sebagian sampah dibakar atau dibuang ke lingkungan sekitar, sehingga menimbulkan pencemaran dan risiko kesehatan masyarakat. Program pengabdian ini menerapkan teknologi pirolisis berbasis Internet of Things (IoT) untuk mengonversi sampah plastik menjadi bahan bakar alternatif melalui pendekatan participatory community-based implementation. Metode kegiatan meliputi analisis kebutuhan, perancangan dan pembuatan alat, pelatihan, serta pendampingan operasional bagi warga Kelurahan Mulyaharja. Hasil pengabdian menunjukkan bahwa prototipe pirolisis berbasis IoT berhasil beroperasi stabil pada skala komunitas. Sebanyak lebih dari 70% warga peserta mampu mengoperasikan alat secara mandiri sesuai prosedur keselamatan kerja. Hasil survei menunjukkan 76% warga sangat peduli terhadap lingkungan, dan 86% menyatakan kegiatan ini memberikan manfaat nyata. Selain itu, terjadi penurunan praktik pembakaran dan pembuangan sampah ke sungai, serta mulai terbentuk kelompok pengelola alat berbasis masyarakat. Produk minyak hasil pirolisis telah dimanfaatkan sebagai bahan bakar alternatif untuk peralatan sederhana. Program ini memperkuat kapasitas masyarakat dalam pengelolaan sampah, mendukung keberlanjutan teknologi berbasis komunitas, serta mendorong koordinasi antara warga, pengurus RW, dan kelurahan.
Co-Authors Aditya Wicaksono Agus Yuwono Agustina Tyas Asri Hardini Alpino, Jimmy Mohamad Alyana Mevia Zahra Arifia, Revanda Atika Rahmanah Aulia, Irna Budi Budi Corazon, Marcella DODIK ARIYANTO Fadilah, Fikri Fajarudin, Muhammad Fathonah, Lathifunnisa Fazrie, Mohammad Firdaus, Naufal Rizqullah Gema Parasti Mindara Hikmah Rahmah Irmansyah Irmansyah . Kuntari, Wien Lovely, Vanya Amanda Manurung, Maryetha Marcelita, Faldiena Mindara, Gema Parasti Muhammad Arsil Adhim Mulya, Muhammad Arif Novianty, Inna Nur Aziezah Nur Aziezah Nur Azizah, Laila Parasti, Gema Parulian, Dudi Priana, Arya Prabudi Jaya Rahmadaniar, Ihda Rahmah, Hikmah Ridwan Siskandar Saragih, Bennefit Christy Sastrawan, Uding Setiawan, Aep Sholihah, Walidatush Sri Sumartiningsih Taya, Liora Uding Sastrawan Warcito