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All Journal Jurnal Abdi Ilmu Indonesian Journal of Electrical Engineering and Computer Science JURPIKAT (Jurnal Pengabdian Kepada Masyarakat) Jurnal Ilmiah MADIYA: Masyarakat Mandiri Berkarya Journal of Innovative and Creativity
Ulfa Hasnita
Politeknik Negeri Medan
Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Dentistry Education Engineering Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Public Health Social Sciences Other

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Design and characteristics assessment of wireless vibration sensor for buildings and houses Suherman Suherman; Fahmi Fahmi; Ulfa Hasnita; Zul Herri
Indonesian Journal of Electrical Engineering and Computer Science Vol 21, No 3: March 2021
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v21.i3.pp1381-1388

Abstract

This paper reports the wireless vibration detector design and characterization for practical applications. System is built by using the ATmega microcontrollers, working on a free license 433 MHz frequency. Hardware characteristics are defined through experimental assessments. Assessment mainly on sensor output and sensor installation characteristics. As results, hardware is working as expected, where vibration level achieves at most 13% detection for 12 g vibration source. The vertical axis of the MPU6050 vibration detector results 87.5 times higher detection than in horizontal axis. Detected vibration increases from 1.03 g to 2.61 g when source-sensor distance is shortened from 10 cm to 2 cm. The aluminium sheet as sensor pad causes detection of 8.69 times higher than on ceramic pad. The lower the detection period the better the detection amplitude. However, the lower the period, the higher the consumed power. Microcontroller sleep mode is not suitable for short period detection. The node-based data validation to avoid transmitting false detection is not influencial for short period detection.
PENGUATAN PROMOSI OBJEK WISATA DESA TIMBANG LAWAN KECAMATAN BAHOROK, KABUPATEN LANGKAT Angelia Maharani Purba; Heru Pranoto; Ahmad Hidayat; Ulfa Hasnita
Jurnal Abdi Ilmu Vol 16 No 1 (2023): Jurnal Abdi Ilmu
Publisher : UNIVERSITAS PEMBANGUNAN PANCA BUDI

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Tujuan dari perluasan objek wisata melalui website desa dan media sosial adalah untuk memperluas informasi objek-objek wisata secara luas sehingga dapat meningkatkan perekonomian bagi masyarakat Desa. Potensi wisata di Desa Timbang Lawan adalah wisata air yaitu sungai Bahorok dan air terjun yang berada di Taman Nasional Gunung Leuser. Selain itu terdapat juga camping-ground, off-road, dan jelajah hutan. Saat ini, warga desa hanya melakukan promosi melalui orang ke orang dan juga spanduk. Metoda yang dilakukan adalah dengan pembuatan dan pendampingan operasional website desa kepada perangkat desa. Melalui pembuatan website desa, potensi objek wisata yang ada di Desa Timbang Lawan dapat diketahui oleh masyarakat luas sehingga meningkatkan perekonomian masyarakat desa. Kata kunci : website, wisata, camping-ground
Monitoring Pembelajaran Menggunakan Lookerstudio Hulu, Fitria Nova; Maharani Putri; Mardiana; Ulfa Hasnita
Jurnal Ilmiah Madiya (Masyarakat Mandiri Berkarya) Vol. 5 No. 2 (2024): Edisi November 2024
Publisher : Politeknik Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51510/madiya.v5i2.1915

Abstract

Pengabdian Kepada Masyarakat ini dilaksanakan dengan tujuan meningkatkan pemahaman dan pengetahuan masyarakat terkait penggunaan dan perkembangan teknologi khususnya tentang pembuatan monitoring pembelajaran agar lebih efektif dan efisien. Rumah Tahfidz merupakan lembaga pendidikan yang berkonsentrasi pada pengajaran dan penghafalan Al-Qur’an . Beberapa kesulitan yang dialami oleh rumah tahfidz adalah berkaitan dengan sistem monitoring dan pemantauan perkembangan peserta didik. Sistem yang masih digunakan secra manual seringkali tidak efektif dan rentan terhadap kesalahan khususnya dalam pencatatan. Selain itu, pengelola rumah tahfidz uga menghadapi masalah dalam menyampaikan laporan kemajuan hafalan santri kepada orang tua secara akurat dan tepat waktu. Penggunaan Lookerstudio memudahkan pengelola rumah tahfidz dalam melakukan monitoring baik berupa pencatatan kehadiran, perkembangan hafalan peserta didik dan dapat diakses oelh orang tua siswa. Setiap peserta didik maupun pengajar dapat melihat monitoring secara cepat dan mudah, dimana data yang telah dikumpulkan nantinya akan diolah secara otomatis. Hasil akhir dari kegiatan ini adalah melakukan evaluasi untuk melihat apakah dalam penyampaian materi mudah dipahami oleh peserta. Keywords: Rumah Tahfidz, Sistem Monitoring, Lookerstuido
Transformasi Pemasaran Konvensional ke Digital Marketing Meningkatkan Daya Saing pada UMKM T’Day Co and Tea di Medan Johor Tuti Adi Tama Nasution; Ulfa Hasnita; Mardiana; Fera Damayanti; Rovidatul Hikmah Tanjung
JURPIKAT (Jurnal Pengabdian Kepada Masyarakat) Vol. 7 No. 1 (2026)
Publisher : Politeknik Piksi Ganesha Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37339/jurpikat.v7i1.2821

Abstract

Usaha Mikro, Kecil, dan Menengah (UMKM) memiliki peran penting dalam pertumbuhan ekonomi lokal, namun masih banyak yang mengalami keterbatasan dalam hal pemasaran, khususnya pada era digital. Kegiatan Pengabdian Kepada Masyarakat (PkM) ini bertujuan untuk meningkatkan daya saing UMKM T’Day Co and Tea, sebuah usaha minuman kekinian yang berlokasi di Kelurahan Pangkalan Mansyur, Kecamatan Medan Johor, Kota Medan, melalui penerapan strategi digital marketing. Metode pelaksanaan kegiatan meliputi observasi awal, analisis SWOT, pembuatan konten promosi digital, pelatihan pengelolaan media sosial, serta optimalisasi penggunaan fitur periklanan online. Hasil kegiatan menunjukkan adanya peningkatan pemahaman mitra terhadap pemasaran digital, peningkatan interaksi pelanggan di media sosial, serta kenaikan jumlah kunjungan dan pesanan. Dengan adanya pendampingan ini, UMKM mitra memiliki strategi pemasaran yang lebih terarah dan mampu menjangkau pasar yang lebih luas secara digital. Kegiatan ini diharapkan menjadi model pemberdayaan UMKM berbasis digital marketing yang dapat diterapkan di wilayah lain.
Design And Development Of An Iot-Integrated Automatic Fish Feeder For Freshwater Aquaculture Systems Mardiana Mardiana; Zumhari Zumhari; Ulfa Hasnita; Fera Damayanti
Journal of Innovative and Creativity Vol. 6 No. 1 (2026)
Publisher : Fakultas Ilmu Pendidikan Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/joecy.v6i1.6940

Abstract

. The study purpose was to design and evaluate an IoT-based Automatic Fish Feeder system that integrates sensing, processing, communication, and energy subsystems to improve feeding efficiency in freshwater aquaculture. This research addresses common challenges in manual feeding practices, including inconsistent feeding schedules, inaccurate feed volumes, and lack of real-time monitoring. The system incorporates an ESP32 microcontroller, ultrasonic sensor, servo actuator, and the Blynk platform, supported by a solar-powered energy subsystem, to create a reliable and autonomous feeding mechanism. The objective of the study was to assess the system’s performance through quantitative indicators including response time, sensor accuracy, notification reliability, WiFi stability, feed volume consistency, and energy autonomy. Materials and methods. This study employed a quantitative experimental approach in which the prototype underwent repeated testing under controlled and semi-field conditions. Performance data were collected through direct measurements, digital logs from the Blynk application, and hardware-based monitoring tools. Each subsystem was analyzed based on predefined performance thresholds, and system evaluation was conducted using measurement and structural modeling principles adapted from engineering validation frameworks. Results. The findings indicate that the ESP32 microcontroller produced a consistent response time below two seconds, while the ultrasonic sensor achieved accuracy above ninety-five percent after calibration. Notification reliability exceeded ninety percent, and WiFi stability reached more than ninety-five percent uptime. The solar energy subsystem provided sufficient power for continuous operation, and feed dispensing remained consistent across multiple trials. These outcomes show that the system fulfills its intended functional criteria. Conclusions. The study concludes that the IoT-based feeder operates effectively as an integrated automated system capable of enhancing feeding consistency and reducing manual workload in aquaculture. The prototype is reliable, energy-efficient, and suitable for further development and field-scale implementation.
Co-Authors Ahmad Hidayat Angelia Maharani Purba Fahmi Fahmi Fera Damayanti Fera Damayanti HERU PRANOTO Hulu, Fitria Nova Maharani Putri MARDIANA Mardiana Mardiana Rovidatul Hikmah Tanjung Suherman Suherman Tuti Adi Tama Nasution Zul Herri Zumhari Zumhari