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All Journal Jurnal SPEKTRUM Jurnal Media Infotama Jurnal Sains dan Teknologi JUTEI (Jurnal Terapan Teknologi Informasi) SINTECH (Science and Information Technology) Journal Journal of Computer Science and Informatics Engineering (J-Cosine) Journal of Electrical, Electronics and Informatics SPEKTA (Jurnal Pengabdian Kepada Masyarakat : Teknologi dan Aplikasi) Jurnal Ilmiah Wahana Pendidikan Jurnal Riset Rumpun Ilmu Teknik (JURRITEK) Jurnal SPEKTRUM
I Made Arsa Suyadnya
Program Studi Teknik Elektro, Fakultas Teknik, Universitas Udayana
Religion Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Social Sciences Other

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Journal : Jurnal SPEKTRUM

 1 
REKAYASA SISTEM PRESENSI KLINIK KESEHATAN BERBASIS APLIKASI MOBILE I Made Cakra Pustaka1; I Ketut Putra Swastika; I Kadek Agung Bagus Satria Bumi Kelana; Made Sudarma; I Made Arsa Suyadnya; Duman Care Khrisne
Jurnal SPEKTRUM Vol. 12 No. 3 (2025): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/SPEKTRUM.2025.v12.i03.p4

Abstract

Manual attendance systems in health clinics are often ineffective, reducing service quality, and increasing operational costs. This study designed an integrated digital attendance system with a mobile application for medical personnel and an admin website aimed at improving the efficiency and accuracy of attendance management. Development followed the Waterfall SDLC model, while testing included Black-Box Testing, Cognitive Walkthrough (CW), and System Usability Scale (SUS). The mobile application supports in-clinic/out-of-clinic attendance (Wi-Fi validation, geolocation, selfie photos, documents), leave requests, work schedules, attendance recaps, and pay slips. The admin website facilitates employee data management, attendance and leave validation, work schedule creation, and salary and attendance recaps. Black-Box Testing results showed success in all functional scenarios; CW recorded 96% effectiveness (mobile) and 98% (website) with very fast efficiency; SUS scores of 76.42 and 76.07, respectively, indicating good usability; and API testing proved smooth data integration. This system has been proven to be functional, effective, efficient, and ready to be implemented in health clinics.
RANCANG BANGUN SISTEM MONITORING PERTANIAN HIDROPONIK BERBASIS IoT DAN APLIKASI MOBILE (HYDROTECH) I Putu Prasna Mahardika; Putu Pande Deva Ryana Putra; Duman Care Khrisne; I Made Arsa Suyadnya
Jurnal SPEKTRUM Vol. 12 No. 3 (2025): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/SPEKTRUM.2025.v12.i03.p13

Abstract

Urban agricultural land conversion encourages the use of hydroponic systems. However, people's busy lives make it difficult to monitor the nutrition and environment of hydroponic plants. This study developed a monitoring system called Hydrotech, an IoT-based hydroponic monitoring system with an ESP32 microcontroller and pH, TDS, temperature (DS18B20), and water level sensors. Data from the sensors is sent to Firebase and displayed through a mobile application. The method used is an experiment and literature study. Testing was carried out by planting lettuce using the Hydrotech system to evaluate its performance. Primary data was obtained from device testing which includes data from research on the sensors used, while secondary data was obtained from previous research sensor data as a comparison with the current study. The results of this study indicate that the four sensors used, namely the pH, TDS, water level, and temperature DS18B20 sensors, can function properly. Hydrotech is also equipped with an Android application to display sensor data in real time and present historical data for each sensor used for further analysis on hydroponic plants. The Hydrotech application is also filled with a planting calendar as a reminder of planting and harvesting times for hydroponic plants. This Hydrotech monitoring system helps city residents manage hydroponics optimally and efficiently in terms of both energy and time.
PEMANFAATAN INTERNET OF THINGS (IOT) PADA PERANCANGAN SISTEM BANGUNAN CERDAS Komang Bagus Dwi Widiatama Putra; I Nyoman Satya Kumara; I Wayan Sukerayasa; I Made Arsa Suyadnya
Jurnal SPEKTRUM Vol. 12 No. 3 (2025): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/SPEKTRUM.2025.v12.i03.p17

Abstract

The development of Internet of Things (IoT) technology has made a significant contribution to the design of smart building systems. This research discusses the utilization of IoT in designing smart building systems based on previous studies. The focus of the discussion includes the use of controllers, various types of sensors and control devices, and system scope. By understanding the use of IoT devices and the approaches used in prior research, this study is expected to serve as a reference in the development of smart building systems to be more adaptive and efficient in the future.
Co-Authors A. Jagad Miftahul Rizqy A.A Raka Novi Aristi AA Ngurah Cakra Khana Ade Aprilio Kedeo Adinda Hermawan, Salsabila Adisti Anjani Putri Agung, I Gusti Agung Pt Raka Agus Wisnu Kusuma Nata Anak Agung Dewi Sintyarianti Anak Agung Ngurah Amrita Anak Agung Ngurah Prawira Yudha Andrew Dwi Permana Arya Mertasana , Putu Aulia, Faraz Muhammad Bayu Andika Virgunzena Damayanti, Dewi Ayu Sulistyo Darma Kotama, I Nyoman Dewa Gede Dede Pramana Dewa Made Wiharta Dharma Dutaluhur Artha Lesmana Duman Care Khrisne Duman Care Khrisne Duman Care Khrisne Dwika Prihambodo, Prakoso Edo Halim Saputra Endika Ginting, Alloy Fajar Purnama Faraz Muhammad Aulia Faridzky, Fadel Ferry yudhitama putra Gede Iga Wilhamdika Gede Putu Nuratjaya Gede Sukadarmika Guna, Putu Ivan Adi Hartawan, I Gusti Agung Komang Dlafari Djuni I Dewa Gede Nala Wilantika I G. A. K. Diafari Djuni Hartawan I Gede Agus Satya Dharma I Gede Andhika Putra I Gede Herry Juniartha I Gede Juliantara Putra I Gst Agung Alit Wismaya I Gst Agung Putu Raka Agung I Gusti Agung Gede Mega Perbawa I Gusti Made Panji Indrawinatha I Gusti Ngurah Agung Widhiananda I Kadek Agung Bagus Satria Bumi Kelana I Kadek Sastrawan I Ketut Putra Swastika I Made Artawan I Made Cakra Pustaka1 I Made Dedi Pradnya Iswara I Made Oka Widyantara I MADE SUDARMA I Made Wismadi I N Satya Kumara I Nyoman Piarsa I Putu Arya Putrawan I Putu Prasna Mahardika I Putu Wahyu Eka Suryawan I Wayan Adi Setyadi I Wayan Arta Wijaya I Wayan Shandyasa I Wayan Shandyasa I Wayan Sukerayasa Ida Ayu Kaniya Pradnya Paramitha Ida Bagus A. Swamardika Ida Bagus Darma Putra Ida Bagus Putu Sudarma Putra Irvan Dinda Prakoso Iskandar, Adi Panca Saputra Jayantara Adiputra, A A Bagus Kadek Utari Widiarsini Kadek Yogi Saputra Karda, Putu Adistyanda Timoti Raja Komang Bagus Dwi Widiatama Putra Komang Isabella Anasthasia Komang Oka Saputra Krisna Hany Indrani M. Ardi Fermanta Made Sudarma Made Sudarma Made Sudarma Sudarma Maulana Hendarwan, Iqbal Mkwawa, Is-haka Mohammad Aryo Wibowo Negara, I Putu Bayu Negara, I Putu Bayu Ni Komang Sukri Antariani Ni Made Ananda Putri Pratiwi Ni Made Ary Esta Dewi Wirastuti Ni Made Ary Esta Dewi Wirastuti Ni Made Dwi Antari Nunut Asihanna, Ester Nur Adl, Waliyin Nyoman Arsa Suartana Nyoman Putra Sastra Nyoman Swastika Dharma Palaguna, I Nyoman Terang Trimakna Pande Gede Wipradnyana Pratama, I Nyoman Natha Puspitawati, Luh Eka Putra Dharma, Wisnu Wardhana Putra Sentana, Kadek Wibawa Putu Adistyanda Timoti Raja Karda Putu Anggara Mahardika Putu Arya Mertasana Putu Bagus Satria Paramartha Putu Pande Deva Ryana Putra Rahel Kristina Prajnyawati Rizky Muharram Julyanto Robbani Punggawa Arcapada Ruth Damayanti Patricia Simamora Sari Dewi Hartanto, Dessy Ratna Satria Paramartha, Putu Bagus Sibuea, Dwik Andarilas Sitorus, David Samuel Utami, Komang Sri Wahyu Rizki Arifianto Widyadi Setiawan Wijaya Kusuma Yasa, Kadek Yogi Prawira Putra Yuliansyah, Alfian Fahrul