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All Journal TEKNIK INFORMATIKA Jurnal Penelitian Komunikasi dan Opini Publik Jurnal Fisika FLUX InfoTekJar : Jurnal Nasional Informatika dan Teknologi Jaringan JOIV : International Journal on Informatics Visualization Masyarakat Telematika Dan Informasi : Jurnal Penelitian Teknologi Informasi dan Komunikasi Jurnal Komunika : Jurnal Komunikasi, Media dan Informatika MULTINETICS Jurnal Teknologi Informasi dan Terapan (J-TIT) Journal of Robotics and Control (JRC) Jurnal Abdi Insani Mitra Akademia: Jurnal Pengabdian Masyarakat Journal of Telecommunication, Electronics and Control Engineering (JTECE) Mejuajua Society: Jurnal Pengabdian Masyarakat JURNAL POLI-TEKNOLOGI Presisi Jurnal Pengabdian Masyarakat Karunia: Jurnal Hasil Pengabdian Masyarakat Indonesia Jurnal Elektronika dan Telekomunikasi
Prihatin Oktivasari
Politeknik Negeri Jakarta
Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering 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 Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Public Health Social Sciences Transportation Other

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Active Filter Analysis on Designing Electronic Stethoscope Prihatin Oktivasari; Riandini Riandini; Rahmah A. Fitri; Sungguh I. Malaon
Jurnal Elektronika dan Telekomunikasi Vol. 19 No. 2 (2019)
Publisher : National Research and Innovation Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jet.v19.51-56

Abstract

Early heart disease detection could be vital and some other diagnostic ways are being developed. In this paper, a lowcost tool for a diagnostic that analyzes the digitized heartbeat sound is given. This can be used to detect heart anomalies. The instrument shows the heart sound and also keeps a patient's long-term record for future use. The signal from the heart provides a lot of knowledge about the heart and offers an initial diagnosis recommendation. The electronic stethoscope uses the condenser microphone, preamplifier circuit, and filter circuit. The optimum filter is Butterworth with a fourth-order Sallen key low pass filter topology with a gain of 0.707 volts, -3.01 dB, and a fourth-order high pass filter with a gain of 0.782 volts, -2.137 dB. The frequency of the heart sound is about 20 Hz – 120 Hz in general. Therefore, the lower cutoff frequency of the filter is set to 20 Hz, while the higher cutoff frequency set to 120 Hz. The evaluation used to measure the performance of an electronic stethoscope is to compare with a conventional stethoscope, the recorded sound is the same.
Nutrition, pH, Temperature, and Humidity Monitoring Hydroponics System based on Android Prihatin Oktivasari; Muda Wali Samudra Pasai; Mustofa Mustofa; Royhan Royhan; Asep Kurniawan
Jurnal Elektronika dan Telekomunikasi Vol. 24 No. 1 (2024)
Publisher : National Research and Innovation Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/jet.585

Abstract

Agriculture plays a very important role in the lives of Indonesian people. With technological advances and the increasing limitation of agricultural land, the patterns of matching crops in societies have changed. Innovations have been implemented, one of which is the use of technology such as hydroponic systems. One of the main factors that influence the success of hydroponic methods is temperature and humidity. The research aims to design and develop an autonomic control system that uses Fuzzy Logic to regulate the temperature and moisture of hydroponic plants, as well as to design the control of the nutrition and pH supply of hydrogen plants. Hydroponics plant control systems are implemented using microcontrollers and DHT22, TDS sensors, and pH sensors. In addition, an Android-based interface has been developed to monitor and control the system remotely via an internet connection. In this study the accuracy of the TDS sensor is 96.5%, the pH sensor was 98.19%, and the precision of the Fuzzy logic system at temperature and humidity is 100%
Solar-Powered Insect Trap Lamp to Support Food Security for Vegetable Farmers at BBPP Lembang, Bandung Nana Sutarna; Isdawimah; Ahmad Tossin Alamsyah; Yogi Widiawati; Murie Dwiyaniti; Mera Kartika Delimayanti; Aminudin Debateraja; Prihatin Oktivasari
Society : Jurnal Pengabdian Masyarakat Vol. 5 No. 3 (2026): Mei
Publisher : Edumedia Solution

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55824/m5f6mr11

Abstract

The excessive use of chemical pesticides in vegetable cultivation has negative impacts on both the environment and human health. This community service activity aimed to introduce and implement a solar-powered insect trap (solar light trap) as an environmentally friendly alternative for pest control. The program was carried out in collaboration with the Sugih Mukti Farmers Group under the guidance of BBPP Lembang, Bandung. The applied methods included training, joint assembly of the device with students, as well as demonstration and handover of the tool to farmers. The results showed that this technology received positive responses from the farmers and has the potential to reduce pesticide use. Furthermore, the tool’s effectiveness was monitored to support a scientific publication. This activity represents a concrete step in applying appropriate technology to improve the quality of environmentally friendly agriculture.
Co-Authors - Suprijadi, - ABN, Kemal Ade Agung Harnawan, Ade Agung Ahmad Tossin Alamsyah Aminudin Debateraja Anis Rosyidah Asep Kurniawan Asep Kurniawan Ayu Rosyida Zain Ayu Rosyida Zain Defiana Arnaldy Defiana Arnaldy Denny Yatmadi Desi Dyah Sulistyarini Dimas Aulia Fachrudin Dwi Irawati Erwin Ardiansyah F, Frally Fadila, Annisa Intan Fadila, Annisa Intan Faiz Watsiqul Umam Fitri, Rahmah A. Fityan Aula Juyuspan Freddy Haryanto Gunadi, Gun Gun Ramdlan HM, Ahmad I Ketut Sucita Iik Muhamad Malik Matin INDRA HERMAWAN Isdawimah Kadarwati, Dinda Malaon, Sungguh I. Maria Agustin Mera Kartika Delimayanti Muda Wali Samudra Pasai MURIE DWIYANITI1 Mustofa Mustofa Mustofa Mustofa Nana Sutarna Nisrina Tsany Sulthanah Nuha, Khasna Ulin Nur Fauzi Soelaiman Pasai, Muda Wali Samudra PPN, Dwiyan Rahmah A. Fitri Ratna Widya Iswara, Ratna Widya Reza Kamaluddin Isman Riandini Riandini Riandini, Riandini Risma Nuraini Royhan Royhan Royhan, Royhan Rucita, Calista Bertha Rucita, Calista Bertha Sanjaya, Rinaldi Sanjaya, Rinaldi SS, Muhammad Suhandana, Ariawan Andi Sungguh I. Malaon Tjahyadi, Christianto Tohazen, Tohazen Tubagus Habibullah wirawan, chandra Yogi Widiawati Zain, Ayu Rosyida Zufar Fathi Suhardi