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All Journal MEKANIKA - JURNAL TEKNIK MESIN Otopro G-Tech : Jurnal Teknologi Terapan Jurnal Kependidikan: Jurnal Hasil Penelitian dan Kajian Kepustakaan di Bidang Pendidikan, Pengajaran dan Pembelajaran Power Elektronik : Jurnal Orang Elektro Qomaruna Indonesian Journal of Electronics, Electromedical Engineering, and Medical Informatics
Ellys Kumala Pramartaningthyas, Ellys Kumala
Institut Teknologi Sepuluh Nopember
Religion Automotive Engineering Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Energy Engineering Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Mechanical Engineering Social Sciences Other

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IMPLEMENTASI INTERNET OF THINGS (IOT) PADA SISTEM MONITORING DAN NOTIFIKASI PEMAKAIAN LISTRIK RUMAH TANGGA BERBASIS APLIKASI BLYNK ma'shumah, siti; Pramartaningthyas, Ellys Kumala; Rokhim, A Ghofurur
Power Elektronik : Jurnal Orang Elektro Vol 12, No 3 (2023): POWER ELEKTRONIK
Publisher : Politeknik Harapan Bersama Tegal

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30591/polektro.v12i3.5282

Abstract

Gaya hidup masyarakat telah mempengaruhi tingkat konsumsi listrik mengalami peningkatan. Pemakaian listrik rumah tangga yang boros disebabkan tidak adanya sistem kendali dalam memantau jumlah daya yang digunkan. Pemantauan menggunakan kWh meter tidak cukup karena tidak mampu memantau setiap beban berlebih dalam pemakaian daya listrik. Pada penelitian sistem monitoring dan notifikasi pemakaian beban listrik untuk rumah tangga berbasis internet of things menggunakan blink merupakan sistem untuk memantau beberapa beban listrik dalam rumah tangga melalui smartphone dengan harapan lebih memudahkan pemakai untuk melihat daya yang telah digunakan secara maksimal dan memberikan keamanan apabila ditemukan pada pemakaian listrik pada beban yang berlebih. Pada penelitian ini menggunakan sensor PZEM-004T untuk mengukur nilai tegangan, arus dan daya pada beban peralatan listrik. NodeMCU esp 32 sebagai mikrokontroller dengan dilengkapi wifi module untuk dapat terkoneksi ke internet melalui. Aplikasi Blink digunakan sebagai media pemantauan nilai yang terukur pada sensor sesuai beban peralatan listrik yang digunakan. Hasil pengujian pada sistem ini menunjukkan sitem telah berjalan dengan baik, kinerja yang baik ditunjukkan pada sistem control dan pengukuran delay pada QoS. Pada pengukuran delay pada QoS selama pengujian memiliki total rata-rata delay 104.9 ms.
Optimasi Filter Bandpass Aktif untuk Sinyal Lemah Menggunakan Quantum Particle Swarm Optimization pada Studi Kasus Spektral Daya Sinyal Electroencephalogram Pramartaningthyas, Ellys Kumala; Lostari, Aini
Jurnal Studi Multidisiplin Qomaruna Vol 1 No 2 (2024): 2024
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM), Universitas Qomaruddin, Gresik, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62048/qjms.v1i2.46

Abstract

This research focuses on using Quantum Particle Swarm Optimization to optimize active bandpass filters for weak signals. Electroencephalograph signal data obtained from other researchers was used as a case study in this research. This Electroencephalogram signal data, consisting of 1280 signal amplitudes with a sampling frequency of 256 Hz, was characterized before being fed into Quantum Particle Swarm Optimization for optimization. The optimization goal of Quantum Particle Swarm Optimization is to achieve a signal frequency range with a maximum average power value. For bandpass filter design, the frequency range obtained from Quantum Particle Swarm Optimization is used as a reference. The frequency range of 9.9 Hz to 13 Hz and 15.99 Hz to 30 Hz provides optimal conditions. The filter design is based on the frequency range of optimization results and component values R1, R2, and R3 respectively 5.1M?, 10.2 M?, and 1M? with C1=C2=0.01?F for frequencies 9.9 Hz to 13 Hz, and a value of 1 .2M?, 2.4 M?, and 1M? each with C1=C2=0.01?F for frequencies 15.99 Hz to 30 Hz.
Rancang Bangun Prototype Sistem Kontrol Suhu dan Monitoring PH Air Pada Aquarium Benih Ikan Lele Dumbo Menggunakan Arduino UNO dan NodeMcu Berbasis IoT (Internet Of Things) Hariyadi, Mohammad; Pramartaningthyas, Ellys Kumala; Ma'shumah, Siti; Salam, Mohammad Fikri Abdullah
Jurnal Studi Multidisiplin Qomaruna Vol 2 No 1 (2024): 2024
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM), Universitas Qomaruddin, Gresik, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62048/qjms.v2i1.60

Abstract

Cultivation of Dumbo Catfish requires optimal water quality management to ensure healthy fry growth. Key parameters to monitor are water temperature and pH, as imbalances can negatively affect the health and growth of the fish. This study aims to design and develop a prototype water quality monitoring system based on the Internet of Things (IoT) using Arduino UNO and NodeMCU. In ideal cultivation conditions, the optimal water acidity (pH) ranges between 6–9, and the ideal water temperature is 26–30 °C. Using Arduino UNO and NodeMCU IoT technology, fish farmers can more easily control temperature and monitor water pH in the fry nursery aquariums. Arduino is the microcontroller, while the NodeMCU Wi-Fi module connects the microcontroller to the Blynk application as the user interface. Temperature regulation is achieved through water heaters and Peltier elements. Test results indicate that the system can maintain an average temperature of 26 °C and an average pH of 6, consistent with manual measurements using a water thermometer and litmus paper. The heating and cooling systems function optimally, with an average delay time of 13.5884298 milliseconds, significantly lower than the 150-millisecond threshold. Thus, the system operates effectively, facilitating fish farmers in real-time monitoring and controlling aquarium water quality.
PENGARUH TEMPERATUR PEMANASAN DAN MEDIA PENDINGINAN PADA PROSES FLAME HARDENING TERHADAP NILAI KEKERASAN PADA BAJA S45C Machfuroh, Talifatim; Lostari, Aini; Ulum, Miftahul; Pramartaningthyas, Ellys Kumala
Otopro Vol 20 No 1 Nov 2024
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/otopro.v20n1.p1-6

Abstract

Sprocket is one of the main components in two-wheeled vehicles that transfer the rotary force from the engine to the rear wheels of the motorcycle. Because of this main function, the sprocket wears out faster due to friction between the chain and the sprocket. Therefore, a heat treatment process is needed to improve the mechanical properties of steel to make it more resistant to friction. Based on this background, this research focuses on the effect of temperature and cooling media on the hardness level of the material that receiving heat treatment in the form of flame hardening. The material used is S45C steel. The heat treatment process is carried out on steel with heating temperatures of 750º C and 850º C. After being heated, the steel will be quenched quickly with cooling media in the form of fresh water and turalic oil 48 ISO VG 46. Next, the hardness analysis process is carried out on the test object. From the results of the hardness test, it was found that the highest average hardness value was produced by the test object which underwent a flame hardening process at a temperature of 850 oC with fresh water cooling medium, which was 335.333 HB. Fresh water cooling media tends to produce higher hardness values ​​than turalic oil. This is because the cooling rate of fresh water is faster than oil.
Electrical Conductivity Control System in Pakcoy Plant based on Fuzzy Logic Control Ma’shumah, Siti; Pramartaningthyas, Ellys Kumala
Indonesian Journal of Electronics, Electromedical Engineering, and Medical Informatics Vol. 3 No. 4 (2021): November
Publisher : Jurusan Teknik Elektromedik, Politeknik Kesehatan Kemenkes Surabaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35882/ijeeemi.v3i3.210

Abstract

Along with increasing consumption of vegetables as a fulfillment of nutrition in the community, it provides a breakthrough to create a new method of growing vegetables, namely using a system of growing vegetables using water called the hydroponic system. In the hydroponic system here using the Nutrient Film Technique (NFT), the NFT technique is a hydroponic cultivation method where roots grow in a shallow nutrient layer and are circulated so that they will get nutrients, water, and oxygen continuously. One of the important things that is a measure of the success of a hydroponic system is the provision of nutrients to plants correctly. The concentration of nutrient solution that plants need requires a number of different electrical conductivity. In this study to control the pakcoy plant by using fuzzy logic. Which consists of 2 inputs, TDS sensor and ultrasonic sensor. While the output given by the control of this system is the length of the pump opening. The pump for output is divided into 3, the first is the pump for water, the second is the pump for nutrition A and the last is the pump for nutrition B. In this system, hydroponic nutrient control in pakcoy plants has been tried using fuzzy logic control with a success rate of ±70%. This shows that the experiment that has been carried out by the system can run well, namely being able to maintain hydroponic nutrients in pakcoy plants
Rancang Bangun Sistem Kontrol dan Monitoring Suhu dan Kelembaban Tanah pada Greenhouse berbasis Internet of Thing menggunakan Aplikasi Telegram Pramartaningthyas, Ellys Kumala; Ma'shumah, Siti; Mahmudah, Ratna Sri
Jurnal Studi Multidisiplin Qomaruna Vol 1 No 1 (2023): 2023
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM), Universitas Qomaruddin, Gresik, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62048/qjms.v1i1.29

Abstract

The quality of plant growth is significantly influenced by environmental factors, including temperature, air humidity, soil moisture, light intensity, and air quality. Therefore, an agrotechnology approach is required to manage exposure to these environmental factors in accordance with the needs of plant growth processes, which can be achieved through greenhouse technology. To facilitate real-time and remote monitoring and control in the greenhouse farming system, this research involves the design of a temperature and humidity control and monitoring system based on the Internet of Things (IoT). This study employed a NodeMCU ESP8266 microcontroller and a DHT11 sensor to detect the temperature and humidity levels in the greenhouse. The performance test results show that the system works well according to the programming algorithm provided, with an average error rate of 1.2% for the temperature sensor and 1.17% for the humidity sensor. The test results for notification delay time on the Telegram application also meet the standard requirements of Telecommunications and Internet Protocol Harmonization Over Networks (TIPHON), with an average delay value of 0.532882 ms
Development of Interactive E-Module to Foster EFL Students’ Critical Thinking in Essay Writing Wardani, Happy Kusuma; Pramartaningthyas, Ellys Kumala; Rohman, Taufiqur; Alimin, Alimin
Jurnal Kependidikan : Jurnal Hasil Penelitian dan Kajian Kepustakaan di Bidang Pendidikan, Pengajaran, dan Pembelajaran Vol. 11 No. 1 (2025): March
Publisher : LPPM Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/jk.v11i1.13577

Abstract

This study aims to develop an interactive E-Module to enhance creative thinking among EFL students in academic writing, specifically essay writing. This study used research and development (R&D) with the ADDIE model, which encompasses five stages: Analysis, Design, Development, Implementation, and Evaluation. The subject of this study involved 23 students of the English Language Education Study Program from a state university in Gresik, Indonesia. The research instruments included questionnaires and interviews in the need analysis stage, validation forms in the development stage to obtain review and recommendations from the expert validators, and evaluation questionnaires to discover students’ responses towards the implementation of the E-Module. Data were analyzed using mixed methods of descriptive qualitative and quantitative. The results showed that experts validated E-Module’s high quality, with minor revisions. In addition, students’ responses indicated strong effectiveness, with 83% reporting improved understanding and motivation. Furthermore, experts and students confirmed that the E-Module demonstrated practicality through ease of use and structured progression. Overall, experts and students perceive the interactive E-Modul developed in this study as a valuable tool for fostering critical thinking and independent learning.
EVALUASI PERFORMA MESIN UJI FATIGUE ROTARY DENGAN VARIASI TUMPUAN TETAP DAN GULIR PADA SPESIMEN STAINLESS STEEL 304 Lostari, Aini; Pramartaningthyas, Ellys Kumala; Supardi, Supardi; Sugiono, Didik; Ulum, Miftahul; Kulsum, Umi; Hartono, Yudi
MEKANIKA: Jurnal Teknik Mesin Vol. 11 No. 2 (2025): December
Publisher : Program Studi Teknik Mesin, Universitas 17 Agustus 1945 Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30996/jm.v11i2.133082

Abstract

ABSTRAK Fenomena fatigue atau kelelahan material merupakan salah satu penyebab utama kegagalan komponen mesin akibat pembebanan berulang dengan tegangan yang berfluktuasi di bawah batas luluh (yield strength) maupun tegangan tarik maksimum (ultimate tensile strength). Penelitian ini bertujuan untuk menganalisis karakteristik hasil uji fatigue rotary pada spesimen Stainless Steel 304 dengan tumpuan tetap (fixed support) dan tumpuan gulir (roll support). Pengujian dilakukan menggunakan spesimen berbahan Stainless Steel 304 sesuai standar ASTM A276 dengan variasi beban 60 kg, 80 kg, dan 100 kg. Hasil pengujian menunjukkan bahwa peningkatan beban menghasilkan kenaikan tegangan maksimum namun menurunkan jumlah siklus kelelahan material. Pada beban 60 kg, diperoleh tegangan sebesar 3530,4 MPa dengan 2299,1 siklus dalam waktu 99 detik; pada beban 80 kg diperoleh tegangan 4903,3 MPa dengan 1166,9 siklus dalam waktu 54 detik; dan pada beban 100 kg diperoleh tegangan 6080,1 MPa dengan 506,54 siklus dalam waktu 24 detik. Hasil ini menunjukkan bahwa semakin besar beban yang diterapkan, semakin rendah umur kelelahan (fatigue life) material Stainless Steel 304. Kata kunci: fatigue rotary, tumpuan tetap, tumpuan gulir, Stainless Steel 304
IoT-Based LPG Gas Leak Detection System for Real-Time Household Safety Monitoring Integrated with Telegram Bot Notifications Afiyat, Nur; Pramartaningthyas, Ellys Kumala; Prasetyo, Arif
G-Tech: Jurnal Teknologi Terapan Vol 10 No 1 (2026): G-Tech, Vol. 10 No. 1 January 2026
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/g-tech.v10i1.8650

Abstract

Liquefied Petroleum Gas (LPG) is widely utilized as a primary energy source in household and industrial applications. However, gas leakage remains a major safety concern that can lead to fire or explosion hazards. This study presents the design and implementation of an Internet of Things (IoT)-based LPG leakage detection system equipped with real-time alert notifications via the Telegram application to enhance household safety. The proposed system integrates a NodeMCU V3 ESP8266 microcontroller programmed using the Arduino IDE and an MQ-2 gas sensor capable of detecting gas concentrations between 300 and 10,000 ppm. Performance evaluation was conducted through experimental testing that measured key parameters such as gas concentration detection accuracy, system response time, and data transmission latency. When the detected gas concentration exceeds the threshold of 300 ppm, the system automatically transmits an alert message to the user’s smartphone through Telegram. The results show that the system effectively detects gas leakage events with an average response time of 23.018 seconds and an average data transmission delay of 265.76 milliseconds, remaining below the 300-millisecond standard. The novelty of this research lies in the integration of IoT-based gas monitoring with real-time Telegram bot notifications optimized for household environments, offering a more responsive and user-friendly solution compared to previous detection systems. These findings demonstrate that the developed system provides an effective and reliable approach for early detection and prevention of LPG gas leak hazards.
Co-Authors Afiyat, Nur Alimin Alimin, Alimin Arif Prasetyo, Arif Hariyadi, Mohammad Lostari, Aini Ma'shumah, Siti Mahmudah, Ratna Sri Ma’shumah, Siti Miftahul Ulum Miftahul Ulum Rokhim, A Ghofurur Salam, Mohammad Fikri Abdullah Sugiono, Didik Supardi Supardi Talifatim Machfuroh, Talifatim Taufiqur Rohman Umi Kulsum Wardani, Happy Kusuma Yudi Hartono, Yudi