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All Journal JET (Journal of Electrical Technology) Electron: Jurnal Ilmiah Teknik Elektro Electrician : Jurnal Rekayasa dan Teknologi Elektro
Hikmatullah, Muhammad Rizky
Unknown Affiliation
Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering

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Perancangan Monitoring Suhu dan Kelembaban pada Kumbung Jamur Berbasis Internet of Things Andre, Hanalde; Pratama, Faldo Demi; Pahlevi, Moh Reza; Afif, Muhammad; Fitri, Suci; Pratama, Rizki Wahyu; Hikmatullah, Muhammad Rizky
ELECTRON Jurnal Ilmiah Teknik Elektro Vol 3 No 1: Jurnal Electron, Mei 2022
Publisher : Jurusan Teknik Elektro Fakultas Teknik Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/electron.v3i1.14

Abstract

Oyster mushroom cultivation is very popular among rural and urban communities, both on a small, medium and industrial scale. Oyster mushroom cultivation requires controlling temperature and humidity in mushroom kumbung to get optimal mushroom body growth. In the fruiting body formation phase requires a temperature between 27⁰C-29⁰C with humidity between 70%RH-90%RH. Along with the rapid development of technology, currently monitoring and controlling temperature and humidity can be done automatically remotely using the NodeMCU ESP8266 based on the Internet of Things. Measurement of temperature and humidity using the DHT22 sensor. The acquisition of measurement data is sent to the ANTARES platform using an internet-connected ESP8266. Monitoring temperature and humidity can be seen on ANTARES. Temperature and humidity control using a 12 Volt DC water pump. When the measurement results exceed the desired temperature range and the humidity is less than the desired range, the pump will turn on to stabilize the temperature and humidity again. From the results of testing the tool, it is obtained that the appropriate measurement results are obtained and the pump also turns on if the temperature and humidity are not as desired.
Evaluasi Mutual Coupling pada Antena Vivaldi Antipodal untuk Aplikasi Ground Penetrating Radar (GPR) Novalia Pertiwi; Candra, Rifqi Dwi; Ardilla, Septiya; Ramadhan, muhammad; Hasim, sitronella Nurfitriani; Nurcahyo, Aji Pamungkas Tri; Pinangkis, Anggrit Dewangkara Yudha; Hikmatullah, Muhammad Rizky; Nurhayati, Nurhayati
Electrician : Jurnal Rekayasa dan Teknologi Elektro Vol. 19 No. 2 (2025)
Publisher : Department of Electrical Engineering, Faculty of Engineering, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/elc.v19n2.2818

Abstract

Deficit Threshold Optimization of an Automatic Transfer Switch for Hybrid Grid-Photovoltaic Systems in Tropical Climates Baqaruzi, Syamsyarief; Nandar, Cuk Supriyadi Ali; Muhtar, Ali; Hikmatullah, Muhammad Rizky; Rosmin, Norzanah
JET (Journal of Electrical Technology) Vol 11, No 1 (2026): EDISI FEBRUARI
Publisher : Universitas Islam Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30743/jet.v11i1.13295

Abstract

The rising demand for dependable power supply in tropical areas, characterized by frequent grid instability, requires the use of automated transfer switches (ATS) in hybrid photovoltaic (PV)-grid systems. This study assesses the efficacy of an Arduino Mega 2560-based Automated Testing System (ATS) coupled with a 100 Wp polycrystalline photovoltaic panel and a 12 V 100 Ah battery in the tropical climate of Lampung, Indonesia, over a span of 15 consecutive days in January. The process encompasses hardware design, the construction of a control algorithm based on a multi-objective cost function incorporating risk factors, field data gathering, and MATLAB simulation. The findings indicate that the system attains 80% grid independence based on day count and exceeds 95% based on total energy, accompanied with a minimal switching frequency of 0.2 occurrences per day, signifying stable operation devoid of chattering. A significant contribution is the optimization of the shortfall threshold: adjusting the threshold from 0 Wh to –10 Wh decreases grid reliance from three days to one day, enhancing PV utilization from 80% to 93.3% without adding battery capacity. The relationship between irradiance and photovoltaic energy is robust (r = 0.94, R² = 0.88), with an average system efficiency of 10.04%, which is plausible for polycrystalline panels in hot, humid environments, including cable, inverter, and heat losses. The boxplot analysis verifies the absence of overlap between energy balances on photovoltaic days and grid days, hence affirming the reliability of ATS judgments. In conclusion, the suggested ATS featuring an adjustable deficit threshold is an economical and dependable option for telecommunication infrastructure in tropical developing areas.
Co-Authors Ardilla, Septiya Baqaruzi, Syamsyarief Candra, Rifqi Dwi Fitri, Suci Hanalde Andre Hasim, Sitronella Nurfitriani Muhammad Afif Muhammad Ramadhan Muhtar, Ali Nandar, Cuk Supriyadi Ali Novalia Pertiwi Nurcahyo, Aji Pamungkas Tri Nurhayati Nurhayati Pahlevi, Moh Reza Pinangkis, Anggrit Dewangkara Yudha Pratama, Faldo Demi Pratama, Rizki Wahyu Rosmin, Norzanah