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All Journal JOIV : International Journal on Informatics Visualization INTECOMS: Journal of Information Technology and Computer Science Dielektrika : Jurnal Ilmiah Kajian Teori dan Aplikasi Teknik Elektro INFOKUM Jurnal Bakti Nusa Jurnal Rekayasa elektrika Jurnal Pengabdian Inovasi Masyarakat Indonesia JEITECH (JOURNAL OF ELECTRICAL ENGINEERING AND INFORMATION TECHNOLOGY)
Budi Darmawan
Universitas Mataram
Agriculture, Biological Sciences & Forestry Humanities Chemistry Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Languange, Linguistic, Communication & Media Library & Information Science Social Sciences Other

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INSTALASI CATU DAYA CADANGAN BERBASIS UNINTERUPTABLE POWER SUPPLY (UPS) PADA GEDUNG SEKOLAH/MADRASAH Warindi Warindi; Budi Darmawan; Cahyo Mustiko; Suthami Ariessaputra; Syafaruddin Syafaruddin
Jurnal Bakti Nusa Vol. 2 No. 2 (2021): JURNAL BAKTI NUSA
Publisher : Jurusan Teknik Elektro Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/baktinusa.v2i2.35

Abstract

Gedung Madrasah Tsanawiyah (MTs) Al Mubasysyirun yang berlokasi di Pemenang Timur, Kabupaten Lombok Utara, Nusa Tenggara Barat merupakan salah satu bangunan terdampak gempa bumi Lombok yang terjadi pada bulan Agustus 2018 silam. Akibat gempa tersebut hampir seluruh bangunan madrasah rusak berat. Setelah masa tanggap darurat selesai gedung madrasah dibangun kembali. Termasuk listrik yang disuplai oleh PLN. Namun dalam hal penyediaan listrik masih terdapat kekurangan yaitu kurangnya kontinuitas pelayanan, dimana seringnya terjadi pemadaman listrik. sementara kegiatan belajar mengajar di madrasah sedang berlangsung sehingga dirasa cukup mengganggu. Selain itu MTs juga berencana mengikuti ujian nasional berbasis komputer sehingga pasokan listrik ketika ujian tidak boleh terhenti. Masalah ketidaksinambungan pasokan listrik PLN tersebut perlu diatasi melalui penyediaan suatu sumber listrik cadangan yang akan menggantikan pasokan listrik ketika PLN padam. Listrik cadangan yang yang diusulkan adalah berbasis Unintruptable Power Supply (UPS) yang mempunyai berbagai kelebihan. Kelebihan tersebut adalah waktu pindah yang cepat dan lebih senyap. Sistem UPS tersebut, terdiri dari serangkaian baterai/aki, inverter dan pengisi baterai. Ketika listrik PLN dalam kondisi menyala, maka sebagian energi listrik disimpan dalam baterai melalui suatu modul pengisi baterai. Ketika listrik dari PLN padam, energi listrik yang tersimpan dalam baterai tersebut akan disalurkan ke beban melalui suatu mekanisme saklar pindah. Dengan kata lain beban yang sebelumnya disangga oleh listrik PLN akan segera dipindah dan disangga oleh UPS ketika listrik PLN padam. Berbagai macam cara instalasi UPS yang paling umum adalah UPS dihubungkan ke salah satu stop kontak. Namun cara ini hanya efektif bila beban yang disangga hanya sedikit, misalnya 1 buah komputer. Untuk sekala beban yang lebih luas yaitu seluruh beban di gedung sekolah maka UPS perlu dipasang di tiap sentral listrik (papan hubung bagi). Oleh sebab itu umumnya perlu modifikasi jaringan kelistrikan suatu gedung sekolah. Adapun hal-hal yang perlu diperhatikan dalam penentuan lokasi UPS: 1) kedekatan dengan sentral/MCB 2) sirkulasi udara 3) keamanan. Dari Uji coba, didapatkan bahwa sistem UPS yang telah dipasang memenuhi beberapa kriteria yang diharapkan antara lain: 1) kemudahan perawatan 2) kemudahan pemasangan 3) memenuhi standar keamanan dan 4) biaya instalasi murah. Manfaat kegiatan PPM diantarannya: 1) mitra mendapatkan sumber listrik cadangan yang bermanfaat bilamana listrik PLN padam, khususnya untuk  persiapan ujian yang berbasis komputer 2) menghemat biaya pembelian BBM dan perawatan daripada menggunakan genset 3) mendapatkan sumber listrik cadangan yang senyap dan tidak mengganggu aktifitas belajar mengajar.
PROTOTYPE OF ELECTRONIC EQUIPMENT CONTROL SYSTEM BASED ON INTERNET OF THINGS (IOT) Suthami Ariessaputra; Muhammad Juaeni; Budi Darmawan
INFOKUM Vol. 10 No. 4 (2022): October, computer, information and engineering
Publisher : Sean Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (217.08 KB)

Abstract

Every household has several electronic devices, such as lights, fans, water heaters, and other devices. However, most of these devices cannot be accessed and controlled at all times remotely. One way to access and control it is to use the internet to access it anywhere and anytime. The design and manufacture of this prototype are done by inputting data into the Blynk application on an Android smartphone. The inputted data is in the form of serial data, sent to the NodeMCU V3 microcontroller, then translated into parallel data, and then forwarded to a relay with an LED indicator that shows the condition of the electronic equipment. The relay will execute data from NodeMCU V3 to turn on or turn off electronic equipment. The system is capable of working with hotspot connectivity with NodeMCU V3 connected at a maximum distance of 12 m in a closed room and 17 m in an open space. Based on testing from five different locations, the system could remotely control the lights, fans, and water heaters. In testing the delay of electronic equipment, the average delay value is 2.8 seconds.
Mangosteen Flesh Condition Detector Based on Microwave Non-destructive Technique Using Spiral Resonator Sensor’s Cahyo Mustiko Okta Muvianto; Muhammad Afrizal G. Rasyda; Suthami Ariessaputra; Kurniawan Yuniarto; Sudi Mariyanto Al Sasongko; Budi Darmawan; Syafaruddin Ch
Jurnal Rekayasa Elektrika Vol 18, No 1 (2022)
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (822.664 KB) | DOI: 10.17529/jre.v18i1.23761

Abstract

The mangosteen fruit has a characteristic thick skin, so it is difficult to know the condition of the flesh. Farmer can only know damage to the fruit flesh after the fruit skin had opened. Detection of the quality of the mangosteen flesh can be detected using a sensor capable of penetrating the thickness of the mangosteen rind. Flesh quality detection is carried out based on the S21 value (attenuation of mangosteen flesh value) using a portable device equipped with a sensor and capable of emitting microwaves. The S21 value of the fruit's flesh was measured using a spiral resonator that functioned as a sensor. The prototype device consists of an oscillator circuit, a power splitter, and a phase detector with 2507 MHz. Fruit flesh had divided into two conditions: damaged for fruit flesh with yellow sap or Translucent Flesh Disorder, and suitable condition for clean fruit flesh. The results showed that the fruit flesh had an average S21 value of 7.041 dB for damaged flesh and 6.007 dB for good flesh condition. The difference in the value of S21 had used as a reference for detecting the shape of the fruit flesh, with the detection threshold calculated by the Support Vector Machine, resulting in a threshold value of 6.712 dB.
Instalasi Repeater Seluler di Desa Pengengat Kecamatan Pujut Kabupaten Lombok Tengah Suthami Ariessaputra; Cahyo Mustiko Okta Muvianto; Budi Darmawan; warindi warindi; Syafaruddin Ch
Jurnal Pengabdian Inovasi Masyarakat Indonesia Vol. 2 No. 1 (2023): Edisi Februari
Publisher : Program Studi Pendidikan Kimia FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (782.444 KB) | DOI: 10.29303/jpimi.v2i1.1829

Abstract

Handphone menjadi perangkat yang banyak digunakan oleh masyarakat untuk menunjang kegiatan sehari-hari. Kegiatan tersebut meliputi pendidikan, ekonomi, hiburan, sosial maupun kegiatan keagamaan. Handphone dapat digunakan dengan baik apabila didukung oleh sarana infrastruktur termasuk tersedianya tower BTS (Base Transceiver Station). BTS ini berfungsi sebagai tranceiver yaitu dapat memancarkan sinyal (transmitter) dan menerima sinyal (Receiver). Penetuan lokasi BTS dipengaruhi oleh beberapa hal, antara lain: jangkauan, jumlah penduduk dan demand. Desa Pengengat berada di lingkar Kawasan Ekonomi Khusus (KEK) Mandalika masih terdapat beberapa titik yang tidak terjangkau oleh sinyal handphone. Hal ini di sebabkan kondisi geografis desa pengengat yang berbukit-bukit yang mengakibatkan sinyal seluler yang dipancarakan dapat terpantul dan terbias. Kondisi ini menyebabkan sinyal menjadi lemah dan menyebabkan beberapa titik area menjadi blankspot. Kegiatan Pengabdian ini mampu memberikan solusi berupa peningkatkan kualitas Sinyal yang sebelumnya sebesar satu bar menjadi lima bar. Pengujian menggunakan panggilan telepon menunjukkan kualita susarayang bagus. Pengujian kualitas internet menunjukkan kualitas suara dan gambar video yang baik. Kemudian dilanjutkan dengan kegiatan pelatihan penggunaan dan perawatan peralatan repeater kepada warga dan pemuda Karang Taruna Dusun Papak Desa Pengengat Kabupaten Lombok Tengah.
Rancang Bangun Hot Plate Magnetic Stirrer Berbasis Mikrokontroler budi darmawan; Suthami Ariessaputra; Muhammad Alfarizi Putra
DIELEKTRIKA Vol 10 No 2 (2023): DIELEKTRIKA
Publisher : Jurusan Teknik Elektro Fakultas Teknik Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/dielektrika.v10i2.344

Abstract

Chemical laboratories require additional equipment that is used as a mixer into the solution or chemical to be studied. The mechanism that is often used to accelerate the process of dissolving or mixing chemicals is heating and stirring. In addition to dissolving faster, the resulting solution will also be more homogeneous. In this research a Hot Plate Magnetic Stirrer was designed and manufactured by setting the time, temperature and stirring speed via a keypad so that accurate time, temperature and speed were obtained. The Hot Plate Magnetic Stirrer made in this study uses an infrared sensor to detect the speed of stirring, and an NTC 3950 sensor which is immersed in the solution to detect the temperature of the solution during stirring. The Hot Plate Magnetic Stirrer tool that has been made can run as expected. In the stirring time test, the system will work according to the input time. In testing the stirring temperature the system can maintain the stability of the solution temperature as desired with a maximum temperature of 110˚C. In the stirring speed test, the maximum speed of stirring was obtained, namely 1500 RPM when stirring using a beaker glass with a diameter of 6 cm and a bar magnet length of 4 cm.
PEMBUATAN DAN INSTALASI INVERTER OTOMATIS SEBAGAI LISTRIK CADANGAN UNTUK MUSHOLLA AL HUDA Budi Darmawan; , Cahyo Mustiko Okta Muvianto; Suthami Ariessaputra; Syafaruddin Ch
Jurnal Bakti Nusa Vol. 4 No. 2 (2023): Jurnal Bakti Nusa
Publisher : Jurusan Teknik Elektro Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/baktinusa.v4i2.69

Abstract

Mushalla Al-Huda di Dusun Kapek Atas, Desa Gunungsari, Kecamatan Gunungsari, Kabupaten Lombok Barat menawarkan berbagai kegiatan seperti pengajian rutin, membaca dan menghafal Al-Quran dan masih banyak kegiatan sosial lainnya yang membutuhkan listrik untuk mendukung operasionalnya. Mushalla Al-Huda hanya menggunakan listrik dari jaringan PLN dan belum memiliki sistem listrik cadangan. Artinya, jika aliran listrik dari jaringan PLN padam, maka kegiatan diliburkan. Untuk mengatasi kondisi tersebut, pada kegiatan pengabdian ini dilakukan instalasi inverter otomatis sebagai sumber listrik cadangan. Kegiatan pengabdian ini diawali dengan pemasangan inverter otomatis yang telah selesai dilaksanakan pada 27 September 2018. Selanjutnya pada 13 November 2018, dilaksanakan pelatihan penggunaan inverter yang diikuti oleh jamaah di mushalla Al-Huda. Inverter yang telah dipasang berfungsi dengan baik seperti yang diharapkan. Dengan terpasangnya inverter pada mushalla al-huda maka kegiatan rutin mushalla seperti pengajian, baca Al Quran dan hafalan yang biasanya diselenggarakan pada malam hari, dapat tetap berjalan dengan lancar walaupun terjadi pemadaman listrik PLN.
Rancang Bangun Sistem Pengaman dan Monitoring Kendaraan Bermotor Hoti Atabia; Syafaruddin Ch; Budi Darmawan; Paniran
JEITECH (JOURNAL OF ELECTRICAL ENGINEERING AND INFORMATION TECHNOLOGY) Vol. 1 No. 1 (2023): JUNI 2023
Publisher : Depertment of Electrical Engineering University of Mataram

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Abstract

Motorcycle security is still manual and without double safety. One solution is to install guards and trackers on motorcycles. In designing this system using Arduino uno as a controller, SIM800L GSM module as a communication medium via SMS and the U-Blox Neo 6MV2 GPS Module. When a motorcycle is stolen, the security system in the form of an alarm will sound and provide a notification of theft warning in the form of an SMS to the user. This tool can also turn off motorbikes remotely and is equipped with a motorcycle location tracking system via Google Maps. The results of testing the motorcycle tracking system obtained that the average response time of the system providing a reciprocal SMS link location when the user requests the location of the motorcycle is 19.55 seconds. Then the average error distance difference between the position of the actual coordinate point on Google Maps and the position of the coordinate point measured on GPS is 2.111602 meters.
Prototype Smart Home Dengan Konsep Internet Of Things Menggunakan Arduino Erlan Bahtiar; Budi Darmawan; Syafaruddin Ch; Sabar Nababan
JEITECH (JOURNAL OF ELECTRICAL ENGINEERING AND INFORMATION TECHNOLOGY) Vol. 1 No. 1 (2023): JUNI 2023
Publisher : Depertment of Electrical Engineering University of Mataram

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Abstract

Smart Home is a residence or dwelling where electrical appliances are connected to a communication network for control, monitoring, or remote access. One of the technologies used in creating a smart home is the Internet of Things (IoT). In this research, a prototype of a smart home was designed using the DHT11 Sensor and RFID (Radio Frequency Identification) Sensor. The controlled appliances include lights, fans, and a door lock. In the design of this IoT-based smart home, the results showed that the Internet of Things system functions optimally on the controlled hardware. The switching relay works well, where when the status in the application is ON, the lights will turn on, while when the status is OFF, the lights will turn off. In the automation of the DHT11 Sensor, when the room temperature exceeds 30°C, the fan will turn on, whereas if the room temperature is below 30°C, the fan will turn off. And in the automation of the RFID-RC522 Sensor, when a registered tag card is placed on the RFID reader, the door lock will open, but if an unregistered tag card is placed on the RFID reader, the door lock will remain locked.
Simulasi Sistem Monitoring Pasang Surut Air Laut Dan Peringatan Dini Tsunami Menggunakan Sensor Hc-Sr04: Simulation of Sea Water Tide Monitoring and Tsunami Early Warning System Using HC-SR04 Sensor Andi Restu; Djul Fikry Budiman; Budi Darmawan
JEITECH (JOURNAL OF ELECTRICAL ENGINEERING AND INFORMATION TECHNOLOGY) Vol. 1 No. 1 (2023): JUNI 2023
Publisher : Depertment of Electrical Engineering University of Mataram

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Abstract

The waters in the port of ships often experience slack and there is no adequate tsunami detector. In this thesis, a simulation tool for a tidal monitoring system and an Arduino Uno based tsunami early warning system is designed to measure water levels and send a tsunami early warning automatically via SMS to the user's phonecell. Based on the test results, the average value of the error percentage obtained is 4.49%, this indicates that the system is able to detect the water level quite well. Then in the speed of low tide, the system can detect the difference in the speed of receding water to the number of valves that are open, where when one faucet is opened the average receding speed is 0.077 cm/s, the receding speed when two faucets are opened is 0.1222 cm/s. and the receding speed of the water when the three taps are opened is 0.199 cm/s. Water level data, low tide speed and tsunami status conditions can be saved to a micro SD card in Txt format. And the system is able to send a tsunami early warning via SMS when the system detects the speed of low tide >= 0.18 cm/s.
Rancang Bangun Monitoring Dan Kontrol Suhu, Kelembaban, Dan Kadar Co2 Pada Ruangan Budidaya Jamur King Oyster (Pleurotus Eryngii) Berbasis IoT Nurfajrin; Budi Darmawan; Suthami Ariessaputra
JEITECH (JOURNAL OF ELECTRICAL ENGINEERING AND INFORMATION TECHNOLOGY) Vol. 1 No. 2 (2023): Edisi Oktober 2023
Publisher : Depertment of Electrical Engineering University of Mataram

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Abstract

Penelitian ini bertujuan meningkatkan efisiensi budidaya jamur King Oyster dengan memanfaatkan teknologi IoT. Sistem IoT telah diimplementasikan dengan mengintegrasikan sensor suhu, kelembaban, dan kadar Co2. Sensor DHT-11 dan MG-8266 ditempatkan di lingkungan budidaya jamur, lalu data yang diperoleh dikirimkan ke bot Telegram, memungkinkan pengguna memantau dan mengendalikan parameter lingkungan secara real-time. Seperti mengatur batas atas dan bawah suhu, kelembaban, dan kadar Co2. Hasil penelitian menunjukkan sistem ini efektif dalam memantau dan mengendalikan parameter lingkungan dengan akurat dan efisien. Integrasi bot Telegram memberikan fleksibilitas dalam mengakses data dan mengelola lingkungan budidaya dari jarak jauh. Penelitian ini berkontribusi pada pengembangan solusi berbasis IoT di bidang pertanian. Sistem ini diharapkan dapat membantu petani jamur King Oyster mencapai hasil yang optimal melalui pemantauan lingkungan yang cerdas.
Co-Authors Andi Restu Ariefudin Ariefudin Ariessaputra, Suthami Djul Fikry Budiman, Djul Fikry Erlan Bahtiar Febrian rizky Hoti Atabia Ilvina Sya'rani Kurniawan Yuniarto Lalu Thoriq Ramadhani Muhamad Kiflan Affandi Muhammad Afrizal G. Rasyda Muhammad Alfarizi Putra Muhammad Juaeni Muvianto, Cahyo Mustiko Okta Nababan, Sabar Nurfajrin Paniran Sabar Nababan Sahrul Sudi Mariyanto Al Sasongko Supriono Supriono Syafaruddin Ch Syafaruddin Syafaruddin Syafarudin Ch Viviana Herlita Vidiasari Warindi D