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All Journal Jurnal SPEKTRUM Majalah Ilmiah Teknologi Elektro Jurnal EECCIS International Journal of Engineering and Emerging Technology Majalah Ilmiah Teknologi Elektro
Pratolo Rahardjo
Department Of Electrical Engineering, Faculty Of Engineering, Udayana University
Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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RANCANG BANGUN PROTOTIPE PERANGKAT KERAS ELECTRIC VEHICLE SUPPLY EQUIPMENT MENGGUNAKAN PROTOKOL SAE J1772 Liwa Purnadita, Putu Tesa; Rahardjo, Pratolo; Raka Agung, I G A Putu
Jurnal SPEKTRUM Vol 11 No 2 (2024): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

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Abstract

The existence of Public Electric Vehicle Charging Stations (SPKLU) is increasing alongside the rise in electric vehicle usage in a certain area. EVCS is equipped with devices that directly interact with electric vehicles (EVs) during charging; this device is called Electric Vehicle Supply Equipment (EVSE). Both EVSE and EV require protocols to communicate with each other aimed at exchanging information such as readiness for charging between EVSE and EV. The communication protocol used in this research is the SAE J1772 protocol. This study focuses on designing a hardware prototype of EVSE based on the principles of the J1772 AC Type 1 connector as the transmission medium to electric vehicles (EVs). The design of EVSE communication simulation uses the Falstad Circuit Simulator platform, and the PCB layout design uses the EasyEDA platform. The hardware prototype of EVSE is controlled using a Raspberry Pi 3B mini PC as the core management, then integrated with the initial terminal block, power supply block, PZEM-004T sensor module, J1772 communication block, 2-channel solid-state relay (SSR) module, and J1772 terminal.
RANCANG BANGUN MODUL TRAINER KIT MATA KULIAH SISTEM KENDALI+LAB BERBASIS INTERNET OF THINGS (IoT) Hernandi, William; Rahardjo, Pratolo; Alit Swamardika, Ida Bagus; Divayana, Yoga; Oka Saputra, Komang
Jurnal SPEKTRUM Vol 11 No 2 (2024): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

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Abstract

Along with the development of technology, control systems can now control various devices using smartphones connected to the internet remotely (Internet of Things). In order to have a good understanding of this field, universities have a very important role as an education institution. One of them is Udayana University through the Control System + Lab Course in the Independent Campus Learning Curriculum. This study aims to design an IoT-based Lab + Control System Trainer Kit Module using DevKit ESP32. The designed system includes an IoT-based DC motor control system using an L298N motor driver, an IoT-based water cooling control system using a DS18B20 temperature sensor, and an IoT-based water level control system using an HC-SR04 ultrasonic sensor. The system will be controlled through an application that has been created and installed on a smartphone connected to the internet so that it can be tested and analyzed to draw conclusions.
RANCANG BANGUN SISTEM PENJADWALAN DAN KONTROL KANDANG KELINCI BERBASIS INTERNET OF THINGS Alie Sulthan, Mayben Sayyidina; Divayana, Yoga; Rahardjo, Pratolo
Jurnal SPEKTRUM Vol 10 No 4 (2023): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/SPEKTRUM.2023.v10.i04.p29

Abstract

These days technology has developed rapidly, almost covering all aspects in humas life for example is automation system. The automation system works without human intervension and complete all works independently. Existing technology can already be connected to each other via the internet network so that it can transmit or receive data automatically. The Internet of Things (IoT) can support automated systems by providing real-time information so that users can monitor the performance of these automated systems. This research was to develop rabbit cage by utilizing microcontroller as monitoring system. The system utilizing Internet of Things (IoT) as monitoring medium between users and devices to help users monitor their rabbit cage remotely. The design installed several sensors such as ultrasonic, temperature, load cell sensors, DS18B20 and water level sensors. This research used Arduino Mega 2560 as main microcontroller and NodeMCU ESP8266 as communication device between the tools and database. The tools use android application on user smartphone that fuctions real time monitoring for the cage. Based on the results of this research by using Arduino Mega as microcontroller board to controlling and monitoring rabbit’s cage has succesfully in monitoring the cage via internet through the NodeMCU ESP8266 intermediary according to the design.
RANCANG BANGUN SISTEM WEB PADA PROTOTYPE STASIUN PENGISIAN KENDARAAN LISTRIK Agustadewa, Yosia; Rahardjo, Pratolo; Duta Nugraha, I Putu Elba
Jurnal SPEKTRUM Vol 11 No 2 (2024): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

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Abstract

In 2023, sales of electric cars in Indonesia experienced a significant increase, reaching 10,327 units when compared to sales in 2021. The existence of electric vehicles requires supporting facilities for the existence of electric vehicles called charging stations. So that users can charge their electric vehicles, a system is needed that can control and monitor the charging of electric vehicles via the web. Web design using Next.js framework on the frontend and Go language on the backend. The web can start charging, stop charging, and display charging data graphs in real time. Web system testing on prototype charging station using BlackBox testing method and obtained eight valid test items.
RANCANG BANGUN ALAT UJI PERIFERAL ESP32 DEVKIT V1 - DOIT 30 PIN Adrian Pramuditya, I Made; Raka Agung, I Gusti Agung Pt; Rahardjo, Pratolo
Jurnal SPEKTRUM Vol 10 No 4 (2023): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/SPEKTRUM.2023.v10.i04.p39

Abstract

The ESP32 DEVKIT V1 - DOIT 30 Pin Peripheral Board Test Tool is a module that can be used to test the ESP32 DEVKIT V1 - DOIT 30 Pin microcontroller board. The chip of the board is ESP32 developed by Espressif Systems. ESP32 has many features or peripherals that can be used in various projects. Built-in Internet of things (IoT) is one of the leading features that can connect the board to the internet without the need for additional modules from outside. Features or peripherals that can be tested on the ESP32 DEVKIT V1 - DOIT 30 Pin Peripheral Board Test Tool, are digital i/o, ADC & DAC, dual core system, built-in touch sensor, built-n hall sensor, Bluetooth, and Wi-Fi.
RANCANG BANGUN MODUL TRAINER KIT SISTEM KENDALI BERBASIS DIGITAL Indra Christian, Febry; Rahardjo, Pratolo; Alit Swamardika, Ida Bagus; Divayana, Yoga; Oka Saputra, Komang; Elba Duta Nugraha, I Putu
Jurnal SPEKTRUM Vol 11 No 2 (2024): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

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Abstract

A control system is defined as a combination of several components that aim to produce a system response in accordance with the desired process variables. Therefore, control systems are now widely used in various fields such as industry, automotive, public facilities, and household appliances. Especially in the industrial field, control systems play a role in improving production quality and reducing production costs. To create qualified human resources who have a good understanding in this field, universities have an important role in realizing this. One of them is Udayana University through the Electrical Engineering Study Program in the Independent Learning Curriculum in the Control System + Lab Course. This study aims to design a Digital-Based Control System + Lab Trainer Kit Module using Arduio Uno to support the process of implementing practicum in the laboratory. In the trainer kit module, there will be three systems designed, which are DC motor direction and speed control system using L298N motor driver, water heater control system using DS18B20 temperature sensor, and also water level control system using HC-SR04 ultrasonic sensor.
SISTEM PENGENDALI TEMPERATUR UNTUK PROSES PASTEURISASI ALAT-ALAT MEDIS Pratolo Rahardjo
Jurnal Teknologi Elektro Vol 9, No 1 (2010): (January - June) Majalah Ilmiah Teknologi Elektro
Publisher : Program Studi Magister Teknik Elektro Universitas Udayana

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Abstract

Penelitian ini bertujuan untuk merancang dan membuat sebuah prototipe alat pengendali temperatur untukproses pasteurisasi alat-alat medis. Alat-alat medis yang ada di laboratorium medis, poliklinik, ataupun rumah sakit,pada umumnya terbuat dari kaca atau logam. Sebelum dan setelah digunakan untuk bekerja, alat-alat medis ini harusdisucihamakan atau disterilkan dari berbagai macam bakteri atau mikroorganisme. Proses pensterilan yangditerapkan adalah proses pasteurisasi. Pada proses pasteurisasi ini, metode yang digunakan adalah pemanasan alatalatmedis dengan temperatur tinggi dan waktu lama (High Temperature Long Time, HTLT), serta alat-alat medisdipanaskan dengan temperatur rendah dan waktu lama (Low Temperature Long Time, LTLT).Pasteurisasi dengan suhu HTLT dilakukan dengan cara pemanasan alat-alat medis selama 20 menit padatemperatur 85 – 100°C dengan menggunakan pemanas (heater). Sedangkan pasteurisasi dengan LTL dilakukandengan cara proses pemanasan alat-alat medis pada temperatur jauh di bawah 85°C selama 10 menit.Pada penelitian ini dilakukan pembuatan prototipe sistem pengendali temperatur pada proses pasteurisasi alatalatmedis. Metode yang digunakan dalam penelitian ini adalah rancang-bangun alat atau sistem. Bagian-bagiansistem pengendali temperatur pada proses pasteurisasi alat-alat medis ini terdiri atas dua bagian, yaitu rangkaianutama dan rangkaian pelengkap. Rangkaian utama terdiri atas rangkaian sensor temperatur, rangkaian komparator,dan rangkaian saklar transistor dan relay, rangkaian ADC, rangkaian BCD ke SSD. Rangkaian pelengkap terdiri atasrangkaian pewaktu, rangkaian pengendali pemanas. Dengan adanya sistem pengendali ini, akan terwujud suatu alatyang murah, mudah pengoperasian, dan handal untuk proses pasteurisasi alat-alat medis, sehingga para tenaga medisdapat bekerja secara lebih efektif dan efisien. Penelitian ini mengambil lokasi di Laboratorium Elektronika, JTE FTUNUD.Beberapa kelemahan sistem pengendali temperatur pada proses pasteurisasi alat-alat medis ini antara lain :tidak dapat digunakan sebagai sistem pengendali temperatur di bawah 0 °C, tidak dapat digunakan untukmengendalikan beberapa variabel temperatur masukan, dan tidak dapat dikendalikan secara jarak jauh dengan tanpakabel (wireless remote control). Diharapkan pada penelitian berikutnya, beberapa kelemahan tersebut dapat diatasidengan baik.
ALAT PENJADWAL ON-OFF TITIK BEBAN RUMAH TANGGA YANG DIAKSES DENGAN TELEPON DTMF Pratolo Rahardjo
Jurnal Teknologi Elektro Vol 8 No 2 (2009): (July - December) Majalah Ilmiah Teknologi Elektro
Publisher : Program Studi Magister Teknik Elektro Universitas Udayana

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Abstract

Penelitian ini bertujuan untuk merancang dan membuat suatu alat penjadwal on-off titik beban rumah tangga yang terkendali jarak jauh dengan menggunakan saluran telepon. Alat ini berguna bagi rumah tangga yang penghuninya mempunyai mobilitas keluar daerah yang tinggi. Sehingga mengurangi rasa khawatir terhadap rumahnya yang ditinggalkan, baik terhadap pencurian, pemborosan daya listrik, kerusakan alat-alat elektronik ataupun menghindari kelembaban. Penggunaan listrik di rumah tangga dapat dioptimalkan sebaik mungkin. Dalam penelitian ini, metode yang digunakan adalah rancang-bangun, yang diawali dengan studi pustaka dan simulasi perangkat lunak terlebih dahulu. Penelitian ini mengambil lokasi di Laboratorium Elektronika, Jurusan Teknik Elektro FT. UNUD. Alat penjadwal on-off titik beban rumah tangga ini masih mempunyai beberapa kelemahan, antara lain : kapasitas jumlah titik beban yang terbatas (8 buah), tidak adanya backreport lagi untuk kondisi suatu titik beban kepada pengirim atau pengendali, dan alat ini tergantung kepada suatu provider jaringan telekomunikasi. Diharapkan pada penelitian berikutnya, ketiga kelemahan tersebut dapat diselesaikan dengan baik.
Modifikasi Handy Talky (HT) Sebagai Telealarm Pengaman Benda – Benda Suci Pratima Di Pura Dari Tindakan Pencurian I Made Anand Gopal; Pratolo Rahardjo; Lie Jasa
Jurnal Teknologi Elektro Vol 16 No 1 (2017): (January - April) Majalah Ilmiah Teknologi Elektro
Publisher : Program Studi Magister Teknik Elektro Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/MITE.1601.02

Abstract

The Criminal acts of stealing sacred objects Pratima in Bali becoming more frequent, so that the required modern electronic security system that is expected to facilitate the public in improving security the sacred objects which are in the temple area from the thieves. Then needed a safety telealarm of Pratima. The safety telealarm consist of four sensors, namely: a touch sensor, light sensor, dark sensor and IR LED sensor. And also used Handy talky (HT) redell DL-5108 which has been modified as transmitter, which directly connected to the Handy Talky (HT) of the village security officer, so that the safety of sacred objects Pratima can be kept more stringent. Keyword: Telealarm, Pratima, Handy Talky, sensor DOI: 10.24843/MITE.1601.02
Rancang Bangun Alat Otomatisasi Mantram Puja Trisandya Menggunakan Mikrokontroler ATMEGA328 I Nengah Raka Utama; I Gusti Agung Putu Raka Agung; pratolo rahardjo
Jurnal Teknologi Elektro Vol 17 No 1 (2018): (Januari - April) Majalah Ilmiah Teknologi Elektro
Publisher : Program Studi Magister Teknik Elektro Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/MITE.2018.v17i01.P11

Abstract

Pengucapan Mantram Puja Trisandya dilaksanakan tiga kali sehari secara rutin oleh umat Hindu di Bali. Biasanya pengucapan memakai peralatan Elektronika dilengkapi dengan pengeras suara dan dioperasikan oleh operator secara manual. Dengan Kemajuan teknologi, aktivitas ini bisa digantikan menggunakan timer RTC yang dikendalikan dengan mikrokontroler. Perancangan rangkaiannya meliputi : Perancangan rangkaian mikrokontroler, Display, Mini MP3 Player, Keypad, Audio , dan Power Supply. Perancangan ini akan direalisasikan sehingga bisa dilakukan pengujian secara nyata. Alat ini berkerja secara otomatis dengan membandingkan jam sekarang dengan waktu pemutaran puja trisandya, apabila terjadi kecocokan data, maka mikrokontroler akan mengirimkan perintah kepada Mini MP3 Player untuk memutar file rekaman Mantram Puja Trisandya yang telah tersimpan pada mikro SD. Dari hasil penelitian didapat LCD (M1602A) mampu menampilkan huruf sesuai dengan kata-kata Mantram Puja Trisandya yang merupakan keluaran dari Mini Mp3Player dengan tepat waktu. dimana seluruh rangkaian dikendalikan dengan mikrokontroler ATmega328.
Co-Authors Adrian Pramuditya, I Made Agustadewa, Yosia Alie Sulthan, Mayben Sayyidina Alif Rizqian Aki Arya Sukma Krisnayoga D M Baskara Puruhita Wija Efina Marianis Elba Duta Nugraha, I Putu Gea, Susi Susanti Gede Prananda Putra Gede Widi Kurniawan Hernandi, William Hindro Kusumo Wahid I Gede Agus Darmawan I Gede Feryanda Frasiska I Gede Hery Putrawan I Gede Yogi Astawan I Gst Agung Putu Raka Agung I Made Adi Wijaya I Made Anand Gopal I Made Nova Suardiana I Nengah Raka Utama I Nyoman Budiastra I Putu Agus Padma Diana I Putu Elba Duta Nugraha I Putu Elba Duta Nugraha, I Putu Elba I Putu Nugraha I Putu Pawesi Siantika I Wayan Yoga Widiana Ida Bagus A. Swamardika Indra Christian, Febry Kadek Bintang Anjasmara Komang Agus Werdi Darmayasa Komang Edy Surya Prabowo Komang Oka Saputra Langit, Sekar Lie Jasa Lindu Pamungkas Liwa Purnadita, Putu Tesa Made Bayu Pranata Mudjirahardjo, Panca Muhammad Abdul Hadi Nugraha, I Putu Elba Duta Obed Bettuang Oka Saputra, Komang Pande Made Agus Yudi Adnyana Pande Made Nova Paramarta Putu Althea Putri Wiradani Putu Arya Mertasana Raka Agung, I G A Putu Raka Agung, I Gusti Agung Pt Rizki Pradana Putra Sekar Langit Susi Susanti Gea Tander Risard Lowongan Yoga Divayana