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<![CDATA[RANCANG BANGUN SCORING BOARD MENGGUNAKAN JOYSTICK BERBASIS ARDUINO YANG DIGUNAKAN PADA LATIH TANDING TAEKWONDO ]]>
<![CDATA[Komang Agus Werdi Darmayasa]]>;
<![CDATA[I Gusti Agung Putu Raka Agung]]>;
<![CDATA[Pratolo Rahardjo]]>
<![CDATA[ Jurnal SPEKTRUM Vol 5 No 2 (2018): Jurnal SPEKTRUM ]]>
Publisher : <![CDATA[Program Studi Teknik Elektro UNUD ]]>
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DOI: 10.24843/SPEKTRUM.2018.v05.i02.p35
<![CDATA[Taekwondo is one of the martial arts competitions competed in the Olympics. Taekwondo comes from Korea, Tae means "kicking or destroying with legs"; Kwon means "boxing"; and Do means "road" or "art". The taekwondo match is led by a referee and a judge who is responsible for giving scores to athletes who get points. During taekwondo match training, the assessment is still done in a manual way so that electronic score equipment is needed that is portable and easy to operate. Based on this, there is a desire to make electronic score equipment used for taekwondo match training by creating a scoring board using an Arduino-based joystick. The Arduino-based scoring board uses two PS3 sticks that are connected to Arduino wirelessly using Bluetooth and received by the joystick receiver. The display value of this match training will be displayed on the LED Matrix display in the form of numbers / scores. The time and the taekwondo match training round are displayed on the seven segment display and are set at the beginning of the practice match using a blue joystick. When the match time runs out, there will be a sound issued by the buzzer. From the research conducted, it is expected to be able to facilitate assessment when competing in taekwondo training.]]>
<![CDATA[RANCANG BANGUN VENDING MACHINE MENGGUNAKAN QR CODE BERBASIS MIKROKONTROLER ]]>
<![CDATA[Rizki Pradana Putra]]>;
<![CDATA[I Gusti Agung Pt Raka Agung]]>;
<![CDATA[Pratolo Rahardjo]]>
<![CDATA[ Jurnal SPEKTRUM Vol 6 No 2 (2019): Jurnal SPEKTRUM ]]>
Publisher : <![CDATA[Program Studi Teknik Elektro UNUD ]]>
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DOI: 10.24843/SPEKTRUM.2019.v06.i02.p15
<![CDATA[One of the technologies that continues to be developed today is automated system technology. An automatic system that has the potential to continue to develop in this modern era is the vending machine. Along with the development of technology, vending machines have begun to be developed using tags / RFID cards (Radio Frequency Identification) in lieu of paper money. The disadvantage of this system is the dependence of machine activation on an RFID tag / card that still has security risks. Therefore, a vending machine will be developed using QR (Quick Response) Code and integrated with an Android-based smartphone instead of RFID. The microcontroller based vending machine system uses a QR Code to work to serve drinks automatically after processing serial data sent by a smartphone through an application that has been designed with Bluetooth communication. Users can register an account on the application and fill in the balance to buy canned drinks at the vending machine.]]>
<![CDATA[RANCANG BANGUN ALAT PENGINGAT PENGGANTIAN WATER FILTER MC2 MEMANFAATKAN SMS BERBASIS MIKROKONTROLER ATMEGA-328 ]]>
<![CDATA[I Putu Nugraha]]>;
<![CDATA[I Gst.A.Putu Raka Agung]]>;
<![CDATA[Pratolo Rahardjo]]>
<![CDATA[ Jurnal SPEKTRUM Vol 3 No 2 (2016): Jurnal SPEKTRUM ]]>
Publisher : <![CDATA[Program Studi Teknik Elektro UNUD ]]>
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<![CDATA[Perusahaan produsen minuman, mengandalkan air sebagai bahan baku utama untuk memproduksi produknya. Untuk menjamin kualitas air yang digunakan, diperlukan saringan (filter) air yang dapat menangkap maupun menghilangkan kotoran dan bakteri-bakteri yang masih terkandung pada air. Seiring dengan pemakaian filter air secara terus menurus, maka diperlukan tindakan penggantian filter air secara berkala agar kualitas air yang dihasilkan tetap terjaga. Jika penggantian filter air tidak dilaksanakan, maka kerusakan pada mesin produksi minuman dapat terjadi. Untuk mengatasi masalah tersebut, telah dirancang dan direalisasikan suatu alat untuk mengingatkan penggantian water filter dengan memanfaatkan SMS berbasis mikrokontroler ATMEGA-328. Metode dalam pembuatan alat ini terdapat perangkat keras yang terdiri dari perangkat elektronika dan perancangan media filter air MC2. Perangkat lunak menggunakan bahasa C arduino. Perangkat elektronika water flow sensor dan water pump pressure switch dipasangkan pada jalur air media filter. Kapasitas pemakaian air yang telah melewati media filter air MC2 dibaca oleh water flow sensor dan tekanan airnya dibaca oleh water pump pressure switch. Hasil dari pembuatan alat ini ditandai dengan SMS peringatan yang dikirimkan ke nomor HP tujuan jika air yang melewati filter air MC2 sudah mencapai kapasitas kadaluarsanya dan jika tekanan air yang dihasilkan filter air MC2 sudah mengecil yang ditandai dengan alarm berupa buzzer.]]>
<![CDATA[RANCANG BANGUN MONITORING ENERGI LISTRIK MENGGUNAKAN SMS BERBASIS MIKROKONTROLER ATMEGA328 ]]>
<![CDATA[Raden Ajeng Gusti Ramadhianti]]>;
<![CDATA[Ir. Cok Gede Indra Partha]]>;
<![CDATA[I Gusti Agung Pt Raka Agung]]>
<![CDATA[ Jurnal SPEKTRUM Vol 5 No 1 (2018): Jurnal SPEKTRUM ]]>
Publisher : <![CDATA[Program Studi Teknik Elektro UNUD ]]>
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DOI: 10.24843/SPEKTRUM.2018.v05.i01.p19
<![CDATA[Customer PT. PLN (Persero) has been getting prepaid and postpaid electric service programs, on postpaid electricity PT. PLN is still using conventional ways to monitor the electricity consumption of its customers. PLN officers must record meters, calculate and publish accounts to be paid by customers. In this study using electrical energy monitoring system using SMS that can measure and monitor the use of electrical energy in real time, using the method of direct measurement. Results from the current sensor readings and voltage sensors will be forwarded to the microcontroller to be converted into the amount of electrical energy consumption and the amount of payment in accordance with tariffs that have been determined PLN. The research was conducted in Basic Laboratory of Electrical Engineering, Laboratory of Energy Conversion, Laboratory of Workshop & Electrical Installation, Electrical Engineering Study Program, Faculty of Engineering, Udayana University.]]>
<![CDATA[PROTOTIPE PEMBERI PAKAN IKAN DAN PENGGANTIAN AIR PADA AKUARIUM BERBASIS MIKROKONTROLER ATMEGA328P ]]>
<![CDATA[Anak Agung Arta Darmika]]>;
<![CDATA[I Gusti Agung Putu Raka Agung]]>;
<![CDATA[Yoga Divayana]]>
<![CDATA[ Jurnal SPEKTRUM Vol 6 No 2 (2019): Jurnal SPEKTRUM ]]>
Publisher : <![CDATA[Program Studi Teknik Elektro UNUD ]]>
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DOI: 10.24843/SPEKTRUM.2019.v06.i02.p11
<![CDATA[Technological developments have encouraged many human lives in automatic matters. One of the uses of the rapidly developing electronics field is the application of household appliances. This study will be made a prototype of fish feed and water replacement in the aquarium of ATmega328P microcontroller based. This prototype aims to facilitate feeding of fish and replacing water in the aquarium. The sensor reading is using an ultrasonic sensor to control the amount of fish feed which when the feed runs out will be marked with a buzzer that lights up. The system for regulating fish feeding and replacement of water is regulated by the DS1307 Real Time Clock IC with a display in a 20x4 cm LCD. A valve opening for fish feed containers uses a servo motor. The program used in designing this prototype is to use the C Programming Language. The results achieved in this study are fish feed schedules and water changes can be arranged with a switch button with a twice daily feeding schedule and water replacement every three days. Another condition that is achieved is the servo motor and the water drain pump can work according to the schedule of the time that has been arranged. The conclusion of this research is that the prototype of fish feed and water replacement can already be implemented using the ATmega328P microcontroller. The fish feeder prototype can realize wave reflections from the ultrasonic sensor when the feed has run out, and it will automatically move the servo motor to open the valve, and the buzzer will sound if the fish feed is below 20%.]]>
<![CDATA[RANCANG BANGUN KENDALI OTOMATIS LAMPU DAN PENDINGIN RUANGAN PADA RUANG PERKULIAHAN BERBASIS MIKROKONTROLER ARDUINO NANO ]]>
<![CDATA[I Wayan Yoga Widiana]]>;
<![CDATA[I Gusti Agung Putu Raka Agung]]>;
<![CDATA[Pratolo Rahardjo]]>
<![CDATA[ Jurnal SPEKTRUM Vol 6 No 2 (2019): Jurnal SPEKTRUM ]]>
Publisher : <![CDATA[Program Studi Teknik Elektro UNUD ]]>
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DOI: 10.24843/SPEKTRUM.2019.v06.i02.p16
<![CDATA[Automatic control technology for energy savings is no stranger to social life. Negligence in turning off lights and air conditioners in class is one example of the waste of electricity that occurs in school and campus institutions. By using the PIR (Passive Infra Red) sensor and LDR (Light Dependent Resistor) on the automatic control system of lights and air conditioners, it is expected to reduce excess electricity consumption. All uses of sensors are connected directly to Arduino Nano as the center of automatic system controllers. Software design uses the basic programming language C Arduino and utilizes the timer library function which functions as a room timer. From the results of the research, this tool can already be used as an automation while saving electricity consumption in the use of electronic devices such as lights and air conditioners.]]>
<![CDATA[Prototipe Penggerak Atap Kanopi Otomatis Menggunakan Sensor Cahaya, Sensor Hujan Dan Sensor Suhu Berbasis Mikrokontroler ATMega16 ]]>
<![CDATA[I Made Adi Wijaya]]>;
<![CDATA[I Gusti Agung Putu Raka Agung]]>;
<![CDATA[Pratolo Rahardjo]]>
<![CDATA[ Jurnal SPEKTRUM Vol 6 No 1 (2019): Jurnal SPEKTRUM ]]>
Publisher : <![CDATA[Program Studi Teknik Elektro UNUD ]]>
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DOI: 10.24843/SPEKTRUM.2019.v06.i01.p15
<![CDATA[Small house design, sometimes ignoring comfort factors such as air circulation and direct sunlight that can make humidity increase and higher temperature inside the house. Giving a controll system at the part of the house can make the air circulation better. In this paper, the prototype design of automatic roof canopy drive using a light sensor, rain sensor, and an ATMega16 microcontroller based temperature sensor is used to solve the problem. This prototype uses the programming language in BASCOM AVR software and PROTEUS software for circuit simulation. Light sensor in the form of LDR will detect changes in light intensity, that is when dark produces a voltage of 1.17V and logic 0 and when light produces a voltage of 4.30V and logic 1. Rain sensor is used to detect the presence of water in the event of rain, that is in conditions the rain produces a 1.83V voltage and logic 0, whereas in the absence of rain it produces a voltage of 4.70V and logic 1. The LM35 temperature sensor is used to detect temperature changes that occur, namely when temperatures less than 29ºC will logic 0 and when the temperature is over from 29ºC will logic 1. All conditions generated by the three sensors will be converted through the ADC so that it can provide logic input to the microcontroller to drive the servo motor to close or open the canopy roof.]]>
<![CDATA[RANCANG BANGUN SISTEM KONVERSI UANG LOGAM MENJADI E-MONEY BERBASIS MIKROKONTROLER DAN APLIKASI ANDROID ]]>
<![CDATA[D M Baskara Puruhita Wija]]>;
<![CDATA[I G A P Raka Agung]]>;
<![CDATA[Pratolo Rahardjo]]>
<![CDATA[ Jurnal SPEKTRUM Vol 8 No 1 (2021): Jurnal SPEKTRUM ]]>
Publisher : <![CDATA[Program Studi Teknik Elektro UNUD ]]>
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DOI: 10.24843/SPEKTRUM.2021.v08.i01.p23
<![CDATA[Money is a medium that is used as a means of buying/selling. Indonesia uses theRupiah currency with 2 types of money used, one of which is coins. Coins are generally used intransactions of small amounts, but in some cases, coins are used in transactions of largeamounts. This caused problems in counting and sorting coins in terms of time and energy.Through this problem, a coin sorting and the counter system was developed that could beconverted into E-Money and integrated with an Android-based smartphone. The system isdesigned with 2 parts, namely hardware and software. The sorting system is created using thedifferent diameters of each coin. The counting system uses IR Sensor to detect coins andcounts on the ESP32. Testing on the system is carried out in 3 stages, namely testing the toolsystem, testing the Android application system, and testing the whole system. The system forconverting coins to e-money is made using the ESP32 as the main microcontroller withBluetooth as a medium of communication with smartphones. The coin sorting board is madeinto 4 strips and has holes the same size as the diameter of the coins. In the coin countingsystem, the tool has been able to count up to 250 coins in 8 minutes 21 seconds with anaccuracy percentage above 80%.]]>
<![CDATA[PROTOTYPE ALAT PENGINGAT PENGGANTIAN OLI PADA SEPEDA MOTOR MEMANFAATKAN SMS BERBASIS MIKROKONTROLER ATMEGA-328 ]]>
<![CDATA[Made Bayu Pranata]]>;
<![CDATA[I Gusti Agung Putu Raka Agung]]>;
<![CDATA[Pratolo Rahardjo]]>
<![CDATA[ Jurnal SPEKTRUM Vol 2 No 4 (2015): Jurnal SPEKTRUM ]]>
Publisher : <![CDATA[Program Studi Teknik Elektro UNUD ]]>
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<![CDATA[Dewasa ini masyarakat banyak disibukan dalam berbagai rutinitas harian mulai dari pekerjaan kantor, sekolah, rumah tangga dan lainnya. Karena terlalu banyak aktifitas biasanya masyarakat sering melupakan hal-hal kecil salah satunya lupa akan waktu yang tepat untuk melakukan perawatan sepeda motor khususnya dalam penggantian oli. Dari permasalahan tersebut maka munculah ide untuk membuat prototype alat pengingat penggantian oli pada sepeda motor memanfaatkan SMS berbasis mikrokontroler ATmega-328. Pada perangkat mekanik prototype terdapat komponen rotary encoder dan sensor kecepatan yang diletakkan pada velg. Jarak yang sudah ditempuh dan kecepatan putaran roda didapat dari putaran velg. Program delay timer akan menghitung waktu penggantian oli. Pada alat ini terdapat fitur pengiriman SMS terus-menerus serta buzzer terus berbunyi jika pengendara melebihi batas kecepatan. Alat ini bertujuan untuk mengingatkan pengendara sepeda motor dengan mengirimkan SMS tentang waktu yang tepat dalam melakukan penggantian oli serta peringatan jika melebihi batas kecepatan maksimal.]]>
<![CDATA[REALISASI ELEKTROKARDIOGRAF BERBASIS KOMPUTER PERSONAL UNTUK AKUISISI DATA ISYARAT ELEKTRIS JANTUNG ]]>
<![CDATA[IGAP Raka Agung]]>
<![CDATA[ Jurnal Teknologi Elektro Vol 4 No 1 (2005): (January - June) Majalah Ilmiah Teknologi Elektro ]]>
Publisher : <![CDATA[Universitas Udayana ]]>
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<![CDATA[Heart is a vital organ in human body that function to pump blood to the body. Pumping activity by heart muscles can be measured using an instrument called electrocardiograph(ECG). Using comercial electronic component can be realized a personal computer based electrocardiograph (PC ECG).This PC ECG consists ofelectrodes, cables, buffer, Wilson circuit, multiplexer, amplifier, filter, ADC, PPI and PC as main processor. Each components have been realized is tested to find result as its designing. Noise in the ECG signal is filtered using moving average methode. These signals is then represented in the waveform, graph and histogram. ECGcomponents have been made that have shown suitable result as design on its testing. ECG appearance have resembled performance comercial instrument. Moving average filter work properly when delay element is single.]]>
