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Anggun Yuli Asih; Rini Novi Ambarwati; Eni Heni Hermaliani; Tuti Haryanti; Windu Gata

Jurnal Elektronika dan Komputer 2021 Vol. 14 (1) STEKOM PRESS

Indonesia terkenal sebagai negara agraris karena memiliki sumber daya alam melimpah yang didukung dengan tanah subur sehingga masyarakatnya mayoritas bermatapencaharian sebagai petani. Salah satu hasil pertanian yang berkontribusi terhadap kemiskinan di Indonesia yaitu beras. Beras dengan mudah dapat ditemukan di pasar baik pasar tradisional maupun pasar modern, namun ditengah pandemi virus corona (COVID-19) sekarang ini membuat orang merasa takut untuk pergi ke pasar karena pasar merupakan salah satu klaster terbesar penularan covid-19. Salah satu inovasi teknologi yang telah banyak digunakan dalam dunia perniagaan yaitu vending machine (VM). VM merupakan sebuah mesin penjualan otomatis yang biasanya terdapat di tempat ramai dan strategis. Hal ini yang mendasari untuk pembuatan simulasi VM beras dan diharapkan dapat menjadi salah satu solusi pemutus penyebaran dan penularan covid-19. Simulasi VM beras ini dapat melakukan penjualan otomatis beras dengan masukkan berupa uang kertas atau dengan e-money dan keluarannya berupa struk bukti pembelian beras dan 5 jenis beras. Metode yang digunakan yaitu Finite State Automata (FSA) jenis Non-deterministic Finite State Automata (NFA) yang didefinisikan lima tupel, dengan rumus: M = (Q, Σ, δ, S, F). NFA dipilih karena dapat menjelaskan konsep kerja secara rinci sehingga mudah dipahami dan hasil dari FSA dapat dibuat konsep logika sederhana untuk implementasi.

Hadiyanto, Gunawan

Jurnal Elektronika dan Komputer 2021 Vol. 14 (1) STEKOM PRESS

The infrared detector (or IR detector) is an optoelectronic component and represents the core element of gas analyzers, flame sensors, devices of spectral analysis, as well as non-contact temperature measurement. pyroelectric infrared detectors work with  stabilization time  in a wide operating temperature range (-55 ... 85) °C, capable of measuring the slightest amounts of infrared radiation (as little as a fraction of a nW) with wavelengths between 1 µm and > 25 µm. The difference of the good pyroelectric or No good (NG) devices shown by graph of voltage offset operating that can check by manual using Digital Multi Meter or semi auto by using microcontroller One of importance measuring of IRD sensors  is Offset Voltage, stabilization of offset voltage indicate the sensor is stable with certain level value. Stabilization value measurement during measuring time means the average value not so much different with fluctuation value.  10 bit ADC on Atmega 328 that main microcontroller on Arduino Uno is capable to measure the Offset Voltage of IRD sensor and check the measurement values is within specification of IRD sensor.

Ira Zulfa; Hendri Syahputra; Ahyar Faisal

Jurnal Elektronika dan Komputer 2021 Vol. 14 (1) STEKOM PRESS

The purpose of this thesis is to produce tangible results in providing comfort or convenience in controlling electrical appliances, including turning on or off lights at home and controlling other electrical appliances. The method used in making the Design of Control System for Electrical Equipment Using Bluetooth Based on the Atmega 328 Microcontroller is a prototype. This research method consists of several stages, library research, analytical methods, design and implementation methods. The results achieved are reducing the number of fires due to electrical short circuits and increasing aspects of comfort and convenience for users as well as people with disabilities and the elderly, who find it difficult to stand or to reach lights and the implementation of infrastructure devices, where a series of these tools can work after bluetooth devices are available in the community. android smartphones. connected to the bluetooth module connected to the arduino microcontroller. Basically, using the principle of this tool, the user must be able to operate a smartphone based on the Android operating system. The conclusion is that this equipment has been tested and can be used as a controller of power tools with a lightweight android smartphone via a Bluetooth connection without having to press the switch button.

Richasanty Septima S; Ira Zulfa

Jurnal Elektronika dan Komputer 2021 Vol. 14 (1) STEKOM PRESS

Online rickshaw application is an application that serves to help the performance of the community in traveling.  Pedicabs are widely used by residents, especially in Takengon, pedicabs are one of the means of land transportation that is in great demand by the community, especially the middle to lower classes.  However, pedicabs can not be found all the time, sometimes we have to wait a long time, have to walk to get a pedicab, even pedicabs are only at a crossroads.  Lack of information between rickshaw drivers and passengers and limited public transport lanes.  With this online transportation application, answering the problems of the people, especially in the Takengon area.  How to use it so easily that the target community must have special skil…

ABA, Muhammad Ulin Nuha; Bayu Wahyudi; Mohamad Sofie

Jurnal Elektronika dan Komputer 2021 Vol. 14 (1) STEKOM PRESS

The climatic chamber is a calibration medium for the thermohygrometer. This simple climatic chamber was built using the Arduino uno, DHT22 sensor, heater, and peltier. The climatic chamber was designed and manufactured well and cheaply. Climatic chamber testing of the design results is carried out to determine the success rate of the tool. Tests are carried out using the Madgetech data logger tool through monitoring or monitoring of temperature within a certain period of time. The results of temperature monitoring at two observed values, namely temperatures of 250C to 300C and temperatures of 300C to 350C, showed good results with the corresponding rhythm of temperature increase and temperature decrease. It's just that the decrease in temperature still takes longer than the increase in temperature. This shows that the heater can be said to be working optimally and the peltier is not fully working. So it is necessary to do further studies related to the peltier for the climatic chamber both in terms of number and characteristics.

Atipa Muji

Jurnal Elektronika dan Komputer 2021 Vol. 14 (1) STEKOM PRESS

As an old educational institution, SMK Ma'arif NU 1 Ajibarang is growing rapidly, however it has not implemented Information Systems and Information Technology optimally in its business processes and does not yet have an Information Systems strategic planning portfolio. This is deemed necessary in making a strategic information system, in order to provide superiority in business competition. Information system strategic planning is one of the keys in implementing information systems and information technology in business activities. Strategic planning in this study uses themethod Ward and Peppard to compile an information system strategic plan at SMK Ma'aif NU 1 Ajibarang and AHP to determine the application roadmap. The results of this analysis define the information system strategic planning company in the form of an information system business strategy, information system management strategy and information technology, information system strategy, information system recommendations, future applications and implementation plans.

Felyta Emasriani; Reni Rahmadewi

Jurnal Elektronika dan Komputer 2021 Vol. 14 (1) STEKOM PRESS

Recently, the need for cellular telecommunication services in Indonesia refers to a very large number. This customer growth rate must be balanced with infrastructure development. PT. Telkomsel carries out scheduled maintenance or maintenance activities on BTS devices. Based on these problems, the research carried out by the author aims to find out and understand the repair or repair procedures on computerized BTS devices at PT. Telkomsel, Karawang. The result of the research is that it is known that the application of a computerized system at PT. Telekomunikasi Selular GraPaRi Karawang helps the process of repairing BTS devices in meeting information needs. To monitor damage to BTS equipment, it is done by means of an alarm monitoring system using the iManager u2000 software.

Rais, Rais; Arfan Haqiqi; Eko Budihartono; Rivaldo Mersis Brilianto

Jurnal Elektronika dan Komputer 2021 Vol. 14 (1) STEKOM PRESS

The waste processing and renewable energy are being the issues in the industrial 4.0 era. Kitchen and organic trash in the rural areas will become a disaster if there is no solutions. On the other hand, kitchen and organic waste have a positive side, that they can be converted into biogas which can be converted into electricity. On the Minister of Energy and Mineral Resources Regulation Number 27 of 2014, supports the development of biogas and will buy electricity from the biogas conversion. The potential for biogas that obtained by the organic trash per 1000 people is 7619.8 liters of biogas, it meas that the energy contained is still abundant and the production can still be increased if processed with a modern digester system. This research produces a tool in the form of a portable digester that named GenBIoT (IoT-based Biogas Generator) which can be used by the public to produce biogas that  used by home industries or general factories. This research used the research method that similar to System Development Life Cycle (SDLC), this tool is built with several stages starting from planning analysis, designing, functional testing, data analysis and reporting of the results or implementing this tool that can be used as an alternative, as a cheap and easy source energy. This tool is based on the Internet of Things so that this tool can be monitored regarding gas pressure in the reactor, biogas volume and it will detect if there is a biogas leak so it will displayed on the system. To produce the maximum biogas composition, 50% of cow dung is required, 40% of kitchen trash and 10% of water with a ratio of 5: 4: 1 so it will produce 40 kg of biogas with a volume of methane gas (VGM) 0.11 m3 of biogas for cow dung. and 0.04 m3. The third experiment becomes the basis of future biogas production with energy produced from biogas per day of 716.39 Wh

Mulyono, Joko; Djuniadi; Esa Apriaskar

Jurnal Elektronika dan Komputer 2021 Vol. 14 (1) STEKOM PRESS

Peristiwa kebakaran merupakan kejadian yang sangat umum terjadi, banyak faktor yang mempengaruhi, di antaranya ialah; hubung pendek arus listrik, kebocoran gas, putung rokok. Kebakaran yang terjadi pasti akan berujung pada kerugian baik itu kerugian materil maupun korban jiwa. Pencegahan sejak dini sangat diperlukan yaitu dengan penerapa sitem pendeteksi kebakaran atau alarm kebakaran. Rancangan alat pendeteksi kebakaran terdiri dari flame sensor sebagai pendeteksi api, sensor MQ-2 sebagai mendeteksi adanya asap dalam ruangan. Serta dilengkapi dengan mikrokontroler Arduino. Berdasarkan kedua sensor indikator kebakaran ini akan ditampilkan melalui LCD dan apabila terjadi kebakaran akan di iringi dengan suara peringatan dari buzzer. Uji coba sistem terlebih dahulu melalui software proteus 8 profesional dengan tujuan membangun suatu alat pendeteksi kebakaran secara otomatis menggunakan flame sensor dan sensor asap MQ2, yang dilengkapi dengan LCD LM016L berbasis mikrokontroller arduino. Hailnya mampu memberikan gambara kepada kalayak umum bagaimana sistem kerja dari alat pendeteksi kebakaran/ alarm kebakaran yang dapat di representasikan memalui software proteus.

Sri Diantika; Windu Gata; Hiya Nalatissifa

Jurnal Elektronika dan Komputer 2021 Vol. 14 (1) STEKOM PRESS

Keseimbangan antara pasokan dan permintaan listrik sangat diperlukan untuk mendapatkan jaringan listrik yang stabil, agar dapat diketahui pola data kestabilan jaringan listrik ini maka diperlukan pengelompokkan atau pengklasifikasian terhadap data dengan memanfaatkan teknik data mining guna mengolah informasi. Untuk mencari metode data mining yang bisa menghasilkan akurasi terbaik dalam mengklasifikasikan data Kestabilan jaringan listrik, maka pada penelitian ini dilakukan perbandingan penerapan algoritma klasifikasi SVM dan Naïve Bayes terhadap dataset Electrical Grid Stability Simulated yang yang diambil dari UCI Machine Learning. Dari hasil pengujian klasifikasi kestabilan jaringan listrik yang telah dilakukan menggunakan aplikasi WEKA 3.8.2. Metode Support Vector Machine (SVM) menunjukan tingkat accuracy yang lebih baik yaitu sebesar 98.9%  jika  dibandingkan dengan metode Naive Bayes yang meghasilkan nilai akurasi sebesar 97.64% Hasil akurasi ini akan menunjukan hasil yang berbeda tergantung dengan jenis data, jumlah instance, label class dan Percentage split data yang digunakan.  

Muhamad Tabrani; Eni Pudjiarti

Jurnal Elektronika dan Komputer 2021 Vol. 14 (1) STEKOM PRESS

Anugerah Citra Sejahtera perusahaan yang bergerak dibidang jasa pengembangan kontruksi dan pemasaran di bidang properti. Saat ini di sistem berjalan proses pembelian bahan baku masih menggunakan proses pencatatan seacara manual yang dicatat dalam buku stok pengadaan bahan baku, jika dilihat dari sisi bisnis proses pembelian bahan baku memiliki peran yang sangat penting dalam sebuah proses perusahaan, dimana jika proses pencatatan bahan baku tidak dilakukan dengan baik atau proses penyimpanan data pencatatan hilang dapat menimbulkan masalah bagi perusahaan. Selain itu juga dengan pencatatan secara manual proses pengolahan data akan membutuhkan waktu yang sangat lama serta apabila diperlukan datanya tidak akan cepat dan akurat. Perancangan Sistem Informasi dengan menggunakan metode waterfall, sistem informasi yang dibuat lebih mudah untuk dilakukan pengontrolan serta terjadwal dengan baik prosesnya pengerjaanya, selain itu juga metode ini sangat cocok untuk pembuatan aplikasi dengan skala yang besar mengingat model pengembanganya paling handal dan banyak di gunakan para developer.Sebuah sistem informasi pembelian bahan baku PT. Anugerah Citra Sejahtera secara komputerisasi yang dimaksudkan agar kegiatan pencatatan pembelian dapat berjalan lebih efektif dan efisien dan pengolahan datanya dapat akurat dan tepat waktu. Perhitungan data juga terjamin kebenarannya karena sudah terprogram dengan baik dan data yang masuk telah divalidasi serta komputer-komputer selalu melakukan verifikasi terhadap data tersebut.

Pahrudin, Rhegiyana

Jurnal Elektronika dan Komputer 2021 Vol. 14 (1) STEKOM PRESS

Abstrak Perkembangan ilmu pengetahuan dan teknologi semakin maju terutama dibidang teknologi elektro atau teknologi elektronika, banyak keuntungan yang didapatkan akan berkembangnya suatu teknologi namun semakin berkembangnya teknologi makin banyak pula tindak kriminal dan semakin pintar pula pelaku kriminal terutama pada pencurian kendaran. Kita membutuhkan lahan parkir yang aman untuk menyimpan kendaraan kita, peningkatan kemaanan merupakan salah satu yang harus diperhatikan dalam membuat perancangan sistem keamanan parkir. Sistem tersebut diharapkan menurangi tingkat kriminal yang ada disekitar kita. Perancangan sistem parkir ini menggunakan teknologi fingerprint sensor dan Barcode scanner. Bukan hanya sistem keamanan yang di perkuat alat ini pun dapat memberikan informasi data diri dan informasi kendaraan yang di tampilkan pada LCD dengan menggabungkan data sidik jari pengendara. Dengan menggunakan sistem fingerprint yang berkesinambungan dengan barcode scanner diharapkan menekan resiko pencurian kendaraan yang berada pada lingkungan parkir. Metode menyatukan Fingerprint sensor dan barcode scanner yaitu menggunakan mikrokontroler Arduino Wemos D1 R1 yang terkoneksi dengan internet.      Kata Kunci: Parkir, Fingerprint Sensor, Barcode Scanner, Arduino Wemos D1 R1

Rahmat Gunawan; Arif Maulana Yusuf; Lysa Nopitasari

Jurnal Elektronika dan Komputer 2021 Vol. 14 (1) STEKOM PRESS

Presence is an activity that aims to determine the level of attendance of a person in an agency, school or company. One of the problems that occurs is the student attendance system at STMIK Rosma Karawang due to cheating when making attendance at lecture activities begins. By looking at the problems contained in STMIK Rosma Karawang, a program is needed. To create a program requires a method. The method used is a waterfall as a software development method. The proposed database design is a DFD (Data Flow Diagram). Implementation of the program using Android Studio. With the design of the program is a solution to solve problems that exist in the presence system at STMIK Rosma Karawang, and can achieve an effective activity in supporting activities at STMIK Rosma Karawang.

Evanita; Maulana Wijayanto

Jurnal Elektronika dan Komputer 2021 Vol. 14 (1) STEKOM PRESS

Fieldwork Practices were carried out at Pati National Vocational High School, from January 25, 2021 to February 20, 2021. In this Fieldwork Practice, the authors created an efficient application and management system for student data, especially for new students in a computerized manner. By using this web-based programming system, it can simplify data collection, automatic ranking based on National Exam scores, reduce paper usage, reduce cheating and are expected to overcome the obstacles experienced by both the committee for admission of new students and the parents of the students themselves. . This research produces a system that can handle the admission process of new students with the hope that it is more efficient and effective than the previous method.

maulana romli, yana muhammad

Jurnal Elektronika dan Komputer 2021 Vol. 14 (1) STEKOM PRESS

Perkembangan teknologi semakin maju, kemajuan perkembangan ini dapat memberi keuntungan kepada masyarakat seperti perkembangan pada bidang Kesehatan seperti pada penelitian ini yang membuat aplikasi monitoring kadar gula darah dan tingkat dehidrasi dengan menggunakan MIT App Inventor. MIT App Inventor sendiri merupakan aplikasi web sumber terbuka yang dikembangkan oleh google. Dalam pembuatan aplikasi di MIT App Inventor programnya menggunakan blok-blok yang sangat mudah. Aplikasi ini dapat memonitoring kadar gula darah dan tingkat dehidrasi karena terdapat bantuan dari Bluetooth hc-05 yang berfungsi sebagai komunikasi data pengiriman data monitoring dari Arduino ke android.

Priatna, Apit; Yusuf, Arif Maulana; Elanda, Anggi

Jurnal Elektronika dan Komputer 2021 Vol. 14 (1) STEKOM PRESS

The use of information, media and communication technology has changed both the behavior of society and human civilization globally. The development of hospitals in Karawang is increasingly mushrooming, as well as the increasing number of degenerative diseases such as hypertension and diabetes, the increasing prevalence of chronic kidney disease. So it requires the handling of renal replacement therapy (Renal Replacement Therapy) because it is increasingly needed for cases of acute and chronic renal failure. The purpose of this research is to build an integrated and controlled information system that can simplify the patient administration process and reduce the effectiveness of the patient's time for dialysis. The methodology that the authors use in this study includes methods of identification and system design. System identification includes identification of the organization, running systems, and problem identification. The problems faced at this time in the Hemodialysis Installation. Patient data is not the same between patients who are served by hemodialysis (dialysis) and those in the application report, the transaction value for using tools and materials is sometimes empty or there is no transaction value in the application, it will cause losses to the customer. hospital. It is hoped that this system can eliminate the problems that have been happening so far.

Hendri Syahputra; Ira zulfa; Indra qusyairi

Jurnal Elektronika dan Komputer 2021 Vol. 14 (1) STEKOM PRESS

Security is an aspect that is needed by all circles today. With security, it can reduce the risk of crime and worry about the crime. This study discusses a room monitoring camera system using a PIR sensor, if a movement occurs it will be detected by this sensor. To process it, NodeMCU is used, then using the Telegram Bot as a notification if a movement occurs. The way this system works is that the PIR sensor will detect the presence of people or not in the room that is given this security system, then NodeMCU will process the data to send notifications in the form of messages and the IP Camera will display live video broadcasts.

kurnialensya; yuli fitrianto

Jurnal Elektronika dan Komputer 2021 Vol. 13 (2) STEKOM PRESS

Arzara company is a company engaged in the garment sector, the development of the company affects the level of production of goods, so that in order to balance the production needs, it must increase the number of employee needs. The problem that often occurs in Arzara's company is the lack of professionalism of the company's employees, resulting in unilateral termination of employment. Termination of employment of employees of course will also affect the amount of production of goods. The SAW method or often called Simple Additive Weighting is an algorithmic method used for decision making, using certain criteria as the weight of the assessment in decision support. In making employee admission decisions using the SAW method using several criteria, which include expertise (skills), work experience, age, gender, education, health, talent, character, temperament, character, general knowledge tests, psychological tests. By using the PHP programming language, it can be used to assist the company to perform valid recruitment of employees . Applications that have been made can be used as a tool for decision makers while remaining based on a decision support system that is more effective in selecting employee admissions using the SAW ( Simple Additive Weighting ) method . 

Chandani, Chicie; Toni Wijanarko Adi Putra; Migunani

Jurnal Elektronika dan Komputer 2021 Vol. 13 (2) STEKOM PRESS

Academic means the teaching and learning process carried out in the classroom or school world. Academic information systems at SMAN 1 Ketungau Tengah previously still use manual management systems, such as the calculation of final manual values ​​as a result can cause delays in giving value, the data received is still in the form of paper files that can be lost or damaged, and not connected to the network from one computer to another computer so that the process of moving data still uses a flashdisk. The system certainly has a lot of weaknesses, the implication of which is the weakness of the administrative system, the waste of energy, the less optimal service, for example the distribution of report cards which are sometimes late, slow data processing and calculation errors. The system created aims to help ease calculations, can enter data more effectively and efficiently. The system development method used is SDLC (Sytem Development Life Cycle) which consists of planning, analysis, design, implementation and maintenance. Using the PHP programming language in its creation and MySQL as the database. The results of this study are a Mobile Web-based Academic Information System that helps the admin (staff) in managing data and printing report cards, teachers in managing values, students and parents / guardians in looking at schedules and grades.

rozikin, khoirur; setiawan, nuris

Jurnal Elektronika dan Komputer 2020 Vol. 13 (2) STEKOM PRESS

An application is usually used by several users where each user has access rights to certain forms in accordance with their authority or position. For example, the Inventory application or inventory is used by the Manager to view reports, the Warehouse section to check the stock of goods and the cashier to make purchases and sales transactions. Another example is the Academic Value application used by the Administration to input student and course data, Lecturers to input academic value data and Students to view academic value data. Access rights to use certain forms can be set directly in the program code with the consequence that if there is a change in access rights by certain users, you must change the program code, this is not a problem if the company can still contact the programmer to change the program code according to changes in user access rights but it will be a problem if the program maker cannot be contacted by the company to change the program code according to changes in user access rights.