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INDONESIA
Foristek
Published by Universitas Tadulako
ISSN : 20878729     EISSN : 25797174     DOI : https://doi.org/10.54757
Core Subject : Science, Engineering,
Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering
Foristek is a scientific journal published with the aim of facilitating academics and researchers to publish their research results in the field of Innovation electrical engineering. Journal of the Electrical and Information Engineering Forum (Foristek) is a journal published by the Department of Electrical Engineering, Tadulako University. Foristek began publication on September 2, 2011 and published regularly twice a year in May and November.
Arjuna Subject : Teknik (semua kategori) - Teknik Listrik dan Elektro
Articles 163 Documents
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RANCANG BANGUN DC-DC CONVERTER TERKENDALI DALAM SISTEM PENGISIAN BATERAI PADA MODUL PEMBANGKIT LISTRIK TENAGA BAYU (PLTB) BERBASIS FUZZY Kiki Andes Hariyanti; Mery Subito; Alamsyah Alamsyah; Rudi Santoso; Agustinus Kali
Foristek Vol. 13 No. 2 (2022): Foristek
Publisher : Foristek

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54757/fs.v13i2.146

Abstract

The wind is one of the new renewable energy sources that can be used as a source of electrical energy. But the wind in nature has a speed that varies greatly with each time and place. This can be overcome by using the DC-DC Converter tool with a fuzzy method to produce a stable electrical voltage so that it becomes usable electrical energy. This tool uses a series of converters connected to the Arduino microcontroller. The DC-DC converter circuit in this study also uses a voltage sensor as feedback for the Fuzzy method to maintain the stability of the circuit output which varies from 2V-5V, so that it can maintain a voltage of 6.5V which is used as a 6V battery charging. This circuit has an average efficiency of 60% for the open-loop system and 63% for the closed-loop system.
MODIFIKASI SEPIC CONVERTER UNTUK PENGONTROLAN TEGANGAN KELUARAN BERBASIS LOGIKA FUZZY Faisal Al-Habsyi; Rizana Fauzi; Irwan Mahmudi; Yuli Asmi Rahman; Maryantho Masarrang
Foristek Vol. 13 No. 2 (2022): Foristek
Publisher : Foristek

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54757/fs.v13i2.147

Abstract

Sun is one of the new renewable energy sources that can be used as a source of electrical energy that is available on the earth. But the sun in nature has a light intensity that varies greatly with each time and place. This issue can be overcome by using the Modification Sepic Converter tool with a fuzzy method to produce a stable electrical voltage so that it becomes usable electrical energy. This tool uses a series of converters connected to photovoltaics. The tool also uses a voltage sensor as feedback for the Fuzzy method to maintain a voltage of 21-23VDC to 48VDC.
PERANCANGAN SISTEM ANTRIAN ANTI COVID 19 BERBASIS INTERNET of THINGS MENGGUNAKAN RASPBERRY Pi W ZERO Agum Laksmana; Ardi Amir; Tan Suryani Sollu; Muhammad Aristo Indrajaya
Foristek Vol. 13 No. 2 (2022): Foristek
Publisher : Foristek

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54757/fs.v13i2.148

Abstract

Utilization of electronic technology in various aspects of human life, both in household needs, education, industry, and human habitation itself. In this discussion is how to design a queuing system based on the Internet of Things using a Raspberry Pi W Zero controller. Internet of Things is a concept in which an object or object is implanted with technologies such as sensors and software with the aim of communicating, controlling, connecting, and exchanging data through other devices while still connected to the internet. In designing this queuing system, a website is needed to support this tool to make it easier for users to register online without having to manually take queue numbers. The programming language used for the Raspberry Pi W Zero controller uses python. Testing this queuing system 100% went well and according to what was designed for the design of an Internet of Things based anti covid 19 queuing system using the Raspberry Pi W Zero. With this tool, it can make it easier for users to register queue numbers and be able to run the appropriate Health protocol system.
PERANCANGAN ALAT PENDETEKSI LEVEL BAHAYA KEBISINGAN AREA KERJA BERBASIS ARDIUNO UNO Dewi Pujiant; A. Asni B.; Mayda Waruni Kasrani
Foristek Vol. 13 No. 2 (2022): Foristek
Publisher : Foristek

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54757/fs.v13i2.149

Abstract

Noise hazards can occur in almost all work areas and can be sourced from various work equipment. The sound category included in the noise hazard is sound with an intensity of more than 70 dB. In areas where sound has an intensity of more than 70 dB, it is recommended to use hearing protection devices such as ear plugs, while if the sound intensity is more than 80 dB, you must use ear muffs. The work area is usually only given a warning board to use hearing protection equipment, but there is no noise hazard detection device that can give real-time warnings. The purpose of this study is to design a tool that can detect and measure noise levels in a work area. This tool uses the fc-04 tool as a noise level reader which then gives a signal to the Arduino Uno microcontroller which will classify the sound level into 3 levels, namely low, medium and high which are displayed on the LCD board and use 3 LED (green, yellow and red) as an indicator of the level of noise hazard and a warning to use hearing protection.
RANCANG BANGUN ALAT PERAJANG SINGKONG DAN PISANG DENGAN MOTOR PENDORONG Fifiningrum Fifiningrum; Wirdha Wirdha; Sari Widya Ningsih; Dody Chandra Kumara
Foristek Vol. 13 No. 2 (2022): Foristek
Publisher : Foristek

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54757/fs.v13i2.150

Abstract

Chips are a type of snack or snack made from tubers such as cassava and bananas which are usually produced by home businesses. However, most home-based chips making businesses still use manual tools such as kitchen knives or cutters so that production takes longer, the thickness cannot be adjusted and the risk of workers' hands being injured by knives is added. This cassava and banana chopper uses a driving motor system that is driven by an electric motor with a speed of 1400 RPM HP and the pusher is driven by a power window. The results of this tool chopping obtained thickness in cassava and banana is 1-1.5 mm which is the standard thickness of chips in general. In addition, the results obtained are faster production compared to manual techniques using a kitchen knife or cutter. The conclusion is that the cassava and banana chopper with a driving motor is very efficient for chip craftsme, because the production time is faster and the thickness of the cassava and banana slices is uniform, namely 1-1.5 mm.
PENGARUH MEDIA PERENDAMAN NaCl TERHADAP LAJU KOROSI PADA BAJA ST 42 DALAM EKSTRAK INHIBITOR KULIT PISANG KEPOK Ramza Ramza; Rammang Magga; Yulius S. Pirade
Foristek Vol. 13 No. 2 (2022): Foristek
Publisher : Foristek

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54757/fs.v13i2.152

Abstract

Effect of NaCl Immersion Media on Corrosion Rate on ST 42 Steel in Kepok Banana Peel Inhibitor Extraction. This study aims to determine the corrosion rate of ST 42 steel using an inhibitor of kepok banana peel extraction with various NaCl immersion media. Sample immersion time is 168, 336, 504 hours. The method used to calculate the corrosion rate is to measure the weight loss. The sample of this research was carried out in the Mechanical Engineering laboratory, Faculty of Engineering and the Pharmacy laboratory, Faculty of Mathematics and Natural Sciences, Tadulako University. The results obtained in the variation of NaCl 2.5%, 3.0%, 3.5%, 4.0%, 4.5%, inhibitor kepok banana peel extraction 300 ppm, an increase in corrosion rate with increasing NaCl variation with the same amount of extraction inhibitor, this is because the percentage of NaCl variation greatly affects the corrosion rate.
ANALISIS PENGUJIAN PENETRASI PADA LAYANAN HOSTING MENGGUNAKAN METODE BLACK BOX (Studi kasus : Blogspot, Wordpress dan Shared Hosting) Aditya Bimandaru; Alamsyah Alamsyah; Aryo Nugroho
Foristek Vol. 14 No. 1 (2023): Foristek
Publisher : Foristek

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54757/fs.v14i1.238

Abstract

Analyzing the security of hosting services is important to ensure website security. This research was conducted to test thesecurity level of the Village website. By using 15 samples with 5 websites each, on each Hosting service such as Wordpress,Blogspot, and Shared Hosting. With the Black Box method and Google dork to find the target website to be tested. Open WebApplication Security Project (OWASP) Zed Attack Proxy (ZAP) to find security holes by scanning websites. The resultsobtained are usually 3 types of vulnerabilities, namely Cross Site Scripting (XSS), Cross-Site Request Forgery (CSRF)Tokens, and Clickjacking. After that, analyze the results by seeing how many warnings you get from the scanning process tofind out which hosting service has the highest level of security.This research aims to help the village government build a secure village website. By choosing a safe hosting service andknowing how to find security holes on the website that has been made, so that you can fix these security holes.Keywords : Hosting, OWASP, ZAP, XSS, CSRF.
RANCANG BANGUN SISTEM MONITORING LEVEL PERMUKAAN AIR BERBASIS INTERNET OF THINGS (IoT) Mery Subito; Theresa Blestania; Nurhani Amin; Sari Dewi
Foristek Vol. 14 No. 1 (2023): Foristek
Publisher : Foristek

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54757/fs.v14i1.247

Abstract

Indonesia is a country that has two seasons, namely the summer and the rainy season, when the rainy season arrives, the rainfall will be very high which can cause flooding. This can be overcome by technological innovation in the form of tools that can work in real-time to detect the condition of water flow in rivers so that losses due to flooding can be minimized. This tool uses a level sensor with the float magnetic level gauge method which is connected to the ESP32 microcontroller module as a sensor data controller and sends the sensor measurement data values ​​to the IoT platform. The sensor measurement results correspond to the water level in centimeters and are sent to the IoT platforms, namely Blynk and Telegram in real-time. The results of sending data to the Blynk and Telegram applications have an average error value of 1.5%.
IMPLEMENTASI SISTEM INFORMASI NILAI MATA PELAJARAN BERBASIS WEB DENGAN FITUR PEMILIHAN SISWA BERPRESTASI AKADEMIK MENGGUNAKAN METODE PROFILE MATCHING Wirdhayanti Wirdhayanti; Syaiful Hendra; Hajra Rasmita; Idhamsyahreza Idhamsyahreza
Foristek Vol. 14 No. 1 (2023): Foristek
Publisher : Foristek

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54757/fs.v14i1.248

Abstract

The use of a computerized system saves data processing time, data storage can be safer than manual storage and can reduce the human error factor. There fore the use of information systems as a data management tool must be designed according to existing needs. This is what is needed by SMP N 5 Palu because the management of existing subject values is still done manually so it has weaknesses, including recording grades, making attendance reports, and making report cards which is quite difficult to collect lesson values from each teacher so that the recording process becomes hampered and The process of selecting outstanding students which has been carried out so far by the school still has several weaknesses as a result it raises several problems, including the processing of data for selecting outstanding students which takes a long time and the possibility of human error occurring in data processing. Therefore, a web-based subject score information system was created with the feature of selecting outstanding students using the Profile Matching method. This system was developed using the Profile Matching method, which is a multi-criteria decision-making method that has very simple calculations but has good level of selectivity in determining an alternative. The results of this study are in the form of applications that can help provide information on subject values and decisions in determining students' academic achievements at the school.
IMPLEMENTASI FUZZY LOGIC UNTUK KUALITAS UDARA, SUHU, DAN KELEMBABAN UDARA BERBASIS IOT Tamaji Tamaji; Yoga Alif Kurnia Utama
Foristek Vol. 14 No. 1 (2023): Foristek
Publisher : Foristek

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54757/fs.v14i1.249

Abstract

Air is the most important factor in human life. Air quality is the most supportive factor in the development of everyday living things. Temperature, Humidity and PPM (Parts Per Million) substances in the air are the parameters most often found in the environment around where we live. Every day there is and increase in pollution from motorized vehicles without us knowing how bad or good the air condition in our environment is. Therefore we need and air quality monitoring to find out how good the air condition around us is by using the MQ-135 gas sensor which is produces air quality output and using the DHT11 sensor which is output the temperature and humidity of the air around the sensor. And using an ESP8266 microcontroller based to display the output on the sensor anywhere and anytime with internet. It is hoped that this tool can be useful to determine the condition of the room good or bad so that users can improve the condition of the room where they live. It is also hoped that this tool can detect gasses leaks that occur in closed room and provide a warning to the user’s cellphone.

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