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All Journal International Journal of Electrical and Computer Engineering Jurnal Teknologi Elektro KURVATEK Aviation Electronics, Information Technology, Telecommunications, Electricals, Controls (AVITEC) Indonesian Journal of Electrical Engineering and Computer Science Prosiding Seminar Nasional Rekayasa Teknologi Industri dan Informasi ReTII
Arif Basuki
Institut Teknologi Nasional Yogyakarta
Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Social Sciences Transportation

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Perancangan Sistem Presensi dengan RFID Berbasis Website: PERANCANGAN SISTEM PRESENSI DENGAN RFID BERBASIS WEBSITE Wahyu Eko Prasetyo; Arif Basuki; sudiana; Joko Prasojo; Dwika Nove Rahmanto
Retii 2022: Prosiding Seminar Nasional ReTII ke-17
Publisher : Institut Teknologi Nasional Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The attendance system is an important aspect because it records attendance and recaps data which can later be used as reports or aspects of student assessment. However, the attendance system used today is still paper-based where students sign it according to the column/row of their name. Therefore, the presence system that will be designed in this study uses RFID (Radio Frequency Identification) technology. The system is made using an ESP-32 microcontroller, FRC522 RFID reader, RFID tag, 16x2 LCD, buzzer, TP4056 lithium ion battery charger, and 18650 battery. The LCD will display a presence message, if there is a UID number in the database it will be stored and displayed on the website page, but if it is not there a message will appear that the UID number is not on the LCD screen. The results of the study show the system works well, this is indicated by a system that can facilitate and speed up the attendance recapitulation process because the attendance data results are already stored in the database and can be retrieved in pdf and excel form on the website page Keyword : RFID, website, database, attendance
Desain koefisien pengali pada Audio Low Pass Filter Digital 4 KHz Dermawan, Denny; Basuki, Arif; Widyastuti, Diah Suwarti; Sidik, Aden Ilyas
Jurnal Teknologi Elektro Vol 15, No 2 (2024)
Publisher : Electrical Engineering, Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/jte.2024.v15i2.006

Abstract

Audio Low Pass Filter yang digunakan pada sistem komunikasi baik pada sistem komunikasi telepon maupun sistem komunkasi radio memiliki frekuensi cut-off sebesar 0 - 4 KHz. Lebar bidang 0 - 4 KHz ini dianggap cukup untuk “memotong” sumber sinyal yang biasanya adalah sumber vokal manusia sebesar 20 KHz. Desain Audio Low Pass Filter dapat berupa filter analog yang pada implementasinya didukung oleh komponen resistor, kapasitor dan induktor yang relatif memiliki ukuran fisik yang agak besar dan tebal. Pada sisi lain kemajuan teknologi menuntut untuk membuat perangkat keras dengan ukuran sekecil dan setipis mungkin sehingga implementasi Audio Low Pass Filter dapat juga dibuat dalam bentuk digital yang akan diwujudkan dalam keping Integrated Circuit yang memiliki ukuran fisik yang jauh lebih kecil dan lebih tipis. Metode yang digunakan dalam mendesain low pass filter digital ini adalah menggunakan tapis digital Finite Impulse Response (FIR) penjendelaan Hamming. Frekuensi cut off perancangan adalah 4 KHz. Koefisien pengali yang muncul dalam perancangan Audio low pass filter digital  akan diwujudkan dengan Algoritma Paper and Pencil.  Hasil perancangan akan simulasikan dan disinthesis menggunakan perangkat lunak Xilinx Integrated Software Environment (ISE) versi 10.1 dan diimplementasikan ke dalam Field Pragrammable Gate Array (FPGA).
Co-Authors Asniar Aliyu Bagus Gilang Pratama, Bagus Gilang Cipto Driyo Denny Dermawan Diah Suwarti Widyastuti Dwika Nove Rahmanto Erig Efendi Ilham Dirgantara Imro Mikel Selan Joko Prasojo Karan Gunawan Mohammad Arsyad Mytha Arena okta lestari okta lestari Oni Yuliani Rizki Ismail Septi Savitri Sidik, Aden Ilyas Sudiana Sugiarto Kadiman Trie Handayani, Trie Tugino Wahyu Eko Prasetyo Yusuf Ari Bahtiar