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All Journal IAES International Journal of Robotics and Automation (IJRA) Indonesian Journal of Electronics and Instrumentation Systems Telematika : Jurnal Informatika dan Teknologi Informasi Journal of Natural Sciences and Mathematics Research

Agfianto Eko Putra

(Scopus ID : 56534980600); Department Of Computer Science And Electronics, Universitas Gadjah Mada

Author-ID : 2898972

Agriculture, Biological Sciences & Forestry Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemistry Electrical & Electronics Engineering Materials Science & Nanotechnology Physics

Published : 6 Documents Claim Missing Document

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Purwarupa Portable Global Positioning System Haniah Haniah; Agfianto Eko Putra
IJEIS (Indonesian Journal of Electronics and Instrumentation Systems) Vol 3, No 1 (2013): April
Publisher : IndoCEISS in colaboration with Universitas Gadjah Mada, Indonesia.

AbstrakTelah dibuat sebuah sistem GPS portable menggunakan receiver GPS serta tampilan LCD 128X64. Sistem ini dapat membantu pengguna untuk mengetahui posisi mereka berada agar tidak tersesat. Sistem ini menampilkan data latitude, longitude, kecepatan dan waktu yang ditampilkan pada LCD 128X64. Sehingga pengguna bisa mengetahui posisi mereka dengan melihat posisi garis lintang dan garis bujur. Sistem ini dibuat dengan menggunakan mikrokontroler ATmega32 sebagai pemroses, GPS receiver Polstar PMB-688 untuk menerima data posisi dari satelit dan LCD 128X64 sebagai penampil. Sistem yang dibuat telah mampu menampilkan posisi garis lintang, garis bujur dan kecepatan secara akurat. Deviasi rata-rata untuk GPS portabel dibanding dengan GPS garmin adalah 1,753449 m ± 0,113532 m sedangkan deviasi rata-rata untuk kecepatan adalah 0,441 km/j ± 0,247 km/j. Kata kunci— GPS, Posisi, Polstar PMB-688, Atmega32, Mikrokontroler. Abstract Has created a portable GPS system uses a GPS receiver as well as an LCD display 128X64. This system can help users to identify where they are located so as not to get lost. This system displays the latitude, longitude, speed and time are displayed on the LCD 128X64. So users can know their position by looking at the position of latitude and longitude. This system using microcontroller ATmega32 as processor, GPS receiver Polstar PMB-688 to receive position data from satellites and LCD 128X64 as a viewer. The system is already capable of showing the position of the latitude, longitude and speed accurately. Average deviation for GPS portable than static point is 1.753449 m ± 0.113532 m while the average deviation for speed is 0.441000 kmh ± 0.247000 kmh. Keywords— GPS, Position, Polstar PMB-688, Atmega32, Mikrocontroller.

Purwarupa Perangkat Keras untuk Eksekusi Algoritma AES Berbasis FPGA Nia Gella Augoestien; Agfianto Eko Putra
IJEIS (Indonesian Journal of Electronics and Instrumentation Systems) Vol 5, No 2 (2015): October
Publisher : IndoCEISS in colaboration with Universitas Gadjah Mada, Indonesia.

AES cryptography algorithm is a tool which often using to protect confidentiality of data.Confidentiality of data is principle parameter of data security in various system. Data security achieve by collaborated AES algorithm with another cryptosystem tools. Therefore, limited resource hardware to excecuteAES algorithm is very important. This research proposed hardware prototype for excecuting AES algorithm based on FPGA. Optimumresource utilizing become basic priority in this design. So that, we are using resource sharing between hardware for encryption and decryption, iteratif architecture on round level, pipeline architecture on transformation level with 32-bit architecture at design to attain optimum resource utilizing. Hardware prototype in this research use FPGA Xilinx Spartan®-6 (XC6LX16-CS324), encryption and decryption have been done in this hardware prototype. This prototype have 1,94Mbps/Slice hardware efficiency, 308,96Mbps throughput with only using 6% resource that available on this FPGA.

Rancang Bangun Purwarupa Penerima Paket APRS Berbasis Raspberry Pi 2 untuk Stasiun Bumi Agfianto Eko Putra; Unggul Adhi Nugroho; Bakhtiar Alldino Ardi Sumbada; Catur Atmaji
IJEIS (Indonesian Journal of Electronics and Instrumentation Systems) Vol 9, No 1 (2019): April
Publisher : IndoCEISS in colaboration with Universitas Gadjah Mada, Indonesia.

The design of Raspberry Pi 2-based APRS packets for UGM earth stations has been designed, which is much cheaper than commercial devices on the market. A TV tuner is used as a signal receiver, the receiver is accessed via a laptop wirelessly. A directed antenna with a controller is used to automatically point to the satellite. The test was carried out by receiving the APRS package emitted by the International Space Station (ISS) satellite and the LAPAN-A2 satellite. The results showed that the tool was able to get the ISS satellite APRS package with a total of 6 packages out of 10 packets emitted. The package received has an average amplitude of 1,200 Hz and 2,200 Hz which is much smaller than the overall audio amplitude. This indicates that there is high noise in the signal. While the APRS package from the LAPAN-A2 satellite has not been successfully obtained.

Co-Authors Agus Harjoko Bakhtiar Alldino Ardi Sumbada Budi Rahmani Catur Atmaji Haniah Haniah Hesti Khuzaimah Nurul Yusufiyah Ilona Usuman Nia Gella Augoestien Sri Hartati Tri Kuntoro Priyambodo Triyogatama Wahyu Widodo Unggul Adhi Nugroho

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Journal : Indonesian Journal of Electronics and Instrumentation Systems