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All Journal INTENSIF: Jurnal Ilmiah Penelitian dan Penerapan Teknologi Sistem Informasi RESLAJ: RELIGION EDUCATION SOCIAL LAA ROIBA JOURNAL Jurnal Bumigora Information Technology (BITe) JTEIN: Jurnal Teknik Elektro Indonesia Infotech: Jurnal Informatika & Teknologi Jurnal Elkasista Indonesian Community Journal Jurnal Fortech Jurnal: International Journal of Engineering and Computer Science Applications (IJECSA) Electrician : Jurnal Rekayasa dan Teknologi Elektro Jurnal Pendidikan Sains Indonesia (Indonesian Journal of Science Education) Aspirasi : Publikasi Hasil Pengabdian dan Kegiatan Masyarakat IRDH International Journal of Technology, Agriculture and Natural Sciences (IRDH IJTANS) TEKNOSAINS: Jurnal Sains, Teknologi dan Informatika Nucleus Journal
Dekki Widiatmoko
Politeknik Angkatan Darat
Religion Agriculture, Biological Sciences & Forestry Humanities Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Public Health Social Sciences Other

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Omni wheel robot movement exploration using a control system for military surveillance with integrated sensor Jeffri Kurniawan; Mokhammad Syafaat; Kasiyanto Kasiyanto; Dekki Widiatmoko; Rafi Maulana; Zihar Nanggala Putra
TEKNOSAINS : Jurnal Sains, Teknologi dan Informatika Vol 12 No 1 (2025): TEKNOSAINS: Jurnal Sains, Teknologi dan Informatika
Publisher : LPPMPK- Universitas Muhammadiyah Cileungsi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37373/tekno.v12i1.1233

Abstract

Industry 4.0 is bringing about a rapid advancement in technology, particularly in the military industry. This robot was designed to reduce danger to TNI members while monitoring military operations more swiftly and safely. The application of IMU sensors for acceleration movements, measurement of control system error values, and trajectory tracking with multiple pathways are the three modes of the robot control system observed in this study. We assess each of these modes using an analytical observational method. In addition to an MPU 6050 ultrasonic and gyro sensor to detect movement using an accelerometer and gyroscope, the robot is equipped with a rotational encoder sensor to link the DC motor rotation. The PID control approach uses inverse kinematics to regulate the DC motor. The exam is administered on a track that has squares, triangles, and circles as obstacles. According to test results, the tachometer's inaccuracy rate in RPM is about 1.2% higher than the rotary encoder. The movement success percentage for the omni-wheel robot is 89.31%. Square trajectories have an average error rate of 11%, circular trajectories of 15%, and triangular trajectories of 4.17%. The motor rotation speed is most stable along the triangle path. Overall, this study demonstrates the accuracy and speed with which a mobile omni-wheel robot equipped with a control system can peek. This could raise military operations' level of efficiency and safety
Cryptographic security analysis of the shift password method using the google colab application Rokhim Utomo; Mokhammad Syafaat; Kasiyanto Kasiyanto; Dekki Widiatmoko; Rafi Maulana
TEKNOSAINS : Jurnal Sains, Teknologi dan Informatika Vol 12 No 1 (2025): TEKNOSAINS: Jurnal Sains, Teknologi dan Informatika
Publisher : LPPMPK- Universitas Muhammadiyah Cileungsi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37373/tekno.v12i1.1231

Abstract

The study of information security methods to prevent unauthorized parties from reading it is known as cryptography. The Caesar Cipher method is a low-tech yet well-established cryptography technique. One of the earliest and most basic cryptographic methods is the Caesar Cipher, which substitutes a different letter with a specific alphabetic difference for each letter in the text. The Caesar Cipher is simple to comprehend and use, but it has a lot of flaws that leave it open to frequency analysis and brute force attacks. The purpose of this study is to use the Google Colab tool to examine the cryptographic security of the Caesar Cipher technique. In this study, Google Colab—a platform that offers a robust and user-friendly Python programming environment—was utilized to construct and evaluate the Caesar Cipher algorithm. This study design combines an experimental strategy with a descriptive method. The Caesar Cipher technique is put into practice, encryption and decryption simulations are run, and character frequency analysis and brute force assaults are used to analyze security flaws. The study's findings demonstrate that the character distribution pattern is preserved when character frequencies in the original and encrypted text are seen, making it simple for attackers to use frequency analysis to crack the password. This suggests that, in the context of high information security, the Caesar Cipher should not be used. Shift passwords are therefore inappropriate for use in contemporary security applications due to their serious flaws
ANALYSIS OF THE KALMAN FILTER METHOD ON A GYROSCOPE TO REDUCE NOISE TO IMPROVE RESPONSIBILITY IN A SHOOTING Dekki Widiatmoko; Rian Putra Eka Setiawan; Hairani Hairani; rokhim utomo
Elektronika Sistem Senjata Vol 6 No 2 (2025): Jurnal Elkasista
Publisher : Pustaka Poltekad

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54317/elka.v6i2.671

Abstract

This study aims to analysis how effective the Kalman Filter method is in reducing noise in gyroscope signals to improve the responsiveness of a shooting simulator. By using the Kalman Filter, the data from the gyroscope becomes more accurate, leading to a more realistic shooting simulation experience. The clearer signal not only improves orientation accuracy but also reduces the system's response time, making the simulator faster and more precise in reacting to user inputs. The results show that the Kalman Filter significantly enhances the performance of the shooting simulator, which is crucial in military and security settings where accuracy and quick response are essential.
TIMING SYSTEM FOR STUDENT NCO ACTIVITIES OF POLTEKAD USING ATMEGA328 BASED RTC Dekki Widiatmoko; Agung Tri Wicaksono; Miftahul Walid; Rian Putra Eka Setiawan
Elektronika Sistem Senjata Vol 6 No 2 (2025): Jurnal Elkasista
Publisher : Pustaka Poltekad

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54317/elka.v6i2.672

Abstract

This research aims to develop an activity time marking system specifically designed for the daily activities of Poltekad Student Non-Commissioned Officers such as prayer times, meal times, sports roll call times and checking roll times, using an ATmega328 microcontroller. This system will use an RTC (Real-Time Clock) module to maintain accurate time and provide notifications via sound notification or alarm. By utilizing assistive technology, this system will help users remember and organize their various daily activities. Microcontroller programming and hardware interfacing are an integral part of the development of this system, which is expected to increase accessibility and timeliness when carrying out an activity.
Co-Authors Ade Setiawan Afif Achmad Afif Achmad Agung Tri Wicaksono Albert Wahyu Sianturi Alfarizi, Rafi Maulana Alfi Fadliana Andik Sugiarta Aripriharta - Candra Pradhana Dodo Irmanto Eriski Prawira Fajar Dermawan Tamboenan Fajar Kholid Fajar Kholid Fajar Kholid Fajar Kholid Farahdilla Andhika Fitriani, Indah Martha Hairani Hairani Heri setiawan Iqra Asif Irwansyah, Achmad Afif Jeffri Kurniawan Jeffri Kurniawan Jeffri Kurniawan Jeki Saputra Jerry Barto Naga Kasiyanto Kasiyanto Kasiyanto, Kasiyanto Kholid, Fajar Maulana, Rafi Mokhammad Syafaat Mokhammad Syafaat Mokhammad Syafaat Mokhammad Syafaat Mokhammad Syafaat Muchamad Wahyu Prasetyo Muhamad Risal Duwila Muhammad Cahyo Bagaskoro Muzakki, Arif Nugraha Gumilar Nur Rachman Supadmana Muda Omar, Saodah Permana, Machmud Indra Pradigdo, Dedi Putra, Agus Dwi Rachmat Setiawibawa Radianto, Riky Rafi Maulana Rafi Maulana Rafi Maulana Al-farizi Rafi Maulana Al-farizi Rendi Novendra Rian Putra Eka Setiawan Riandi Gustiawan Gustiawan Ridho Herasmara Rizky Safrizal Akbar rokhim utomo Rokhim Utomo Sa'id Ainul Yaqin Sridaryono, Aguk Sujito Sujito Syafaat, Mokhamad Syafaat, Mokhammad Syafrian Herlukman Wahyu Imam Fauzi Wibisono Walid, Miftahul Winardi Aries Wira Ahmad Wirayudha, Putra Wisesha, Pandhu Purba Zihar Nanggala Putra