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All Journal IAES International Journal of Artificial Intelligence (IJ-AI) Peronema Forestry Science Journal Singuda ENSIKOM Bulletin of Electrical Engineering and Informatics JPPM (Jurnal Pengabdian dan Pemberdayaan Masyarakat) Indonesian Journal of Electrical Engineering and Computer Science Community Development Journal: Jurnal Pengabdian Masyarakat Society Jurnal Pengabdian Rekayasa dan Wirausaha
Fahmi Fahmi
Universitas Sumatera Utara
Agriculture, Biological Sciences & Forestry Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Public Health Social Sciences

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Securing sensor data transmission with ethernet elliptic curve cryptography secure socket layer on STM32F103 device Seniman Seniman; Baihaqi Siregar; Rani Masyithah Pelle; Fahmi Fahmi
Indonesian Journal of Electrical Engineering and Computer Science Vol 22, No 1: April 2021
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v22.i1.pp507-515

Abstract

Currently there is no method, feature, or ability in securing data transmission in microcontroller systems and applications with client-server scheme communication, while major modern computer systems using secure socket layer (SSL) for establishing secure communication. However, ESP espressif based microcontroller has supported SSL communication to secure data transmission, but only works on the Wi-Fi network. A single-board computer based embedded system has fully supported SSL communication, but it costs a very high price. On the other hand, STM32F103 microcontrollers with a very affordable price even cheaper than the Arduino board has the opportunity to build secure data communication using SSL protocol based on MbedTLS library. In addition to wiznet W5100/W5500 ethernet shield, an STM32F103 SSL client device has been successfully built in this study. The SSL client device supports ECDHE ECDHA AES128 CBC SHA256 SSL cipher suite. The Apache web server must also be configured to support this cipher suite by generating OpenSSL ECC (elliptic curve cryptography) certificate. The system was tested with the LM35 analog temperature sensor, and as a result, the STM32F103 SSL client has successfully secured the data transmission to the Apache SSL web server. The communication time was 3 seconds for the first connection and 42 ms for the next data transmission.
PEMBENTUKAN KOMITE SEKOLAH DI KB TANAH MERAH KECAMATAN GALANG MELALUI PENDEKATAN ANTROPOLINGUISTIK Tasnim Lubis; Amalia Amalia; Fahmi Fahmi; Nurul Adilla Alatas Abus; Raisya Aulia Lubis; Muhammad Dafitra; Abiyulail Alatas Abus
Community Development Journal : Jurnal Pengabdian Masyarakat Vol. 3 No. 3 (2022): Volume 3 Nomor 3 Tahun 2022
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/cdj.v3i3.7197

Abstract

Komite sekolah merupakan sebuah lembaga yang bertujuan untuk membangun mutu sekolah agar sesuai dengan visi dan misi sekolah serta memiliki kekhasan yang dapat menjadi kekuatan dan daya tarik sekolah tersebut. Adapun tujuan dari kegiatan pengabdian ini adalah untuk membentuk komite sekolah di Kelompok Bermain (KB) Tanah Merah Kecamatan Galang. Pembentukan komite sekolah ini dilakukan untuk membantu menyelesaikan permasalahan yang dihadapi oleh para pengajar di Kelompok Bermain tersebut. Permasalahan utamanya adalah permasalahan sosial, yaitu permasalahan komunikasi antara pihak sekolah dan wali murid pihak sekolah kesulitan dalam menyampaikan kepada para wali murid bahwa visi misi dan tujuan Kelompok Bermain menitikberatkan pada peletakan dasar kearah pertumbuhan dan perkembangan fisik (koordinasi motorik halus dan kasar), kecerdasan daya pikir, daya cipta kecerdasan emosi, kecerdasan spiritual, sosial emosional (sikap dan perilaku serta agama), bahasa, dan komunikasi, sesuai dengan keunikan dan tahap-tahap perkembangan yang dilalui anak usia dini. Pendekatan antropolinguistik diaplikasikan dalam membentuk dan memilih anggota komite agar dapat bekerjasama dengan pihak sekolah dan medukung visi dan misi Kelompok Bermain. Dalam prosedur pembentukan komite dan pemilihan anggota dilakukan secara pendekatan komunikasi dengan pihak sekolah dalam mendapatkan informasi mendalam mengenai performansi anggota yang mewakili wali murid dan tokoh masyarakat. Selanjutnya dilakukan persamaan persepsi agar para anggota komite dapat melakukan tugasnya dengan baik.
Distributed formation control for groups of mobile robots using consensus algorithm Ryandika Afdila; Fahmi Fahmi; Arman Sani
Bulletin of Electrical Engineering and Informatics Vol 12, No 4: August 2023
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/eei.v12i4.3869

Abstract

The increasing implementation of autonomous robots in industries and daily life demands the development of a robust control algorithm that enables robots to perform their tasks successfully. Critical tasks such as rescue missions and area exploration require robots to work cooperatively in a formation to accomplish the tasks quickly. Moreover, the existence of obstacles in the environment requires all the robots' to rapidly process environmental changes to maintain the formation pattern. Thus, this paper introduces a distributed robot formation control system using the consensus algorithm that enables a group of robots to establish and maintain formations using only the local information of the robots. Furthermore, an obstacle avoidance algorithm based on the distance and angle between robots and obstacles is introduced to ensure safe navigation for the group of robots. The algorithm's effectiveness is demonstrated by a multi-robot system with randomly generated starting positions and velocities, where it is shown that the robots can agree on the control variables and establish the required formation while also avoiding obstacles in the environment.
Pengaruh Kepemimpinan Profetik dan Kepuasan Kerja terhadap Perilaku Kewargaan Organisasi (PKO) pada Karyawan Yayasan Prof. Dr. H. Kadirun Yahya di Medan: The Influence of Prophetic Leadership and Job Satisfaction toward Organizational Citizenship Behavior (OCB) on Employees of Prof. Dr. H. Kadirun Yahya Foundation in Medan Sherry Hadiyani; Abdhy Aulia Adnans; Ferry Novliadi; Fahmi Fahmi
Society Vol 9 No 1 (2021): Society
Publisher : Laboratorium Rekayasa Sosial, Jurusan Sosiologi, FISIP Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/society.v9i1.291

Abstract

This study aims to determine the influence of prophetic leadership and job satisfaction toward organizational citizenship behavior (OCB) on employees of Prof. Dr. H. Kadirun Yahya Foundation in Medan. The study used a survey model involving 64 employees of Prof. Dr. H. Kadirun Yahya Foundation in Medan. The data were analyzed using multiple linear regression. The results indicated that prophetic leadership and job satisfaction significantly positively influenced organizational citizenship behavior (OCB). The coefficient of the determinant (R²) of prophetic leadership and job satisfaction showed a value of 0.134, meaning that variation of organizational citizenship behavior is influenced by prophetic leadership and job satisfaction as much as 13.4%, and other factors influenced the rest.
Architectural design of an internet of things-based framework for road bike speed optimization Tigor Hamonangan Nasution; Opim Salim Sitompul; Fahmi Fahmi; Muhammad Anggia Muchtar
IAES International Journal of Artificial Intelligence (IJ-AI) Vol 15, No 3: June 2026
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijai.v15.i3.pp2125-2140

Abstract

This research aims to develop an internet of things (IoT) system framework to predict cyclists’ optimal speed in road cycling using multisensor data and machine learning. The primary issue raised is the lack of an intelligent system capable of integrating physiological, performance, and environmental data in real-time speeds for cyclists. The designed framework consists of four functional layers: data acquisition layer; data processing and feature layer; predictive modeling layer; and recommendations and output layer. Modeling is carried out using gradient boosting regression (GBR), performed end-to-end with validation on real cyclist activity data. The test results demonstrate that the system can provide precise optimal speed estimates and offer pacing zone recommendations that positively impact athlete performance strategies. This research contributes novelty in the form of an adaptive multivariate prediction approach and a modular IoT architecture design that can be implemented on cloud and edge platforms.
Penerapan Sistem Identifikasi Ekspresi Wajah Anak Penyandang Autisme Berbasiskan Citra Termal pada Sekolah Berkebutuhan Khusus di Banda Aceh Melinda Melinda; Yunidar Yunidar; Muhammad Irhamsyah; Muharratul Mina Rizky; Hendrik Leo; Fahmi Fahmi
Jurnal Pengabdian Rekayasa dan Wirausaha Vol 2, No 1 (2025)
Publisher : Universitas Syiah Kuala

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

Abstract

This community service activity aims to apply technology to detect facial expressions of children with autism through thermal images. The activity was carried out at My Hope Special Need Center, Banda Aceh, an educational center for orphans and children with special needs. By utilizing a combination of psychological and technological approaches, data collection is carried out in the form of thermal images of the faces of children with and without autism. The data obtained was analyzed using the Convolutional Neural Network (CNN) approach to develop an automatic facial expression detection method. The results of this activity show the potential use of facial recognition technology in supporting education and therapy for children with special needs.
Co-Authors . Melinda Abiyulail Alatas Abus Adnans, Abdhy Aulia Agus Purwoko Amalia Amalia Antonius Siswanto Antonius Siswanto Arman Sani Baihaqi Siregar Dodi Sumardi Eliyani Eliyani Fakhruddin Rizal Batubara Ferry Rahmat Astianta Bukit Gea Geby A.S Hendrik Leo Irvan Irvan Lubis, Tasnim Muhammad Anggia Muchtar Muhammad Dafitra Muhammad Irhamsyah Muharratul Mina Rizky Muliyadi Muliyadi Nasution, Tigor Hamonangan Novliadi, Ferry Nurul Adilla Alatas Abus Opim Salim Sitompul Pernantin Tarigan Pernantin tarigan Raisya Aulia Lubis Rani Masyithah Pelle Ryandika Afdila Salahuddin Salahuddin Sayed Munazzar Seniman Seniman Sherry Hadiyani Suherman Suherman Teguh Triantoro Tulus Tulus Ulfa Hasnita Yunidar Yunidar Zul Herri