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Pemanfaatan Aplikasi Online untuk Ujian Akhir Mahasiswa Berbasis Website pada Program Studi Diploma-3 Teknik Telekomunikasi Politeknik Negeri Ujung Pandang Sandryones Palinggi; Riesa Krisna Astuti Sakir; Sufianti Munirman
KOLONI Vol. 1 No. 3 (2022): SEPTEMBER 2022
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/koloni.v1i3.542

Abstract

Learning in the Industrial Revolution 4.0 era indirectly encourages overall changes in the teaching and learning process. The evolution that has occurred has had a big impact so it is hoped that teaching staff and students will be more skilled in using digital platforms as learning media. This research aims to design and gain benefits from online applications for Website-based Final Semester Examinations. With the issue of using single-use paper in the Final Exam for Students of the D3 Telecommunications Engineering Study Program at State Polytechnic of Ujung Pandang, it can be resolved by using a website-based application in implementing the Final Exam as a solution that can be implemented later. The method used in this research is the development method or Research and Development (R&D), where this method focuses on developing an application, or modifying it, so that the objectives of this research can be achieved. The intended application design aims to make it easier for students to access and carry out various types of activities on a website portal that can be controlled and monitored. In completing this research, Moodle was chosen to resolve an issue that was raised, and it is hoped that it can be the right solution as a concrete step for the contribution of lecturers, especially in resolving issues related to the continued use of single-use paper in the final semester exams for students of the D3 Telecommunications Engineering Study Program. From the issues raised, the use of online applications for website-based student final exams in the D3 Telecommunications Engineering Study Program is a solution that can be implemented as soon as possible.
Analisis Latensi dan Keandalan Notifikasi Visual Berbasis ESP32-CAM dan Telegram Bot API untuk Monitoring Keamanan Ruangan Sufianti Munirman; Riesa Krisna Astuti Sakir; Nurfitri Nurfitri; Airin Dewi Utami Thamrin; Nining Satriani
Jupiter: Publikasi Ilmu Keteknikan Industri, Teknik Elektro dan Informatika Vol. 4 No. 4 (2026): Juli : Jupiter: Publikasi Ilmu Keteknikan Industri, Teknik Elektro dan Informat
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/jupiter.v4i4.1600

Abstract

Instant messaging platforms are increasingly used as notification channels for low-cost Internet Of Things security devices, yet the end-to-end latency of such channels is rarely measured and almost never decomposed into its constituent stages. This study analyses the latency and reliability of a visual notification channel that couples an ESP32-CAM module with the Telegram Bot API in a room monitoring prototype controlled by a Wemos D1 R32. An experimental quantitative approach was used. Image capture was triggered by an ultrasonic proximity threshold of 100 cm and tested at six object distances from 20 cm to 120 cm; the interval between triggering and the appearance of the photograph in the recipient chat was recorded. Descriptive statistics, coefficient of variation, Pearson correlation, and an analytical latency budget derived from the firmware structure were used for analysis. All triggers inside the threshold zone produced a successfully delivered photograph and an accompanying distance message, giving a delivery success rate of one hundred percent, whereas the object at 120 cm correctly produced no transmission. End-to-end latency ranged from 6.03 s to 10.45 s with a mean of 8.09 s, a standard deviation of 1.80 s, and a coefficient of variation of 22.3%. The correlation between latency and object distance was weak and statistically insignificant, confirming that latency is dominated by the secure transport layer and the image payload rather than by the sensing stage. Reducing the capture resolution and reusing the secure session are recommended as the most effective optimisation measures.