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Jurnal Media Informasi Teknologi
Published by CV Digital Innovation
ISSN : 3047521X     EISSN : 30466970     DOI : https://doi.org/10.69616/mit
Core Subject : Science, Education, Engineering,
Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Engineering
Media Informasi Teknologi has been published by Digital Innovation since January 2024. MIT contains manuscripts of research results in the fields of Information Technology and Computer Science. MIT is committed to publishing quality Indonesian language articles that can become the main reference for researchers in the fields of Information Technology and Computer Science. The scope of MIT is as follows: Domain Specific Frameworks and Applications : IT Management And IT Governance, e-Government, e-Healthcare, e-Learning, e-Manufacturing, e-Commerce, ERP dan Supply Chain Management, usiness Process Management. Smart Systems: Smart City, Smart Cloud Technology, Smart Appliances & Wearable Computing Devices, Robotic Systems, Smart Sensor Networks, Information Infrastructure for Smart Living Spaces, Intelligent Transportation Systems. Models, Methods and Techniques: Conceptual Modeling, Languages and design, Software Engineering, Information-centric Networking. Human Computer Interaction, Media, Game and Mobile Technologies, Data Mining, Information Retrievel, Information Security, Image Processing and Pattern Recognition, Remote Sensing, Natural Language Processing.
Arjuna Subject : Ilmu Komputer (semua kategori) - Ilmu Komputer (Lain-Lain)
Articles 20 Documents
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Design and Development of an Android-Based Interactive Learning Media for Grade VIII Statistics using the ADDIE Model Rahayu, Lestari; Prakisya, Nurcahya Pradana Taufik; Hatta, Puspanda; Wafa, Alfian Fawaidil; Herianto, Tulus Joseph
Jurnal Media Informasi Teknologi Vol. 2 No. 2 (2025): Oktober 2025
Publisher : Digital Innovation

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69616/mit.v2i2.236

Abstract

In the 21st-century learning era, students in several regions of Indonesia still use conventional media such as whiteboards and textbooks in mathematics education. This leads to student boredom and relatively low learning outcomes because they are more interested in playing with smartphones rather than studying. The solution to this problem is to utilize Information and Communication Technology (ICT) as a learning medium. The purpose of this research is to develop, evaluate the feasibility, and determine user perceptions of an interactive Android-based learning media for Grade VIII statistics in junior high school. This research follows a research and development design consisting of three stages: development using the ADDIE method, feasibility analysis, and user perception analysis. The result of the development stage is a valid interactive Android-based learning media. The feasibility analysis results indicate that the media is highly feasible with a rating of 92.5% from media experts and 95% from subject matter experts. The user perception analysis shows that 84.4% of students strongly agree with the usefulness aspect of this media, and 89.5% of students strongly agree with the ease of use aspect. Therefore, it can be concluded that this interactive learning media is worthy, user-friendly, and beneficial in the learning process.
Enhancing Sales Reporting with Data Warehousing and Visualization: A Case Study at Graha Mas Sarasvananda, Ida Bagus Gede; Maryani, Putu Dian; Arnawan, I Nyoman
Jurnal Media Informasi Teknologi Vol. 2 No. 2 (2025): Oktober 2025
Publisher : Digital Innovation

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69616/mit.v2i2.237

Abstract

This study aims to enhance the sales reporting process by implementing a data warehouse and interactive data visualization, with a case study at Graha Mas. The research adopts the Kimball Nine Step Methodology to guide the development of the data warehouse, supported by the Extract, Transform, Load (ETL) process using Pentaho Data Integration (PDI). Sales data sourced from Excel files undergoes batch processing to ensure data consistency and cleanliness before being stored in the warehouse. A star schema model was applied to structure the data warehouse, consisting of dimension tables for customers, products, and locations, and fact tables for sales categorized by customer, product, and city. The final data is visualized through Google Data Studio dashboards, enabling users to interactively explore sales trends by product, time period, and region. These visualizations assist business decision-makers in identifying high-performing products, monitoring regional sales distribution, and planning inventory more effectively. User acceptance testing (UAT) involving business users resulted in an acceptance score of 89%, indicating that the system meets user needs in terms of data clarity, accuracy, and usability. This research concludes that the proposed solution significantly improves the sales monitoring process at Graha Mas and can serve as a practical reference for similar businesses seeking to adopt cloud-based business intelligence solutions.
Control and Monitoring System for Lighting on Dragon Fruit Plants Kafriandeni, Okhari; Suhery, Cucu; Sari, Kartika; Malik, Abdul
Jurnal Media Informasi Teknologi Vol. 2 No. 2 (2025): Oktober 2025
Publisher : Digital Innovation

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69616/mit.v2i2.238

Abstract

Dragon fruit plants require prolonged sunlight exposure to grow and develop optimally. One common practice among farmers is to provide artificial lighting at night. However, this lighting is still operated manually, which is considered less effective. To address this issue, this study developed a lighting control and monitoring system for dragon fruit plants. The system uses a NodeMCU ESP32 as the main controller, an LDR sensor for light detection, a relay module for lamp control, and Firebase with Flutter as the storage platform and real-time monitoring interface. The system is designed to automatically turn on the lamp when the light intensity detected by the LDR sensor falls below a predetermined threshold and to turn it off when the light is sufficient. Implementation of the system over two weeks produced a positive response to dragon fruit flowering, with blossoms appearing at several points on the plants. Accuracy testing of both the sensor readings and the automatic control system was conducted by comparing the number of correct data points with the total collected data. From a total of 5,131 data points recorded during testing, 4,745 matched the system’s logic, resulting in an accuracy of 92.47%. This result indicates that the system performs reliably in providing artificial lighting to extend the photosynthesis process in dragon fruit plants.
Implementation of Door Lock System Using Keyword and RFID Suwanty, Erina; Hidayati, Rahmi; Sari, Kartika
Jurnal Media Informasi Teknologi Vol. 2 No. 2 (2025): Oktober 2025
Publisher : Digital Innovation

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69616/mit.v2i2.240

Abstract

Doors are an important element in a building that serve as a connection between rooms. Generally, door locking systems are still conventional, which have several shortcomings, such as being easy to duplicate. Therefore, this study developed a door locking system using a keyword and RFID (Radio Frequency Identification), as combining two security systems enhances security quality. Testing was conducted by collecting data on the performance of the Voice Recognition module at randomly selected distances ranging from 20 to 100 cm, with intervals of 20 cm between the user's voice and the microphone. Then, the RFID capability was tested under two different conditions: the first condition where the RFID card was not covered by a cover, and the second condition using a cover to simulate the condition of the card being inside a wallet or case, and finally, the overall system testing. Based on the test results conducted in this study, using both sensors with a total of 40 data points, the overall system achieved 100% accuracy.
One-Time Pad Cryptography for Secure Data Transmission in IoT Smart Door Using QR Code Asrofa, Muhammad Dito; Bahri, Syamsul; Kasliono, Kasliono
Jurnal Media Informasi Teknologi Vol. 2 No. 2 (2025): Oktober 2025
Publisher : Digital Innovation

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69616/mit.v2i2.248

Abstract

The increasing use of the Internet of Things (IoT) in security systems such as Smart Doors has created new challenges for data security, especially the risk of wiretapping through sniffing attacks. This research proposes applying the One-Time Pad (OTP) XOR algorithm as an encryption method to protect QR Code-based data transmission in the Smart Door system. The implementation is carried out on three main communication paths: sending UUID from the server to the user's website, sending the results of QR Code scanning from ESP32-CAM to the server, and sending instructions from the server to the ESP32 device. The test results show that the resulting ciphertext is always different even though the plaintext is the same, with a 0% algorithm identification success rate by Cipher Identifier and a 100% resistance level to brute force XOR, based on testing using dCode.fr tools. In addition, the encryption and decryption processes are very fast, with an average encryption time on the ESP32-CAM of 0.34 milliseconds and an average decryption time on the ESP32 of 0.17 milliseconds. These results show that the OTP XOR algorithm is able to disguise data against basic cryptanalysis attacks and can be run on IoT devices that have limited resources. In the future, it is suggested to apply better key management methods such as pre-shared key (PSK), key rotation, or key derivation function (KDF) to improve the security of key distribution in this symmetrical system. In addition, the security system can be improved through separating the OTP key transmission path using an approach such as Out-of-Band Key Exchange or asymmetric key wrapping with the RSA algorithm so that the key remains protected even if sniffing occurs.
Vigenere Cipher Cryptography for Secure Data Transmission in IoT Smart Door Using QR Code Riski Arasyid; Syamsul Bahri; Kasliono
Jurnal Media Informasi Teknologi Vol. 3 No. 1 (2026): Februari 2026
Publisher : Digital Innovation

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69616/mit.v3i1.250

Abstract

The Smart Door system based on the Internet of Things (IoT) using QR Code offers automated access but remains vulnerable to data sniffing attacks. This study implements the Vigenère Cipher algorithm to encrypt transmitted data and analyzes the ciphertext's resistance to attacks as well as its impact on communication delay. The system is built using ESP32-CAM as the QR scanner and NodeMCU ESP32 as the main controller, with encryption applied across three communication paths: ESP32-CAM to server, server to database, and server to ESP32. Testing involved data sniffing, delay analysis, and ciphertext evaluation using tools such as dCode and CryptoTool. From 20 sniffed QR Code results, 10 random samples were tested, and only 3 were recognized as Vigenère Cipher and none were decrypted successfully. In the server-to-ESP32 path, only 1 out of 10 ciphertexts was detected and all remained undeciphered. The average delay was recorded at 2.473 seconds (door unlocking) and 3.491 seconds (buzzer activation), with variations due to network stability. The results indicate that Vigenère Cipher effectively enhances data security in resource-constrained IoT devices, although delay optimization is needed to meet real-time system requirements.
Assessment of Internet Service Quality on Campus and Its Impact on Student Satisfaction Ahmad Faris Al Faridzin; Andi Muhammad Nur Hidayat
Jurnal Media Informasi Teknologi Vol. 3 No. 1 (2026): Februari 2026
Publisher : Digital Innovation

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69616/mit.v3i1.256

Abstract

Internet service quality plays an important role in supporting digital-based academic activities in higher education, including online learning, access to scientific journals, and academic communication. However, students still frequently experience network problems such as slow and unstable connections, high latency, jitter, and packet loss, which may affect the effectiveness of the learning process. This study aims to evaluate the quality of campus internet services based on Quality of Service (QoS) parameters and analyze their relationship with student satisfaction toward campus internet services. The study employed a quantitative approach using observation and survey methods. QoS measurements were conducted using Speedtest and Pingtest at several campus locations during peak and non-peak hours, while student satisfaction data were collected through an online survey involving 120 respondents. The data were analyzed using descriptive analysis and Pearson correlation analysis. The results showed that internet network quality decreased during peak hours, indicated by lower internet speed and higher latency, jitter, and packet loss. The survey results also revealed that most students were still dissatisfied with the quality of campus internet services. Correlation analysis indicated that internet speed had a positive relationship with student satisfaction, while latency, jitter, and packet loss had negative relationships with user satisfaction levels. Based on the findings, increasing bandwidth capacity, adding Wi-Fi access points, and conducting regular network maintenance are necessary to improve the quality of campus internet services.
Implementation of Failover in a Master-Slave Architecture for Soil Moisture Sensor Data Transmission Ajeng Fitria; Uray Ristian; Syamsul Bahri; Ida Bagus Gede Sarasvananda
Jurnal Media Informasi Teknologi Vol. 3 No. 1 (2026): Februari 2026
Publisher : Digital Innovation

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69616/mit.v3i1.262

Abstract

Development of Internet of Things (IoT) offers significant opportunities in the agricultural sector by enabling automatic and efficient monitoring of crop conditions. A common issue in IoT-based monitoring systems utilizing a master-slave architecture is the loss of data communication when the master node experiences a failure, which reduces system reliability. This research develops a plant monitoring system based on a master-slave architecture with a failover method using ESP32 and HTTP communication. The system consists of three master nodes, each handling two slave nodes, with a total of twelve soil moisture sensors. Data from the sensors are transmitted by the slave nodes to the master nodes, then forwarded to a cloud server. The failover method functions to maintain communication continuity by rerouting data transmission when a master node experiences a failure. The test results show that the system without failover experienced data loss and communication downtime equal to the duration of the master node failure, while the integration of IoT and failover method maintained communication with an average packet loss of 2.22% and a switching delay of approximately 0.78 seconds.
Implementation of Cryptography using the Rivest Cipher (RC4) Algorithm on QR Code Security for E-Locker Verification Abang Muhammad Sayudi Hamzah; Uray Ristian; Kasliono
Jurnal Media Informasi Teknologi Vol. 3 No. 1 (2026): Februari 2026
Publisher : Digital Innovation

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69616/mit.v3i1.263

Abstract

The Internet of Things (IoT) based E-Locker system with QR Code authentication offers ease of access, but is vulnerable to threats to the security of Universally Unique Identifier (UUID) data on locker access. This study aims to implement cryptography with the Rivest Cipher 4 (RC4) algorithm to secure UUID data on the server and determine the authentication time on the QR Code barcode to the ESP32-CAM. The RC4 algorithm uses a static key for the user. The encryption process is carried out by the Mobile with the KSA, PGRA and Base64 processes to produce ciphertext. The decryption process is carried out by the server through the Base64, KSA and PGRA processes to produce Plaintext. The test results on the RC4 UUID algorithm stored in the database are sent to the Mobile for encryption and decryption processes where QR Code authentication to the ESP32-CAM sends data to the server for data validation if successful it sends back a notification to the Buzzer once, if it fails it sounds twice. The results of the security test, sniffing was successful using the original UUID data converted to a QR Code barcode and the QR Code was authenticated to the ESP32-CAM so that it produced 2 sounds on the buzzer so that the locker access failed. The data used for authentication was 40 data from each user authenticated 10 times, with the lowest authentication time of 2.83 seconds, the longest authentication time of 12.41 seconds, and an average time of 5.42 seconds.
Implementation of Event-Driven Architecture in Soil Moisture Sensor Data Transmission Based on Master–Slave Cut Chairunnisa Maulidia; Hafiz Muhardi; Uray Ristian; Nirsal Nirsal; Idawati Idawati
Jurnal Media Informasi Teknologi Vol. 3 No. 1 (2026): Februari 2026
Publisher : Digital Innovation

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69616/mit.v3i1.267

Abstract

The decline in chili crop productivity is partly caused by Soil Moisture that is not properly monitored. Manual monitoring is considered less effective, while IoT systems with periodic data transmission tend to be inefficient. This study develops a Soil Moisture monitoring system based on an Event-Driven master–slave architecture using four ESP32 devices. Three act as slaves connected to Soil Moisture sensors, and one serves as the master responsible for data transmission. The Event-Driven method applies two mechanisms: Batch Update every 5 minutes under normal conditions and Immediate Alert when moisture values fall outside the ideal range of 50–70%. System performance is compared with a non-Event-Driven method based on QoS parameters: delay, jitter, payload, and the number of data packets. Testing is conducted through four scenarios, each lasting one hour. Results show that the Event-Driven system is more efficient. The average delay and jitter are 547.35 ms and 557.05 ms, lower than the non-Event-Driven system (3,340.73 ms and 1,755.71 ms). In addition, fewer packets are sent with larger payloads. Although it does not yet meet the TIPHON standard, this method can transmit data immediately during significant changes while reducing the number of transmitted packets.

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