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All Journal JATI (Jurnal Mahasiswa Teknik Informatika) JSE Journal of Science and Engineering
Hallim, Abd
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Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Engineering Mechanical Engineering Transportation

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RANCANG BANGUN IOT SMART PET FEEDER UNTUK PEMANTAUAN DAN PENGATURAN PAKAN HAMSTER Farhat Jundullah, Muhammad; Arbansyah, Arbansyah; Hallim, Abd
JATI (Jurnal Mahasiswa Teknik Informatika) Vol. 9 No. 4 (2025): JATI Vol. 9 No. 4
Publisher : Institut Teknologi Nasional Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36040/jati.v9i4.13861

Abstract

Pemilik hamster sering mengalami kesulitan dalam memberikan pakan secara teratur, yang dapat memengaruhi kesehatannya. Hamster memiliki pola makan yang berbeda dengan manusia, sehingga pemberian pakan yang tidak terjadwal dapat menyebabkan kekurangan atau kelebihan pakan. Untuk mengatasi masalah ini, diperlukan sistem otomatis yang dapat memastikan pemberian pakan sesuai kebutuhan hamster. Penelitian ini bertujuan untuk merancang dan membangun sistem Smart Pet Feeder berbasis IoT yang dapat mengatur dan memantau pemberian pakan secara otomatis. Sistem ini menggunakan ESP32 DevKit sebagai mikrokontroler utama untuk mengontrol motor servo dalam mendistribusikan pakan, serta ESP32-CAM untuk memantau kondisi pakan dan aktivitas hamster melalui aplikasi Blynk. Notifikasi otomatis dikirim melalui bot Telegram untuk memastikan pemberian pakan sesuai jadwal. Metode penelitian meliputi perancangan perangkat keras dan lunak, implementasi sistem, serta pengujian kinerja ESP32 DevKit, ESP32-CAM, dan koneksi aplikasi Blynk. Hasil pengujian menunjukkan bahwa sistem berfungsi optimal dalam memberikan pakan sesuai jadwal, menampilkan pemantauan real-time, serta mengirimkan notifikasi otomatis. Meskipun terdapat kendala kecil pada koneksi Blynk, sistem tetap berjalan dengan baik.
Sentiment Analysis, Classification of Twitter Tweets of the Constitutional Court Decision on Vice Presidential Candidates Using Naïve Bayes Method Nurlita, Nurlita; Rudiman, Rudiman; Hallim, Abd
JSE Journal of Science and Engineering Vol. 3 No. 2 (2025): Journal of Science and Engineering
Publisher : LPPI Universitas Muhammadiyah Kalimantan Timur (UMKT)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30650/jse.v3i2.3894

Abstract

The development of information technology has had a significant impact on the acceleration and ease of exchanging information and communication. The emergence of popular social media platforms, such as Twitter, Facebook, Instagram, Youtube in order to explore trending and popular information. Social media has become a reference for the Indonesian people in considering all possibilities that are happening, including public unrest against decision-making that is not in accordance with the norms and ethics within the scope of the constitutional court. Decisions issued by the Constitutional Court (MK) have the potential to trigger significant reactions and debates in society. In this research, we conducted a sentiment analysis on the current issue of the Constitutional Court, where the problem is that many people doubt the decisions taken and many also support the decision so that the virtual world becomes a place for people to express their thoughts about it, especially on the Twitter platform. In expressing their thoughts on the Twitter platform will display Positive, Negative, and Neutral expressions. The method used to see the results of the analysis of the Constitutional Court Decision is the Naïve Bayes method to get accurate results. By using 540 data, the total data of F1 results is the average of precission and recall: AUC of 93.8%, Classification accuracy (CA) of 21.7% Model accuracy of 97.1% Recall of 21.7% F1 score of 14.8%, with a total of 540 data, a total of 10 negative actual data, while 7 positive and 523 neutral. With these results, many people respond to the results of the Constitutional Court's decision Neutral.
Steganography for Data Hiding in Digital Audio Data Using Combined Least Significant Bit and Blowfish Method Pradana, Rizal; Hallim, Abd; Faldi, Faldi
JSE Journal of Science and Engineering Vol. 3 No. 2 (2025): Journal of Science and Engineering
Publisher : LPPI Universitas Muhammadiyah Kalimantan Timur (UMKT)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30650/jse.v3i2.3924

Abstract

Abstract – The purpose of this research is to examine the utilization of steganography and Blowfish encryption to maintain message confidentiality in digital audio files. This research combines LSB encryption and Blowfish algorithm, focusing on embedding text into audio, with PSNR analysis. Results show the effectiveness of the method without significantly affecting audio quality, with PSNR values above 50dB. The application of Blowfish and LSB to audio files successfully secures the message, and the use of base64 increases the security level.
Co-Authors Arbansyah, Arbansyah Faldi, Faldi Farhat Jundullah, Muhammad Nurlita, Nurlita Pradana, Rizal Rudiman, Rudiman