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All Journal PROSIDING SEMINAR NASIONAL SAINSMAT Jurnal Ilmiah KOMPUTASI Jurnal Teknoinfo Journal of Science Innovare Komputasi: Jurnal Ilmiah Ilmu Komputer dan Matematika Jurnal Instrumentasi Prosiding Seminar Nasional Sains Teknologi dan Inovasi Indonesia (Senastindo) International Journal of Electronics and Communications Systems Journal of Engineering and Information Technology for Community Service SAINSMAT: Jurnal Ilmiah Ilmu Pengetahuan Alam JIPETIK:Jurnal Ilmiah Penelitian Teknologi Informasi & Komputer ABDIMAS Iqtishadia Jurnal Informatika dan Rekayasa Perangkat Lunak Jurnal Pengabdian Masyarakat Inovatif Jurnal Pengabdian Masyarakat Inovatif
Agus Ismangil
Universitas Pakuan
Religion Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Physics Social Sciences Other

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Message Encryption in Digital Images using the Zhang LSB Imange Method Saepulrohman, Asep; Ismangil, Agus; Heliawati, Leny
Komputasi: Jurnal Ilmiah Ilmu Komputer dan Matematika Vol 21, No 1 (2024): Komputasi: Jurnal Ilmiah Ilmu Komputer dan Matematika
Publisher : Ilmu Komputer, FMIPA, Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/komputasi.v21i1.9314

Abstract

Message encryption in digital images using the Zhang LSB Image method is a steganography technique that utilizes the Least Significant Bit (LSB) method to hide secret messages in the last bit of the image pixel. This method allows the use of images as a medium to convey hidden messages. The encryption process involves two main stages, namely message encryption and message hiding in an image. Message encryption is carried out using strong cryptographic algorithms to secure the authenticity and confidentiality of messages. Then, the encrypted message is inserted into the last bit of the image pixel using the LSB method. This is done by modifying the last bit value of the pixel so that the change is not visually visible to the human eye. To recover the original message, the message recovery process involves extracting the last bit of the modified image pixel and decrypting the message using the appropriate key. The Zhang LSB Image method is a steganography technique that is relatively simple but effective in hiding messages in digital images.
PENGEMBANGAN ALAT DETEKSI KANDUNGAN NUTRISI TANAH DENGAN SENSOR NPK DAN METODE HARDWARE PROGRAMMING Denih, Asep; Ismangil, Agus; Kurnia, Ema
Jurnal Teknoinfo Vol 18, No 2 (2024): Juli 2024
Publisher : Universitas Teknokrat Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33365/jti.v18i2.3860

Abstract

In the agricultural sector, soil nutrient content has a very important role. Many farmers rely on limited information when selecting soil for cultivation, which often leads to crop failure and losses due to mismanagement of the soil. To overcome this problem, this study created a soil nutrient detection system that can help farmers classify the soil nutrients needed. This research uses the Soil NPK Sensor, where the determination of nutrient content is carried out through three main parameters, namely the value of N, P, and K. The data obtained from these sensors is then processed by the Arduino Wemos Esp32 microcontroller using the Hardware Programming Method. This research aims to develop a soil nutrient content detection tool that includes measurements of Moisture, pH, Nitrogen, Phosphorus, and Potassium. The tool uses NPK sensors embedded in the ground to collect data, which is then sent to Blynk's pre-programmed platform. The test results showed the performance of the tool with average levels up and down for Nitrogen of 8.2mg/Kg, Phosphorus 3.2mg/Kg, and Potassium 5.8mg/Kg. Overall, the average NPK content in the soil was Nitrogen 75mg/Kg, Phosphorus 64.3333mg/Kg, and Potassium 67.1667mg/Kg. This data can be accessed and monitored by farmers or users through the Blynk application on smartphones or laptops. The main focus of the study is to evaluate the performance of detection tools and provide relevant information for farmers in managing their land more efficiently.
Penerapan Algoritma Deep Learning Pada Robot Deteksi Botol Ismangil, Agus; Gandhy, Abel; Saepulrohman, Asep; Putra, Gustian Rama; Drajar, Muhamamd Bintang; Taufiq, Muhammad; Azha, Arrazy
Jurnal Ilmiah Komputasi Vol. 23 No. 4 (2024): Jurnal Ilmiah Komputasi : Vol. 23 No 4, Desember 2024
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32409/jikstik.23.4.3759

Abstract

Dalam penelitian ini, algoritma deep learning digunakan untuk robot otonom yang mendeteksi botol. Pengembangan robot yang mampu berinteraksi dengan lingkungan bergantung pada kemampuan robot untuk mendeteksi objek. Dalam penelitian ini, algoritma deep learning digunakan untuk mengidentifikasi dan mendeteksi botol dalam berbagai kondisi pencahayaan dan sudut pengambilan gambar. Algoritma ini terutama menggunakan model berbasis jaringan saraf tiruan (neural networks), seperti Convolutional Neural Networks (CNN). Studi ini menunjukkan bahwa penggunaan model deep learning meningkatkan akurasi deteksi botol hingga 95%. Ini menunjukkan bahwa model ini dapat digunakan dengan baik dalam sistem robotika kontemporer
PROTOTIPE KONTROL BIOGAS PADA KOTORAN SAPI BERBASIS INTERNET OF THINGS (IoT) Ismangil, Agus; Adiguna, Gugun; Harsani, Prihastuti
Instrumentasi Vol 47, No 1 (2023)
Publisher : National Standardization Agency of Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31153/instrumentasi.v47i1.302

Abstract

Biogas is a chemical compound with the formula NH3, ammonia, one of which can be produced by cow dung. Cow manure needs to be taken care of so it does not interfere with human health. For this reason, a manure reservoir is needed to anticipate the spread of ammonia gas produced by the cow manure. This study aims to control cow dung using the Internet of Things through ultrasonic sensors and gas levels. A biogas control prototype tool has been made using the MPX 5700 sensor to detect gas pressure, the MQ-137 sensor to detect gas levels, and the HC-SR04 ultrasonic sensor combined with an active buzzer alarm to detect the level of fullness during filling. This prototype data processing uses Arduino Uno and Node MCU esp8266 as a link to the internet network to make it easier to send data. Then, the results are displayed on the website and the LCD. The solenoid valve component opens the gas channel cover and sewage channel. The results obtained from the aquarium water level obtained an average value of 7.8%, and it reached 2.44% for gas pressure. The ultrasonic sensor can automatically measure cow dung's filling height in the shelter. Moreover, the MQ137 gas level sensor is able to detect more than 25 ppm of the standard limit for spreading ammonia gas levels in the air. Keywords: biogas, cow dung, biogas control prototype, internet of things.
Alih Teknologi PKM Penjahit dengan Peningkatan Kualitas Pelayanan melalui CRM Saepulrohman, Asep; ismangil, Agus; Heliawati, Leny
ABDIMAS Iqtishadia Vol. 1 No. 2 (2023): ABDIMAS Iqtishadia
Publisher : Prodi Ekonomi Syariah Universitas Pamulang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32493/iqtis.v1i2.37338

Abstract

Dunia usaha dalam bentuk jasa merupakan salah satu bentuk bisnis yang memerlukan marketing untuk tetap dapat berjalan atau meningkatkan omset yang lebih baik lagi. UMKM Sarinah Tailor merupakan salah satu UMKM yang mengalami dampak penurunan ekonomi yang luar biasa sejak  pademi Covid-19. Kreativitas dan inovasi harus dimunculkan  sebagai wujud eksistensi di tengah pasca wabah pandemik yang masih ada sampai saat ini untuk tetap bertahan harus melakukan berbagai berbagai kreativitas. Salah satunya, digitalisasi sistem pemasaran, update trend fashion, memperbanyak relasi, memberikan layanan terbaik, bekerjasama dengan instansi, dan lain-lain. Metode dalam Pemberdayaan Kemitraan Masyarakt (PKM) ini difokuskan pada digiitalisasi sistem dan pengembangan konsep relasi dengan metode Customer Relation Management (CRM) yang memadukan bisnis antara porses, manusia dan teknologi. Hasil dari pemberdyaaan tersebut terbantunya mitradalam bidang marketing secara digital dan manajemen perubahan sistem pemsaran yang bersfiat kombinasi antara konsep pemaran sebelumnya dan sistem berbasis online. Hasil yang diperoleh membantu menarik prospek penjualan dan mengkonversi pelanggan yang sudah ada tetap loyal dan puas dengan pelayanan bisnis yang dijalankan oleh mitra.
The Effect of Cerium Doping on LiTaO3 Thin Film on Band Gap Energy Ismangil, Agus; Subiyanto, Subiyanto; Sudradjat, Sudradjat; Prakoso, Wahyu Gendam; Saepulrohman, Asep
International Journal of Electronics and Communications Systems Vol. 1 No. 2 (2021): International Journal of Electronics and Communications System
Publisher : Universitas Islam Negeri Raden Intan Lampung, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/ijecs.v1i2.7906

Abstract

Lithium tantalite LiTaO3 was grown on a Si Type-P (100) substrate by chemical solution deposition and spin coating methods at a speed of 3000 rpm for 30 seconds with an annealing temperature of 800 ° C, 900 ° C. This study aims to determine the effect of temperature variations on the band gap energy. The results show that the energy band gap value of the thin film has a significant impact on the interpretation of annealing temperature. It can be seen that a high energy band gap peak occurs at an annealing temperature of 900 ° C and a time of 15 hours of the energy band gap of 1,49 eV. This shows the effect of temperature variations on the energy band gap to move from the valence band to the conduction band, which will produce current.
Data integrity and security of digital signatures on electronic systems using the digital signature algorithm (DSA) Saepulrohman, Asep; Ismangil, Agus
International Journal of Electronics and Communications Systems Vol. 1 No. 1 (2021): International Journal of Electronics and Communications System
Publisher : Universitas Islam Negeri Raden Intan Lampung, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/ijecs.v1i1.7923

Abstract

The digital signature generation process begins with the creation of a public key and a private key. A public key is generated and published to verify the signature and calculate the hash value of the received document. At present, in the very fast development of information technology, quantum computers have emerged the ability to solve very large and complex amounts of data calculated by qubits, which when compared to quantum computers can work 10 minutes to work on a process that takes 1025 years on a computer. Therefore, the research focuses on how electronic signatures on documents have a reliable security system. The Digital Signature Algorithm (DSA) is a key algorithm used for digital signatures, which uses the Secure Hash Algorithm (SHA-1) to convert messages into message digest and parameters based on the ElGamal signature algorithm. The author also shows an example of digital signature encryption and decryption process by taking any numbers p = 59419 and q = 3301 to prove that the message can be formed and verified its authenticity.
Mobile Application for Zakat, Infaq and Sadaqah (ZIS) Management Based on Artificial Intelligence (AI) Chatbot Rama Putra, Gustian; Ismangil, Agus; Fahdin, Moch.; Arsal, Muhammad
Jurnal Informatika dan Rekayasa Perangkat Lunak Vol. 6 No. 2 (2025): Volume 6 Number 2 June 2025
Publisher : Universitas Teknokrat Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33365/jatika.v6i2.146

Abstract

As public awareness continues to grow regarding the importance of zakat, infaq and sadaqah (ZIS) as tools for social and economic welfare in Indonesia, there is an increasing need for innovation in how these charitable contributions are managed. One promising solution is the development of a mobile application that uses chatbot technology to make the process of giving and managing ZIS more efficient, transparent and user friendly. This study focuses on designing and building such a mobile app, using the waterfall model for software development. The process includes defining requirements, designing the system, analyzing the features, implementing the chatbot, and testing the application. The app is built to provide an interactive experience that helps users easily perform ZIS-related transactions, while also offering personalized information based on their needs. Testing results show that the app successfully supports essential functions like user registration, zakat payment, and access to ZIS information. It was also tested for compatibility and UI stability begin with Android 10 (Q) and above. While earlier versions such as Android 8 and 9 pose risks related to SDK support and performance, versions Android 12 to 14 demonstrate optimal performance and system stability. Android 15, still in beta, shows positive early results but requires further testing due to its ongoing development and potential SDK changes on multiple devices to ensure performance across different platforms. The findings indicate that the app runs smoothly, is easy to use, and is accessible to the broader community. Overall, this research presents a meaningful contribution to the modernization of ZIS management in Indonesia by leveraging digital technology to better serve the public.
Utilization of Solar Panel Energy for electricity in the AT-Taubah Musholla, West Cilebut Village Ismangil, Agus; Hidayatulah, Syarif; Saepulrohman, Asep
Jurnal Pengabdian Masyarakat Inovatif Vol. 1 No. 1 (2023): JPMI (Jurnal Pengabdian Masyarakat Inovatif)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/jpmi.v1i1.62

Abstract

The AT-Taubah Griya Cilebut Asri 2 Musholla in West Cilebut Village is a place of worship that focuses on its activities in the community to carry out worship, community gatherings, and recitation for children and youth, to increase friendship between West Cilebut village residents, in its activities it needs electricity to support, facilitating residents' activities at the AT-Taubah prayer room, with the application of solar power. making solar panels for use in prayer rooms aims to provide an alternative solution where PLN's electricity facilities are not good or there is no electricity. the results of testing solar panels can be used as an alternative energy where this solar panel utilizes sunlight, namely, to produce electrical energy of 5 volts 125 mA or 0.625 VA.
Utilization of Solar Panel Energy for electricity in the AT-Taubah Musholla, West Cilebut Village Ismangil, Agus; Hidayatulah, Syarif; Saepulrohman, Asep
Jurnal Pengabdian Masyarakat Inovatif Vol. 1 No. 1 (2023): JPMI (Jurnal Pengabdian Masyarakat Inovatif)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/jpmi.v1i1.62

Abstract

The AT-Taubah Griya Cilebut Asri 2 Musholla in West Cilebut Village is a place of worship that focuses on its activities in the community to carry out worship, community gatherings, and recitation for children and youth, to increase friendship between West Cilebut village residents, in its activities it needs electricity to support, facilitating residents' activities at the AT-Taubah prayer room, with the application of solar power. making solar panels for use in prayer rooms aims to provide an alternative solution where PLN's electricity facilities are not good or there is no electricity. the results of testing solar panels can be used as an alternative energy where this solar panel utilizes sunlight, namely, to produce electrical energy of 5 volts 125 mA or 0.625 VA.
Co-Authors Adiguna, Gugun Agung Prajuhana Putra Arie Qur’ania Arsal, Muhammad Asep Denih Asep Saepulrohman Azha, Arrazy Boldson H. Situmorang Dinar Munggaran Akhmad Drajar, Muhamamd Bintang Erniyati Erniyati Erniyati, Erniyati Fahdin, Moch. Febriansyah Ardyahadistia Gandhy, Abel Gustian Rama Putra Hidayatulah, Syarif Irma Anggraeni Irmansyah Irmansyah Irzaman, Irzaman Kurnia, Ema Leny Heliawati Lita Karlitasari M. Iqbal Suriansyah Muhammad Iqbal Muhammad Iqbal Muhammad Taufiq Mulyati Mulyati Mulyati Mulyati Nanang, Nanang Negara, Teguh Puja Prihastuti Harsani Putra, Gustian Rama Rama Putra, Gustian Siska Andriani Subiyanto Subiyanto Sudradjat Sudradjat Sudradjat Sudradjat Wahyu Gendam Prakoso Wahyu Gendam Prakoso, Wahyu Gendam