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All Journal Journal of Applied Information, Communication and Technology (JAICT) Prosiding Seminar Nasional Sains Teknologi dan Inovasi Indonesia (Senastindo) Jurnal Pengabdian Teknik dan Sains (JPTS)
Abu Hasan
Politeknik Negeri Semarang
Computer Science & IT Control & Systems Engineering Engineering Mechanical Engineering Other

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Design of a Water Sprinkler System and Monitoring of Soil Moisture in Potato Cultivation of the Kledung Horticulture Seed Center based on the Internet of Things (IoT) Eko Supriyanto; Endro Wasito; Abu Hasan; Dhea Ernanda; Karenza Balqis
JAICT Vol 5, No 2 (2020)
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/jaict.v5i2.2023

Abstract

Potato is one of horticultural commodities that plays an important role to assure food security, mostly upper place such as plateau. Monitoring soil’s moisture and soil’s pH in potato plant tendance is the key point for good growth and development of potatoes. Soil moisture in a land is affected by the level of water contain in the soil. For that reason automatic monitoring system is needed to observe the land condition where the potato seedling is planted and a moisture control system that can ease the work. 40% to 70% of soil moisture is ideal for potatoes plant. The development of this design make use of wireless fidelity (wifi). This device keep the dampnes know less than 40%. If it’s less than 40%, the sensor will detected so the watering system will running and system will stop if reaching 70%. This design can monitor pH, temperature and humidity through the android application. With an accuracy level of the pH sensor for measuring 95.85% of acidity, the capacitive sensor for measuring soil moisture is 96.6% and DHT11 for measuring temperature and humidity at 99.75%.
Nutrient Film Technique (NFT) Hydroponic Monitoring System Helmy Helmy; Arif Nursyahid; Thomas Agung Setyawan; Abu Hasan
JAICT Vol 1, No 1 (2016)
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2745.355 KB) | DOI: 10.32497/jaict.v1i1.425

Abstract

Plant cultivation using hydroponic is very popular today. Nutrient Film Technique (NFT) hydroponic system is commonly used by people. It can be applied indoor or outdoor. Plants in this systemneed nutrient solution to grow well. pH, TDS and temperature of the nutrient solution must be check to ensure plant gets sufficient nutrients. This research aims todevelop monitoring system of NFT hydroponic. Farmer will be able to monitor pH, TDS and temperature online. It will ease farmer to decide which plant is suitable to be cultivated and time to boost growth.Delay of the system will be measured to know system performance. Result shows that pH is directly proportional with TDS. Temperature value has no correlation with pH and TDS. System has highest delay during daylight and afternoon but it will decline in the night and morning. Average of delay in the morning is 11 s, 28.5 s in daylight, 32 s in the afternoon and 17.5 s in the night. 
Pengaruh Penggunaan Komposit –Rami Sebagai Penyerap Gelombang Radar Pada Stealth Technology Gayuh Pangestu Putri; Eddy Triyono; Budi Basuki S; Abu Hasan; Slamet Widodo; Suhendro Suhendro
Prosiding Seminar Nasional Sains Teknologi dan Inovasi Indonesia (SENASTINDO) Vol 1 (2019): Prosiding Seminar Nasional Sains Teknologi dan Inovasi Indonesia (Senastindo)
Publisher : Akademi Angkatan Udara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (694.841 KB)

Abstract

Stealth technology (teknologi siluman) merupakan salah satu teknologi yang digunakan untuk menghilangkan jejak dari deteksi RADAR musuh dengan cara memperkecil RADAR Cross Section (RCS) pada target. Salah satu cara untuk memperkecil nilai RCS dapat menggunakan RADAR Absorber Material (RAM). maka dari itu munculah Inovasi membuat teknologi siluman dengan menggunakan material komposit ekonomis bersifat dielektrik berbahan rami dengan campuran bahan komposit serbuk Alumina (Al2O3) dan Resin Epoxy kemudian disebut dengan Komposit-Rami. Oleh karena itu, pada penelitian ini dimaksudkan untuk mengetahui nilai reflection loss Komposit-Rami dalam menyerap gelombang RADAR. Pengujian dilakukan pada rentang frekuensi 2 sampai 12 GHz dikarekterisasi dengan Vector Network Analyzer (VNA) menggunakan S-Parameter (S11). Dari hasil penelitian Komposit-Rami dengan ketebalan 5mm paling efektif untuk digunakan sebagai RADAR Absorber Material (RAM) dengan penyerapan optimum pada frekuensi S-Band sebesar -15,158 dB, C-Band sebesar -16,398 dB dan X-Band sebesar -23,135 dB. sedangkan dari tiga band frekuensi tersebut, nilai reflection loss yang tertinggi dan optimum terdapat pada frekuensi X-Band dengan ketebalan 5mm yaitu sebesar -23,135 dB dengan Lebar pita penyerapan 1000 MHz dan memiliki persentase penyerapan sebanyak 93,1 %. Sehingga Komposit-Rami sangat efektif digunakan sebagai RAM pada frekuensi X-Band.
Design Build Temperature and Humidity Monitoring Internet of Things based for Optimization Oyster Mushroom Growth Catur Budi Waluyo; Alsah Nur Laila; Sasya Puteri Setyahadi; Sarono Widodo; Abu Hasan; Thomas Agung Setiawan; Budi Basuki Subagio; Muhlasah Novitasari Mara
JAICT Vol. 12 No. 1 (2026): JAICT
Publisher : Politeknik Negeri Semarang

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Abstract

Oyster mushroom (Pleurotus ostreatus) cultivation in Indonesia faces challenges in maintaining stable temperature and humidity in the growing room, particularly because monitoring is still performed manually, which increases the risk of errors. To address this issue, Sasya Puteri Setyahadi and Alsah Nur Laila designed an Internet of Things (IoT)-based temperature and humidity monitoring system that can be accessed in real time and remotely. The system uses the SHT31 sensor for data acquisition, an ESP32 microcontroller as the main processor, and the Firebase platform for data storage and visualization. Data are displayed through a web application and are integrated with an automatic watering response when parameter values fall outside the optimal range of 16–30 °C for temperature and 80–95% for humidity. Testing results showed that the system is capable of reading and transmitting data accurately and quickly. The main contribution of this study is the development of an environmental monitoring system for oyster mushroom cultivation with an automatic notification feature based on threshold values, which can serve as a foundation for future automated control systems. Comparative testing showed that the SHT31 sensor had an average temperature measurement error of 1.427% (accuracy 98.573%) and an average humidity measurement error of 2.017% (accuracy 97.983%) compared to the HTC-1 reference instrument. Meanwhile, the JSN-SR04T water level sensor achieved an average error of 2.076% (accuracy 97.924%). Furthermore, the system demonstrated an average data transmission delay of 1488.89 ms and an average jitter of 11.588 ms. Overall, the high accuracy across tests, combined with relatively low delay and jitter values, indicates that the system performs effectively and reliably in maintaining the mushroom house environment within the ideal range required to support optimal oyster mushroom growth.
Implementation and Analysis of Quadrature Amplitude Shift Keying Modulation Using SDR Devices for Wireless Communication Systems Rizkha Rochmatika; Jeffri Pratama; Slamet Mulyadi; Abu Hasan; Irfan Mujahidin; Muhlasah Novitasari Mara; Filda Hulwani Dewi
JAICT Vol. 12 No. 1 (2026): JAICT
Publisher : Politeknik Negeri Semarang

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Abstract

This research aims to implement and analyze the performance of Quadrature Amplitude Shift Keying (QASK) modulation in wireless communication systems using Software Defined Radio (SDR) devices. This research uses ADALM-PLUTO as the transmitter and RTL-SDR as the receiver, with signal processing performed through GNU Radio software. The main focus of this research is to evaluate the implementation of 4-QASK modulation in wireless data transmission at several different frequencies (300 MHz, 500 MHz, 1 GHz, and 1.5 GHz) and different distances (1 meter to 5 meters), as well as to measure transmission quality using the Packet loss and Received Signal Strength Indicator (RSSI) parameters. The test results show that this system is capable of transmitting data with good quality, with RSSI values ranging from 51.41 dBm to -62.59 dBm, indicating good to very good signal quality. This test also showed that the further the distance between the transmitter and receiver, the lower the signal reception quality, especially at higher frequencies, indicating a significant influence of distance and frequency on the received signal strength. Based on the results obtained, it can be concluded that QASK modulation using SDR, particularly 4-QASK, is effective in wireless communication with good performance at short to medium distances.
Penerapan Internet of Things pada Sistem Kendali Lampu Berbasis Mobile di Desa Sampetan Kecamatan Gladagsari Kabupaten Boyolali Eko Supriyanto; Abu Hasan; Tulus Pramuji; Tri Raharjo Yudantoro; Hanny Nurrani
Jurnal Pengabdian Teknik dan Sains (JPTS) Vol. 6 No. 1 (2026): Januari 2026
Publisher : Lembaga Publikasi Ilmiah dan Penerbitan (LPIP)

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Abstract

Permasalahan utama yang dihadapi masyarakat Desa Sampetan, Kecamatan Gladagsari, Kabupaten Boyolali adalah penggunaan listrik yang kurang efisien akibat lampu penerangan jalan yang sering dibiarkan menyala tanpa pengawasan optimal. Untuk mengatasi hal tersebut, program pengabdian masyarakat ini menerapkan teknologi Internet of Things (IoT) pada sistem kendali lampu berbasis mobile. Metode yang digunakan meliputi sosialisasi kepada masyarakat mengenai konsep IoT, pelatihan penggunaan aplikasi mobile untuk pengendalian lampu jarak jauh, serta instalasi perangkat keras berupa modul kendali berbasis mikrokontroler dan sensor otomatis. Implementasi sistem ini memungkinkan masyarakat mengontrol pencahayaan dengan lebih efisien melalui perangkat mobile, sehingga dapat menghemat energi listrik sekaligus meningkatkan kenyamanan dan keamanan lingkungan. Hasil program menunjukkan respons positif dari masyarakat terhadap penerapan IoT, dengan adanya peningkatan efisiensi penggunaan listrik serta pengurangan pemborosan energi akibat lampu yang tidak terpantau. Dengan demikian, teknologi ini diharapkan dapat terus dikembangkan dan diadaptasi pada sektor lain dalam mendukung konsep smart village.
Co-Authors Alsah Nur Laila Arif Nursyahid Budi Basuki S Budi Basuki Subagio, Budi Basuki Catur Budi Waluyo Dhea Ernanda Eddy Triyono Eko Supriyanto Endro Wasito Filda Hulwani Dewi Gayuh Pangestu Putri Hanny Nurrani Irfan Mujahidin Jeffri Pratama Karenza Balqis Muhlasah Novitasari Mara Muhlasah Novitasari Mara Rahadian, Helmy Rizkha Rochmatika Sarono Widodo, Sarono Sasya Puteri Setyahadi Slamet Mulyadi Slamet Widodo Suhendro Suhendro Thomas Agung Setiawan Thomas Agung Setyawan Tri Raharjo Yudantoro Tulus Pramuji