Dewi Anggraeni
Departemen Fisika, Fakultas MIPA, Universitas Brawijaya

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IOT-BASED SMART FARMING IMPLEMENTATION TO OPTIMIZE WORK EFFICIENCY OF HYDROPONIC FARMERS PAKISAJI MALANG: IMPLEMENTASI SMART FARMING BERBASIS IOT: SOLUSI MENINGKATKAN EFEKTIVITAS PETANI HIDROPONIK PAKISAJI MALANG Risalatul Latifah; Triswantoro Putro; Dewi Anggraeni; Faridha Aprilia; Mayang Bunga Puspita; Lia Baroatul K
Darmabakti Cendekia: Journal of Community Service and Engagements Vol. 6 No. 1 (2024): JUNE 2024
Publisher : Faculty of Vocational Studies, Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/dc.V6.I1.2024.26-31

Abstract

Background: Farmers can market their crops due to the significant market share for hydroponic agriculture products. However, this presents a dilemma as the market demands a consistent supply of high-quality crops. Precise nutrient levels and controlled chemical-physics parameters are crucial considerations in hydroponic yields. Thus far, these factors have been managed manually, leading to challenges in achieving desired outcomes. Objective: This community service program aimed to address this issue by developing a real-time automated system for monitoring and controlling chemicalphysics parameters and nutrient levels via an Android application. The goal was to enhance the effectiveness and productivity of hydroponic crop harvests. Method: The program commenced with designing the system based on farmer requirements, followed by the installation and testing of equipment at partner locations. Subsequently, technical training on system features and usage was provided. Results: The system was successfully installed at Grahaponik. According to questionnaire responses, 68.4% of farmers expressed satisfaction, and 78.9% of total participants reported that the system was easy to employ. Technology installation, implementation, and dissemination to local hydroponic farmer groups were conducted. Hydroponic farmers acknowledged the user-friendliness of the devices. Conclusion: Partners' acceptance of the instruments was favorable, facilitating their ease of use and thereby enhancing the effectiveness of hydroponic farming.
DESIGN OF A PORTABLE PHOTOTHERAPY UNIT FOR HYPERBILIRUBINEMIA USING SURFACE MOUNTING DEVICE LIGHT EMITTING DIODES Sri Herwiningsih; Dewi Anggraeni; Mustika Dewi; Daniswara Prayoga Ismoyo
Indonesian Physical Review Vol. 8 No. 1 (2025)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ipr.v8i1.371

Abstract

Hyperbilirubinemia is a condition of a high bilirubin level in newborns causing a yellowish color on newborns’ skin and sclera. One of the treatment methods commonly used for hyperbilirubinemia is phototherapy in which newborns are exposed to visible light, especially within the green-blue spectrum. This study aimed to design a prototype of a portable phototherapy unit for newborns with hyperbilirubinemia. The phototherapy unit was designed by using a Surface Mounting Device Light Emitting Diode (SMD LED) with a wavelength of 400-520 nm as a light source which was attached to a fabric inside a box made of acrylic. The SMD LED strips were arranged with a spacing of 5 cm between the SMD LED arrays. The system was equipped with a monitoring system using SHT11 as a temperature and humidity sensor as well as a timer to adjust the duration of exposure and the LCD. The prototype was tested by irradiating various concentrations of artificial bilirubin solutions with a blue light produced by the phototherapy unit. The results show that the system can reduce the concentration of artificial bilirubin solution with an average reduction of 30.8%. The system shows the potential to be used as a portable phototherapy unit, further improvement on the efficacy, safety and comfort of the unit is required.