The agricultural sector in Indonesia faces significant challenges in adopting digital technology due to user interface designs that are often too technical and complex for the general public. Although IoT-based monitoring systems are increasingly being developed, the presentation of raw data and complex graphs often leads to misinterpretation of information by non-technical users. This research aims to design an agricultural monitoring system interface specifically tailored for users without an IT background, with a focus on visual clarity and ease of interaction. Development was conducted using an Object-Oriented approach, leveraging the Unified Modeling Language (UML) to model user interaction requirements through use case, class, and sequence diagrams. The research resulted in a modern interface architecture that integrates intuitive visual metaphors, such as a 2D thermometer indicator for temperature and a water droplet icon for humidity, supported by a color-based warning system. The findings indicate that by simplifying data presentation and using familiar visual representations, the system can bridge the digital literacy gap. In conclusion, user-centered interface design significantly enhances the effectiveness of environmental parameter monitoring and promotes the adoption of sustainable smart farming technology among non-technical farm managers.
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