<![CDATA[The development of automation technology has encouraged the implementation of smart home concepts aimed at improving comfort, efficiency, and convenience in controlling electronic devices, particularly lighting systems. This study aims to design and implement an automatic lamp control prototype through simulation using Tinkercad by utilizing Arduino Uno, an LDR sensor as a light intensity detector, PIR sensors as motion detectors, and a relay as the lamp controller. The method used in this research is the Prototyping Process Model, which is carried out iteratively through the stages of communication, planning, design, prototype construction, evaluation, and system refinement. The results show that the system operates according to the designed logic, where the lamp turns on only under dark conditions when motion is detected, and remains off under bright conditions even when activity is present. The use of multiple PIR sensors has proven effective in expanding motion detection coverage, thereby increasing system responsiveness, while the LDR sensor plays an important role in improving energy efficiency by preventing unnecessary electricity consumption. Simulation using Tinkercad has also proven effective in simplifying the design and testing process before real-world implementation. The contribution of this research is the development of a smart home lighting control prototype that has been validated through Tinkercad simulation as an initial testing platform, thereby reducing hardware development costs and risks while providing a reference for the future development of Arduino-based smart home automation systems.]]>
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