<![CDATA[Home automation systems provide a practical approach to controlling household devices remotely. One approach is to use Short Message Service (SMS), which allows users to send commands through a mobile phone without requiring a dedicated application. This study aims to analyze an SMS-based home automation system using Arduino Uno to control lights, curtains, and a plant-watering mechanism. The system uses Arduino Uno as the main controller, a GSM modem as the communication medium, a relay as an electronic switch, and servo motors as mechanical actuators. The research method consists of requirements analysis, system design, implementation, and functional testing. Testing was conducted using three main commands: “Pagi”, “Malam”, and “Siram”. The results show that the “Pagi” command successfully turns the light off and opens the curtain, the “Malam” command successfully turns the light on and closes the curtain, while the “Siram” command successfully activates the watering mechanism for 9 seconds before returning to its initial position. All three tested scenarios produced responses consistent with the designed functions. These results demonstrate that SMS can be used as a simple control mechanism for integrating several household devices with different actuator characteristics.]]>
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