Automatic Lighting System Development in the Reading Room Library of Electronic Engineering Education Department, Faculty of Engineering, Universitas Negeri Makassar

The research objectives of this study are: (1) to determine the stages of developing an automatic lighting system in the library reading room, and (2) to determine the results of functionality and usability testing of the automatic lighting system in the library of the Department of Electronic Engineering Education. This research was conducted using the R&D (Research and Development) method with the ADDED development model, which stands for Analyze, Design, Development, Evaluation, and Dissemination. The testing of this device involved two tests: functionality and usability. The functionality testing resulted in an X value of 1, which is interpreted as very good according to the test case rules. Meanwhile, the usability testing included the aspects of usefulness (93%), ease of use (92%), user satisfaction (90%), and ease of learning (94%), with an average percentage of 92%, categorized as very suitable (≥90%). Suggestions for further research include implementing the system on a larger scale and integrating it with the library's lighting installation