 This study aimed to develop a physics e-module using an integrated project-based learning model with an ethno-STEM approach on smartphones for class the 11th high school students, following the plump development model and utilizing various instruments such as questionnaires and skills assessment sheets. The result was a valid, practical, and effective physics e-module that meets the criteria for successful implementation. This article was authored by YolkaFly, YolkaFly, Yohandri, Yohandri, and Hasbi-Azis.