The trend of educational innovation from a content approach to a competency approach raises the need to innovate teaching methods. For new innovation, learners need guidance and supports in practical activity. The ultimate goal of project-based learning is specific circuit, for applying knowledge to solve daily problems. Teaching STEM topics is to improve knowledge and skills in science, technology, engineering, and mathematics for learners. For Electronic Practice course, lessons are structured as projects to meet the requirement of STEM education. The article suggests that the knowledge and skills acquired through project-based teaching surpass those obtained through traditional teaching methods. In addition, it proposes experimenting with implementing project-based STEM method in the Electronics Practice course with three lessons specifically designed by integrating individual lessons. The STEM project-based teaching process for the lesson “Design and Assemble the regulator Power 5V DC” is presented, analyzed, and designed with completely new questionnaires. This will be a reference for lecturers while teaching the Electronics Practice course to innovate teaching methods to keep up with current development speed.