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As educators we want to make sure that our students are learning and understanding the material we teach them and that they will know how to apply it to solve real engineering problems. A vast amount of research has been dedicated to the study of new teaching methods and laboratory curricula to ensure that our students are understanding, learning, and applying this knowledge to solve problems. Our university emphasizes a hands-on approach to engineering education. From the beginning of the freshman year to the senior year, students participate in different levels of engineering projects. For our (analog) Electronics and Lab course we looked for a project-based learning experience that would help us to evaluate (1) how well our junior engineering students could apply the knowledge acquired in their freshman and sophomore engineering courses, (2) if they could integrate this knowledge with what they were learning in the current Electronics course, (3) how to put it into practice when interfacing the Arduino microcontroller to practical analog circuits and (4) if they could be challenged to seek to learn concepts from future engineering courses. For this purpose a Radio Controlled Race Car Project was selected as a semester-long project. The electronic project was divided into four distinguishable subsystems, 1) analog radio control, 2) radio transmitter/receiver, 3) control unit, based on an Arduino microcontroller, and 4) power subsystem. Except for the Arduino microcontroller, the use of microchips was restricted and only common analog components were allowed. At the beginning of the semester, the students were presented with the project challenge. They were divided into groups of 4 to 5 and began by clarifying the problem they wanted to solve, assessing how much they already knew about the problem and how much they needed to research. The next time they met, with the results of their research, they brainstormed for possible solutions, divided the work in accordance with the project subsystems, and prepared to work during the semester to implement a final solution. On the final report students were requested to identify where and explain how the following concepts were applied in their project: resonance, impedance, impedance matching, maximum power transfer, voltage regulation, DC/AC voltage conversion, filtering, Barkhausen’s criterion, oscillators, frequency modulation, energy conversion and transformation, power losses and efficiency. The positive results of student understanding, learning and application of acquired knowledge to solve engineering problems may prompt the implementation of other projects that may include multidisciplinary collaboration and integration of projects between classes.

A Radio Controlled Race Car Project to Evaluate Student Learning in Electronics