Development of an STM32 Microcontroller Training Kit for Project Based Learning in Microcontroller Application Programming to Improve Vocational Student Understanding of Microcontroller Programming

Abstract

This research originated from the competency gap between vocational high school graduates in Electronics Engineering and industry requirements. The dominance of theoretical learning has resulted in students having limited practical skills. This study aims to develop an STM32 Microcontroller Training Kit integrated with Project Based Learning and to evaluate its feasibility, practicality, and effectiveness in improving learning outcomes in the Electronics Engineering competency area. The research employed a Research and Development method using the ADDIE model. The research subjects were eleventh grade students of Industrial Electronics Engineering at SMKN 1 Kalinyamatan, divided into experimental and control groups. Data were collected through observation, interviews, expert validation, user response questionnaires, as well as pretest and posttest assessments. The validation results indicated that the product was highly feasible, with a Content Validity Index of 0.97 from media experts and 0.92 from material experts. The practicality test obtained a CVI score of 0.95, categorized as very practical. The effectiveness test using the Independent Sample T Test showed a significance value of 0.00, which was lower than 0.05. The average posttest score of the experimental class was 85.00, which was higher than the control class score of 68.33. The N Gain analysis showed an improvement of 69.89 percent in the experimental class, which was categorized as sufficiently effective. It can be concluded that the STM32 Training Kit based on Project Based Learning is valid, practical, and effective in improving vocational student competencies in accordance with industry standards within the context of electronic vocational education.