The emergence of the Maker community has prompted the development of affordable, open-source hardware and software such as the Arduino microcontroller development platform. The Arduino has been utilized at all levels of formal STEM education to introduce embedded control systems and code development. This flash talk will highlight our efforts to improve the electronics knowledge and skills of Automotive Technology students through the introduction of Arduino-based hardware and software exercises that progress from demonstrating basic circuit functions to emulating vehicle control modules and diagnostic scan tools.