Quadcopters
I work with different kinds of quadcopters for different applications. My first quadcopter that I built was a 450mm with a custom payload delivery system and the second was a 210mm with an FPV system.
Wheeled Robots
The most interesting and challenging class at UC Santa Cruz was Introduction to Mechatronics. The final project of this class was to build an autonomous wheeled robot that could complete a challenging task.