Explore the design process behind Adafruit's Circuit Playground in this comprehensive video lecture. Dive into the creative journey of transforming evaluation boards and breadboard components into a single PCB. Learn about electrical and mechanical design, component selection, and technical specifications. Witness the routing process, layout decisions, and component placement. Discover how to overcome design challenges, such as incorporating resistive touch without 20M ohm resistor packs. Follow along as prototype PCBs are prepared for fabrication, including generating and previewing Gerber files. Gain insights into topics like CAD layout, design changes, size considerations, sensor integration, and enclosure planning. Master the intricacies of PCB design, from silkscreen and graphics to troubleshooting DRC and trace errors.