GameDock
A Kickstarter-funded console that turned an iPhone, iPod touch, or iPad into a TV-connected game system.
GameDock was a small console you docked an iOS device into. It connected to a TV over HDMI, ran iCade-compatible games and titles built specifically for it, and used a pair of NES-style USB controllers. I designed the hardware and wrote the firmware, and I learned more about manufacturing in those few months than I had in years of school.
We funded on Kickstarter and ended up doing a production run of over five hundred units. That meant sourcing components out of Shenzhen, working through assembly issues at three in the morning Pacific time, and making honest design tradeoffs against a price target that did not move. The press was generous to us. IGN, The Verge, and Ars Technica all covered it, which helped backers find us and which I still appreciate years later.
It is the project I bring up when I want to remind myself that hardware is humbling, and that shipping a real product to real people is one of the better teachers a young engineer can find.