KSP Control Panel – Part 2

I've done some more work on the KSP control panel - I've connected up all of the button and switches on the first two panels, and have them talking to an Arduino Leonardo. The bottom pic shows the first custom PCB I've ever designed and had made. It's basically some shift registers and pull-downs to support 16 buttons/switches per PCB, will connections to allow chaining multiple copies together. It was a cool and pretty inexpensive experience - I think I might try to make more custom boards in the future. For example, a lot of my neopixel-based clock ideas are essentially the same circuit every time. I might try to design an Arduino Shield with that circuit on it, to make my designs cleaner and faster to build.