Arduino sketch that allows direct manual control of the pins over the serial interface. This is the older, fancier version which is only capable of controlling outputs. It has some hardcoded values that may need to be adjusted.
A less fancy but generally improved rewritten version of the manual control Arduino sketch that is more feature-packed and better suited for interaction with programs while still being usable for humans.
The .bashrc I have in the user home skel of my server and home folders everywhere. Basically sets a nice prompt and some aliases. Also makes Nano the default editor because fuck vi.