I finally took delivery of a big box of things to plug into my CHIP, so it's time to start learning in earnest.
I followed the directions from @fordsfords (on the wiki) to wire up two LEDs to two XIO pins. Then — because I'm me — I had to figure out how to drive them from Ruby!
I found a couple of existing GPIO gems (pi_piper, gpio), but they were both too complicated for me to figure out how to make them work for the CHIP before I got annoyed.
So I wrote my own: https://github.com/willia4/chip-gpio. It is very basic right now, but I intend to add more features (event-driven inputs, PWM, etc.) as I get deeper into my projects.
For now, at least, it's good enough to flash some LEDs. So I wrote a little ruby script to do just that: https://github.com/willia4/chip-experiments/tree/master/ping_pong_flash.
The end result: 4MB GIF File of Two LEDs Flashing
Now, to figure out what to do with independently controlled LEDs...