I just finished assembling the next version of the keychain, finally living up to its name. It's keychain-sized, perhaps a *bit* on the chunky side, but small enough to keep in the little "pocket pocket" above the main pocket of my jeans, you know, where people put spare change and keys and stuff. It fits in there along with the rest of my keychain, which is great for use outdoors.

There were many surprises with this version, like the challenge of building a fixture for programming it (since the test pads are so small), as well as the challenges of building an enclosure with a window. It's a little rough around the edges, so I'm thinking of ways to make it look a bit cleaner.... not that it matters much, but I keep comparing it to the seamless construction of my Casio F91-W, with is slightly beveled window and delicate printing. Perhaps an unfair comparison, but if anyone knows how to get that level of fidelity on a mini device enclosure, please let me know.

At any rate, the hard part is over. Now I get to see if it's actually useful. I'll loop back with what I learn later. For the time being, I'm excited to put this project out of my mind for a while... it was a lot more than I expected!