Frankenstein's Thermometer, redux

Finally managed to find a diagramming program I didn't dislike: a freeware version of Eagle. It produced the following circuit diagram for the thermometer:

There's not too much to say about that circuit, except that an ATtiny24 probably doesn't have enough storage to run the program. I used an -84. (Note that I don't think that arduino-tiny supports -44 chips yet.)

Here's a picture of the finished "product" in mid-measure:

It runs on two AAA batteries.