tech

The iButton (DS1922L), USB reader (DS9490B#) and environmental capsule thingy (DS9107+) arrived today. I had to dig into the source code of the example programs to figure out how to access the logger - entirely because they're idiots, as it turns out. But, after that, it was easy

I just ordered an iButton temperature logger (looks like a large watch battery) and a USB reader. Set at a 15 minute interval, the iButton should be able to record the temperature for over forty days without exhausting its internal memory. The battery is rated to last for a decade.

I wrote an Objective-C program to parse all of my iChat log files (necessary because the format is a binary property list that I really didn't want to have to parse by hand) which go back to early 2005 (the pre-2005 logs are backed up elsewhere and in