http://jeepingben.homelinux.net/index.php?level=album&id=26
After attempting to use a bmp085 as a temperature sensor for my skiwax program (http://jeepingben.homelinux.net/wax/) and not getting good results (at least partially due to thermal leakage through the i2c wires), I added a mlx90614 to my freerunner. It is an infrared thermometer with a temperature range of -70C to 380C. It reacts quickly to changes in temperature and sort of fits in the freerunner case. Installation is similar to the Freerunner Navigation Board install. Christoph Mair has written a kernel module for it. The module is on gitorious, but is not yet available upstream.
There is a similar part called a mlx90615 which is much smaller, but also has a smaller temperature range. It may not work with the current kernel module, but could probably work with small changes.
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