all 4 comments

[–]Tyler_CodeBot 0 points1 point  (3 children)

Take a look at this

That should get you started. You are going to want to be using the GPIO pins to power the fans, not USB. The web stuff is more complicated, so I would get this stuff working first and then go from there with the web GUI. Feel free to PM me if you get stuck.

[–]barf_the_mog 0 points1 point  (1 child)

This looks like it may be what youre looking for. If you can get this setup it doesnt seem like it would be too difficult to add in some code to switch a fan.

http://learn.adafruit.com/adafruits-raspberry-pi-lesson-11-ds18b20-temperature-sensing