Is it possible to use a cheap temperature sensor such as the DHT-22 with the Raspberry Pi? I have found Arduino drivers for this and many similar things, and would be comfortable porting the code to the Raspberry Pi, but my understanding is that because it requires such specific timings that having a dedicated microcontroller without a full OS makes it much simpler.

I am attempting to build a controller for a climate control system for aging, for instance, cheese. It would need to be connected to a couple of relays and a temperature and humidity sensor, and this seems like it would be an extremely cost effective way to do it.