Don't be intimidated, its not hard at all, really. All you need to do is run a couple of scripts.
Lets get started, shall we?
Step 1: Get the goods
If you don't, I assume that there are the same packages for yum, but I can't test that. (Fedora doesn't like me)
Now, you must run a long and complicated thingymabober:
sudo apt-get install avrdude avr-libc gcc-avrsudo apt-get remove brltty
And yes, removing that package is safe. (Tip from here) If it gives you an error saying its not installed, you're good, don't worry.