So I have the TC4 and it's working great with Artisan. The SSR from Jim arrived earlier in the week. I know how to wire that, but what I'm confused about now is which sketch I need to use.

I see there is an artisan PID on the Google code page, but I also see there is an arduino PID library offered by arduino. Do I need both? And does the artisan PID sketch replace the TC4 standard?

Sorry to ask so my mundane questions but there is very little information out there on setting these things up.