I've finally got my rig up and running, it's a 10 gal 240V system, currently RIMS but will be switching to HERMS. It was originally built by someone else for BrewTroller, but I switched to Brucontrol (zero regrets there). I'm running Brucontrol on a Mac with VirtualBox, it's working nicely.
I cannot figure out how to tune the PID algorithms. I've read all the background material, I've tried quite a range of values, and the system seems to consistently settle 30F above my target.
Here's the rig:
Here's the latest RIMS PID config:
And here is the result:
Any thoughts would be appreciated.