I too have been thinking about that. With the many variations of setups being used, it might get tricky to implement but I'd doable. I also thought you could maybe add a trigger for writing/reading a file. So, for example, after a mash, a trigger could touch a mash_complete file and then a python (or your favorite scripting language) script could be watching that directory for that file and perform additional user-created functions such as opening valves, turning on pumps, monitoring volumes, etc. in ways not yet implemented in SBE and then that script could then touch a file that SBE is monitoring to resume the SBE profile. This would theoretically allow the inclined to fully automate the whole process including hops additions, chiller flow control, etc. Since I'm worried about running out of I/Os (without an expansion board) and whether or not the functionality would be spotted in SBE, I had also considered doing this using a few I/Os on the pi as a binary encoder (via switch outputs from SBE) to trigger various actions on an Arduino (i.e with three pins I could define 8 states) but haven't messed with it yet. I was going to approach this with more thought after we completed or new control panel, but since you brought it up.Loving it Doug! :cheers: