Very nice Larry.
What roaster were you testing it on?
Have you tested it on many roasters or does that step come down the line?
First will be the hottop (that's what I have it hooked up to in the video). Next a Behmor, cause I have one... then my Ambex once I understand more about the control logic. 4 - 5 lbs of coffee per test is a bit much even for me.
Your Alpenrost could be done, I've controlled one before with the early version of the milowidget. It needs a high voltage board.
I plan to do some tests in the next few days on how quickly I can get to 1st crack with the hottop with the fan on and off. I plan to start with a little higher drop temp than it currently allows.