Also that it's a lot faster to paste ~1MB of text into a text editor and save that someplace reasonable than it is to paste that same text into Terminal. I gave up waiting on that and assume I might have run into some kind of maximum line length in the shell had I kept waiting for that to finish.
That third screen is also hooked up to a data acquisition device so as soon as I write the code to deal with it I'll be able to log that along with the temperature data.
USB extension cable acquired and installed. I now have three screens attached to my main coffee roaster. One is a laptop screen that shows my data logging, one is really for the other roaster but when that's not in use I can have it show a production dashboard, and the new one shows what the view through the sightglass would be if that weren't now covered up along with a reading on how dark the coffee is roasted (tracked live as I'm roasting it).
More work is happening on the machine tomorrow maybe. If all goes well I might end up with three screens attached to the coffee roaster (up from the current two screens), which is pretty ridiculous to think about given that it's not as if I have a control room for operating a full roasting plant.
Author of Typica software for coffee roasters.