High-tech floorplan layout software.

Dry routing of the power and distribution cables. On the previous visit, I used pink string to spec out the lengths so I knew how much cable to buy.

Temperature sensing. The numbers are 32-bit network addresses on the communications bus, believe or not. This is not a simple system! The foam balls allow the sensors to maintain the same depth in the tank over various amounts of water.

Yet another oddball one-off part.

And on the subject of oddball...

After I took the offer to leave ISU, I had very little time to wrap this up. There were a lot of undocumented design changes.

But overall, the thing is quite neat and well organized.

I tried to write down as much as I could, and I took lots of pictures as documentation, too.