I have the electronics modeled and layed out. A laptop, a raspberry pi, a phone, a portable battery, and a portable satellite dish. All made in 3dsMax.
Humble Bundle has an Arduino book package from Make which also has a lot of stuff with sensors, etc. https://www.humblebundle.com/books/make-arduino-and-raspberry-pi
I am thinking of moving from normal backups to versioned backups with a local P4 setup (OSX or Linux). https://www.perforce.com/blog/140228/run-p4d-website-raspberry-pi
It's also salt water. Having salt water next to a pc for any amout of time vever ends well. I get using the audio port on the PC to keep the price down. But are arduinos that expensive. Even a dedicated Raspberry Pi would only cost $20-30.