For his home espresso machine, Mike Furlotti resurrected a Linea and modded it unlike any other mods I’ve never seen before. Mike purchased a non-functioning Linea from eBay, refurbed it, added PIDs to both boilers and preheated water inlets. Best of all, he embedded a web server running an MSP430 so he can control it from his iPhone. Why? So he can start the machine up and preheat it before he gets home. Monitoring and adjusting the temperature remotely is also built in.