The solar panels are shared between the fridge and some batteries. His house computer is connected to the charge controller of the panels, to the fridge AC inve

The solar panels are shared between the fridge and some batteries. His house computer is connected to the charge controller of the panels, to the fridge AC inverter and to thermometers inside and outside the fridge to decide whether to turn on the AC inverter. It also generates graphs of the temperatures, running times, etc. And it warns him if the fridge temperature gets too low. That said, I think the 3k lines include adapters for talking to the sensors, etc. The algorithm itself is about 250 lines: https://git.joeyh.name/index.cgi/joey/house.git/tree/src https://git.joeyh.name/index.cgi/joey/house.git/tree/src