A few months back I promised (to @SteamyTea I think) to share further details about a side-project involving monitoring and controlling our MVHR unit with a Raspberry Pi. I was hoping to mature it to beyond beta stage before presenting it but, frankly, it'll probably always be in some unfinished state of development as between my extension and nearly-3yr old daughter I don't find much time for 'playing around' (as my wife calls this sort of thing). So, I thought I'd just share what I've got now