Thanks for this thread. My EVSE would just go black screen after about 15 minutes of charging and be completely unresponsive until reset. Making it "dumb" made it functional again. Nice to see there is some support still out there for these.
It seems to me that the amount of tax credit that you qualify for is one of the biggest driving factors in deciding whether to buy outright or lease then buy. Using the spreadsheet it looks like $7050 or higher for tax credit makes buying more attractive. Where as if don't qualify for at least...