This new technology (micro controllers / sensors / etc) is super interesting to me. I've read enough that I can follow along, but I have yet to build even my simplest ideas. I'll just say I have more ideas than abilities
That is a nice feature. Mine are in the red zone a lot lately (close to empty)..... I've got a feeling I'll be going back to the filling station with my 3 tanks in the next couple of months.
I almost remember reading something that said pressure wasn't the best way to see how full the tank is. I know weight is probably most accurate.