So there I was, walking back from picking up a fob for my flat building's car park when I realised Octopus Energy, our energy supplier have smart meters. They must have an API, so I did a bit of digging and that's when I came across it. Neat, now I'd rather not have to pay for a little smart meter that'll just show our energy usage, rather, a dashboard that can be display on a tablet, that's stuck on the wall, and it could be used to display the following:WeatherEnergy UsageProbably just start off...