Ever since I come here, I do enjoy this application. And why am I upload this? I wanted to ask you guys, the way you made are cool, but just one thing; using ground on a 7 LED display at the lone node are driving me crazy. I'm showing you guys the the way to use it, it's that 'dot' for decimal point, same thing on a actual display that you find/get at the electronic store (and that one does need a ground for it). And why this doesn't need to have a ground for this app? Simple, it does it own thing, and not a extra work on it. So I hoped that help you to use them the right way. I don't want your teacher to blamed you on this. Let me know the better answer for this so other people can have this as reference.
Thanks for understanding folks, still though, I do like your guys project and this community, I thank you guys for inspiration you giving. :)
