Re: HD44780 16x2 LCD won't work with my Uno
I'm afraid I can't load the image at the link you posted. You can put a copy on our servers with the 'Upload attachment' tab just below the editing box when you post a reply. 800x600 is usually a good size, and we like to be able to see the wiring connections for ease of troubleshooting.
Don't worry about messy.. anyone with a tidy experimental circuit is either doing it for the fifth time or lying. ;-)
When you void a product warranty, you give up your right to sue the manufacturer if something goes wrong and accept full responsibility for whatever happens next. And then you truly own the product.