16x2 lcd with UnoR3 probs

knuckles,
It takes only a few minutes to wire up an LCD to an Arduino
It takes even less time to for an experience person to be able to detect
a wiring error or mismatched LiquidCrystal constructor if
all the non working information supplied.
The needed information is:

  • the full sketch being used
  • A clear photo that shows all the wiring

If you would supply both of those your problem would be resolved
very quickly.

--- bill