hi,
I got a bunch of hd44780 compatible LCDs which are designed to run on 5v. I'd like to use them with an 3,3v arduino clone. It seems the logic takes the 3,3 v without a problem, but the characters are barely visible because the 3,3 v are not enouth for readable contrast (you got to tie pin 3 to ground for contrast)
What would be an easy solution for this problem? I don't want to get 3,3 v displays because I'd like to use the one I have and besides that their orange is so beautiful
any hint is very appreciated