Hello,
I've seen that there have been posts on this topic before but I haven't found a fitting solution, this is the 2nd LCD I have connected to an Arduino and the first one worked the way I did it, the difference is that the other one that works is 16x1 and green, and the one now is 16x2 and blue but I believe it should be the same for controlling it. I hope that someone can help me understand and fix my problem.
Thank you!