I have a four pin 20x4 sainsmart LCD, my main problem is that I can't print out hello world on to the screen. I'm using the audino uno and not totally sure what ports or whats wrong with the code I'm using.
Every bit of info on this seem very out of date with gaps, If someone know the latest library and ports for this would be a great help.
I think our lcd screen need newer drivers and library. I"ll add the code later on but anyone can direct me to the most recent stuff for this type of lcd again would be fantastic.