I want to handle the LD 20x4 very well with Arduino. I have done basic tests from the PC using the C # language to simulate a 20x4 LCD with Arduino. The base looks the same.
I want to know if anyone has example about creating menus with submenus in Arduino.
I leave an example of what I have done simulating from the PC a 20x4 LCD screen.
I maintain a menu solution that is relatively popular called tcMenu. It gives you many, many display and input options. It also comes with a designer ui and is capable of Ethernet and Serial remote control. You’ll see a few threads mentioning it here too.