Switching from Arduino uno 2x16 screen to 4x20 lcd screen

[StefanL38]

Hi @ayhancan65

welcome to the arduino-forum.
The first thing to do is to RE-edit your posting to post your code as a code-section.
Read this tutorial to learn how you do this

Make experienced users help: two ways to quickly post code as a code-section

Hi newcomer, This thread wants to show you how you can speed-up getting helpful answers with small effort. If you manage at least to post this way. You have the sympathy of the experienced users. If you are willing to invest another 20 minutes these 20 minutes extra-time will save you a minimum of 200 minutes to finish your project. always post your full sketch. As a code-section from the very first to the very last line A code-section has a small height => keeps your posting "short" but…

best regards Stefan