This menu works without an LCD display and only requires one button and one LED. But it still has as many options as an LCD menu. The advantage of this menu is that it can be used for devices that do not have an LCD display.
See the full article here:
one-button-menu
I think it can help a lot of people. The software works very well but I don't have time to write a nice universal library for it. Who feels called to do this?
See GitHub One-Button-Menu/One-button-menu.ino at main · avandalen/One-Button-Menu · GitHub