thanks for the help.

since the uC that i use has only 16k of memory, it seems to be impossible to enter the whole key mapping for the different keyboards i want to use (i only want to use the QWERTY, AZERTY and QWERTZU keyboards)

does anyone have a solution for making the whole keymapping for these 3 keyboards.

i've already an idea, but i don't know if it's gonna fit into the memory. i only make 1 key mapping (QWERTY). and 2 incomplete keymappings, with only the keys that are different from the QWERTY lay-out.