Bought larger version, which has 128x64 pixels arrangement.
But the issue is, that above code can write only to upper 32 lines of display.

https://blog.projectryu.com/using-di...d-with-pic18f/

This appears to be quite similar, but not exactly, to my module. And by sending some wild bits, I found out two things:

1. it is somehow possible to adjust contrast via software, but I guess, I'm sending wrong bytes, since display hangs after this (but remaining picture has high contrast)

LCDOUT $FE, $80
LCDOUT $FE, 10

above mentioned code mentions some X variable, which seems to be the "divider" between upper and lower parts of the screen, based on this pic: https://blog.projectryu.com/wp-conte...ddress-Map.jpg

But I can't get idea, where to write it?