I am trying to salvage a 12864 monochrome matrix LCD from a burnt GM328 transistor tester. In this board, LCD Vdd is connected to 3.3V, but the logic pins go to the Atmel Mega 328p, running at 5V Vcc.
Can this be correct?
I can't find any data sheet for this particular LCD, but I made it work using ST7567_ENH_DG128064_4W_SW_SPI driver from U8G2 lib.
So, is this LCD supposed to work using 3.3V for Vdd and 5V for the rest?
Or, does this even make sense? Has anyone seen any LCD wired like this?
