Hello.
I've got a nice VFD modules, which in theory have parallel mode too, https://www.newhavendisplay.com/m022...11g-p-815.html But I was not able to make them work with PBP in that mode. I tried serial mode (3 Wire SPI, no I2C) with arduino and it works.

So I have a question, can LCDOUT statement work with SPI?
I found a tread called Serial LCD backpacks, but not sure about things there, and it is locked anyway, so no questions can be asked...