Carrying on from building my AX-80 rack mount I bought some slim displays that could actually be used to repair an Akai AX-80 with broken displays. Originally I used ST7789 2" 320x240 SPI displays for my own builds, but I found these monochrome SSD1322 3.12" 256x64 SPI displays. They are actually more expensive than the 2" displays, but they are possibly suitable as a replacement/upgrade for the AX-80.
So I recoded my sketch to support these displays and the monochrome, I had to remove the labels because they are no longer needed in the real AX and I cannot generate the custom orange block at the bottom of each column in the genuine AX, so that is mimicked with a solid rectangle when selected.
