Wiring advice for 4 buttons on proffie v2.2

[NoSloppy]

@DudeFromOz

can i use any of the spare data pins and define it as the pin for my button?

yes.

@profezzorn

You can use any pin that hooks up directly to the CPU to drive pixels. This includes data1-4, rx,tx and button1-3 for a total of 9 possible data lines.

You can assign them any way you want in the CONFIG_BUTTONS section of your config file.