Did you use 2 (or more) I/O expanders? (MCP23017)

Thanks for your reply @ScruffR !
That’s also what @jbeacon explained in the library discussion (LINK)

I will do my best, but I’m not sure if I can figure it out how exactly to do this.
Actually, I was hoping for an example… :wink:

PS: I’m only a hardware engineer who has programming in “wiring” as a hobby…