Just a novice Q for DIY pedals?

I see a lot of confusion out there about what to use and what not to use concerning SDK !

I’m just started Arduino tinkering and I got my first project finished controlling my airpumps for my garden pond - now I want a new project.

I just trying to make a DIY set of pedals and maybe later more for the FS2020 - do I need to use SDK for that ?